Someone Asks People To Share Facts That “Barely Anyone Knows”, And They Deliver (30 Answers)
There’s more to our wonderful world than any single person could ever know. When one Reddit post asked people to share facts that they thought nobody else knows, the rest of us got a great list of curiosities from around the world.
Did you know, for example, that dolphins can be trained to perform military aquatic guard duty? Or that grass only evolved once dinosaurs were practically extinct? There are plenty more fascinating facts in this list, so scroll on and learn something new!
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The "dog days of summer" refers to the time of the year when the dog star, Sirius, is brightest in the sky.
In the northern hemisphere, Sirius is the brightest star in the sky during "the dogs days of summer," July 3 to August 11, typically a stretch of uncomfortably sultry weather.
Even though Sirius isn’t visible in the summer, they are called “the dog days” because people believed the combined heat of the sun (which was visible) and Sirius (again, not visible, but still high in the sky) made the days extra hot.
Common knowledge to you perhaps, but I didn't know, and it seems I'm not the only one.
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Sarah Winchester (who built the “Winchester Mystery House”) was not into the occult, wasn’t afraid of evil spirits, and didn’t think she could live forever by continuing construction of her house - or, at least there is no evidence to support that. People who knew her said she was a devout Christian and would never have anything to do with the occult. The stories about spiritualism and paranoia are for the tourists. She probably just liked having workmen around and a little activity going on at the house - she was one of the richest women in the world, so she could do as she pleased. Some who knew her said she may have done it to keep locals employed. Far from being afraid of stopping construction, one of her letters mentions that she halted construction due to excessive heat out of concern for the workmen.
It’s interesting how BS can just take the place of reality if it’s repeated often enough.
Yes this. Also, when you visit it it’s not that weird. Yes some of the angles and doors and one staircase are nonsensical, but a lot of the features were practical to accommodate her physical disabilities. I was surprised how many of the rooms were juts light, airy, and pleasant. The tourist PR spin ends up being irritating when you visit the house.
It's a cool house to visit, and has very interesting designs and things, but it is definitely only spooky if you let it be spooky. :)
Load More Replies...She had friends and family including a niece she was very close to. She kept a lot of Asian workers employed as they were discriminated against by other employers. She loved architecture and building was a hobby that helped take her mind off the tragic loss of close family members.
Load More Replies...But the house has a big, beautiful Tiffany stained glass window that was put facing south. It has never been able to catch direct sunlight. Now what kind of crazy person would allow this!?!?!
We drive by that beautiful mansion once a week - on the way to the Farmers Market.
Upvote for the cat, but otherwise, what's it got to do with Winchester?
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Sharks have been around longer than the rings of Saturn.
That’s right! Current estimates suggest that Saturn’s rings are about 400 million years old, while sharks evolved roughly 450 million years ago. Interestingly, that also makes sharks older than trees and grass.
Modern humans been around for about 200,000 years. Humans about 6 million. We were in a stone age for about 2.6 million years.
We were not the first to use stone tools. There was another species, probably a close cousin, that used them about 700,000 years before the first human.
Chimpanzees and some other animals are currently in a stone age.
Dinosaurs died out 65 million years ago. Triceratops were probably the last species to die out.
Grass didn't evolve until 66 million years ago (iirc) so only the last of the dinosaurs saw grass.
Tyrannosaurus and triceratops lived closer to us (65 million years) than the stegosaurus (80 million years).
I have more. I'm full of useless facts.
To think of other animals as if they are "in their stone age" is a misconception though. It implies evolution is a single path and humans are the most advanced on it while other species are only starting to follow. This is not how evolution works. We are not "on top" of it. There is not only one path, there are actually as many ways of living and evolving as there have been living species on Earth. The human way is only one - very specific, powerful and problematic - among many others. Besides, apes and other animals that use tools were probably doing it long before humanity even existed. Maybe we even started doing it by imitating others, since this is actually what we are very good at - observe and mimic.
I agree that assuming it means they are following our path is a misconception, but the way "stone age" is used in describing other species' current state isn't meant to say such a thing.
Load More Replies...There are fish near the remains of Krakatoa that swim upside down holding a leaf to protect themselves from fisher birds - seems like tool use to me
Chimpanzees are not in a Stone Age. This implies that they will eventually learn to make copper tools, build pyramids, learn to eventually forge bronze and steel. No, they are tool using primates. Peer reviewed science shows they don’t learn and teach the way our branch of humans did and does
A potential future state of being isn't part of the definition of being in a stone age. They simply need to be using weapons or tools made of stone or organic material. "It turns out, the Stone Age isn't the most exclusive club. Chimpanzees, capuchin monkeys and long-tailed macaques have also joined: archeological remains now document that they were using stone tools in the past. Sea otters may be next. In each of the primate species, tool use is a socially learned behavior. "It has become part of their culture," said Katarina Almeida-Warren, a primate archaeologist at the University of Oxford who studies chimpanzees. Different groups use different tools. Some chimpanzee groups, for example, use a 'hammer' rock dropped on an 'anvil' rock to crush nuts, Almeida-Warren told Live Science." Which animals have entered the 'Stone Age'? | Live Science https://www.livescience.com/which-animals-use-stone-tools
Load More Replies...Chimpanzees and other primates are not currently "in a stone age". Research has shown that chimpanzees do not have the spontaneous ability to create complex tools from rocks, even if they use stones in the wild.
All that time and sharks haven't done a freaking thing with themselves. Where are their houses? Where are their televisions, sports, or tools? What a stupid worthless fish
Me too, but it's fun to entertain friends!! Can anyone tell me what the MINUS number mean under your name at the top? I went from minus 4 to minus over 1000. WHY???
There are at least three people who were born before the Wright Brothers took their first flight at Kittyhawk who were still alive when the Mars Rover died.
When they were born, humankind was stuck on the ground. In their lifetime, they saw single person flight, then military flight, intercontinental flight, a (gasp) female pilot, commercial flights, supersonic flight, space flight, humans on the moon, a probe sent out of the solar system, a robot cruising around on an entirely different planet picking up rocks, and finally that robot had been there so long it died. All in their lifetime.
That's just crazy to me.
Except that they were probably like two when the Wright Brothers thing happened tho
Load More Replies...That is remarkable. However, saying that "humankind was stuck on the ground" before Kittyhawk isn't quite right. The first manned hot air balloon ascent was on November 21, 1783, more than 100 years earlier.
I think the point still stands - it’s amazing what we’ve accomplished in just one human lifespan!
Load More Replies...My Great Grandma was born in 1901 and lived over 100 years. I regret nor asking her more about her childhood and growing up and it always blows my mind when I think of all the things she saw.
My generation heard our parents' and grandparents' music on 78s or even drums. Then we witnessed regular LPs and 45s. That was the rage that was the norm. Restaurants still show this trend with jukeboxes and 45s on the wall. Then our tapes went from reel to reel that wasn't for daily amateur use, to compact little cassettes. Don't forget AM radio was where you heard the new music. Your parents probably had 8 track in the car. CDs came along, MP3, and streaming. The first 33 lp (vinyl) was released in 1950ish. That's a tremendous evolution. In my lifetime.
Biana! Mine as well. I still have cylinders, 78's, 8 Tracks, Cassettes, Reels, hell, even an Elcasette! DATs, ADATS... AM Radio in Philly... WFIL, WIBG... and at night from afar! CKLW! I have close to 8000 LPs and 45's. We may be old but at least we got the see the great bands LIVE!
Load More Replies...Great Grandmother came west in a covered wagon. She traveled by stagecoach, train, automobile and airplane once. Wish I was old enough to talk to her before she died I was 4 she was 99.
WHOAH! I would hope your fam has kept up and documented this history.
Load More Replies...My grandmother told me about being born before the toaster was invented and she became adept at using a computer
AND military flight fight which was also a first...unfortunately
There was a man, Angus Barbieri who didn't eat for 382 days. He was morbidly obese and lived on tea, water, soda water and coffee while visiting the hospital weekly for vitamin and electrolyte treatments. He lost close to 280 lbs and broke his fast with an egg once he met his goal weight.
Yes and no. He apparently made sure to get his vital nutrition and also medical supervision. That sound pretty safe but also, if any, the only way to do this. Don't do it on your own.
Load More Replies...Love that this is the comment right after the top comment
Load More Replies...In case you're wondering, throughout his fast he still had occasional bowel movements.
Because that's how your body gets rid of dead blood cells.
Load More Replies...While I would never, ever fat shame anyone, the trend that obesity can be healthy is quite dangerous. There's a reason the medical term is 'morbidly obese'. In everyday English, 'morbidly' means 'in a way that is regarded as disturbing or unhealthy', but in medical parlance, it means 'in a way that is indicative of disease'. (Note: Shaming is not likely to lead to a change in behavior on the part of the person shamed, but to anxiety and depression.)
While I'm not a homophobe, have you heard the one...
Load More Replies...I wonder if he put any weight back on again once he started eating again?
And when he felt like he was going to faint, did he eat a cube of cheese?
I wonder if he kept it off after going back to normal eating, or did he learn to eat intuitively.
The spotted salamander is the only vertebrate that photosynthesises.
Believe it or not but this fact gets even more interesting. The yellow spotted salamander uses photosynthesis in the embryonic stage. It does this by forming a symbiotic relationship with algae, which produces oxygen to feed the embryo as it develops and receives the embryo’s waste products and carbon dioxide. Researchers have even found algae inside the embryo’s cells!
That's not photosynthesis. the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Cool, though not technically the salamander doing the photosynthesis.
I love spotted salamanders (in German, they're called "fire salamanders"). Saw one once as a kid on the way home from school in the middle of a dirt road and was fascinated by it.
Where did this come from? This post is taken from Reddit but in the original comment, only the top sentence is there. The bottom paragraph isn't from Reddit.
there's probably more information added by BP to have a clearer statement and explain the fact more
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Greater one-horned rhino or Great Indian rhinoceros population stands at around 3,700 individuals, a significant increase from around 200 remaining at the turn of the 20th century. Strict protection and management action from Indian and Nepalese authorities and their partners are responsible for bringing the species back from the brink.The Great Indian rhinoceros is definitely a conservation success story in the making, but there are still other species of rhinoceros that are at great risk of going extinct. Only about 60 Javan and about 200 Sumatran rhinoceros are thought to exist in the wild.
From what I could find, the numbers went down significantly in the 1800's and were at the lowest in the early 1900's due to poaching. (so 20th Century). A bigger problem for them now is a lack of suitable habitat :-(
Load More Replies...I saw an episode of a British television show set in a zoo once and one of the rhinos' horns was getting too big so this zookeeper went in with a hacksaw, called the big fellow over to the bars, and proceeded to saw it down. The rhino seemed to really enjoy it. It's just like us getting a haircut.
Load More Replies...Two, I believe, but they're both female (a mother and daughter, I think). The last two males died fairly recently. It's quite tragic.
Load More Replies...a very sad state of humanity either way... shame on all of us for decimating Nature on such a ridiculous scale.. that continues with elephants and pangolins... for NO logical freaking reason except humanity is greedy, selfish and ignorant
The tongue on a woodpecker wraps around its brain as a form of soft insulation when it hammers. Then the tongue is able to extend far into the tree to retrieve bugs when it isn’t hammering.
This is implying a bit of design. It certainly APPEARS that way, but things like this always seem to have gradually come together if long periods.
I didn't take it that way at all, but as just another example of a feature that gradually evolved that benefits the ability of the animal to reproduce.
Load More Replies...I learned this when I watched the sports drama Concussion, with Will Smith.
Opossums are extremely unlikely to have rabies. They have a lower body temperature than most mammals and it makes them an unsuitable host for rabies.
Opossums are fascinating creatures, and not only because they have a high resistance to rabies. Scientists believe that they were around at least as far back as the extinction of the dinosaurs, and they are also the only type of marsupial native to the US.
Right now I have a mama opossum and her 8 babies in my old garage. They get along with my outside cats, and the babies actually play with my cats toys! The babies have watched the cats and have learned to use the litter box! Truly intelligent creatures!!!
They can’t get Lyme disease and eat 70-80% of ticks on grass. I love them.
Had one of these hiding under my car one morning leaving for work. It was early. Still dark. Dude shrieked and almost had to go change my undies.
They eat ticks by the hundreds every day. They are our friends, they look scary (like spiders or snakes) but are very important to us. Please be kind to ALL animals, not just the cute ones.
*But* They do carry PSSM which is a devastating neurological disease for horses. Every time I see a campaign to make Opossums sound like they're not a threat I need to add this.
to the ppl who dont have horses tho that little fact doesnt apply. its terrible yes but alot of ppl dont have horses so they arent a threat
Load More Replies...and they can survive lots of venomous snake bites. please don't kill them..
A second is called a second because it is the 2nd division of the hour by 60 (pars minuta secunda), the 1st division being a minute (pars minuta prima).
And secunda doesn't always mean "second," it also means "following," or even" favorable!" just sayin.
Load More Replies...That's fascinating, I've often wondered about this, but I didn't ever get round to looking it up.
I don't think most people know the meaning of "prodigal." They know the parable of The Prodigal Son and think it refers to someone that leaves and then has to come crawling back, but that's incorrect. "Prodigal" means to spend money lavishly or wastefully. The prodigal son was prodigal whether or not he ever went back to his father.
compare: child prodigy: child who is good at stuff. OR prodigious supply: a large supply.
Or prodgeny: written by someone who can't spell progeny
Load More Replies...Only by people who didn't know what the word meant. The story still has the same meaning because it mentions that he spent money lavishly anyway
Load More Replies...How much did he pay for what's goin on in that picture?
That is the son, being warmly welcomed back by his father, when he expected to be in disgrace. The painting is by Rembrandt.
Load More Replies...My parents called me the prodigal son for years because of how far away I moved from them. They were Catholic. When I told them that I was NOT the prodigal son because I never spent all my money and had to come home. That would be my little brother who moved out, fell apart, spent all his money and they paid him 3K to move home and go to community college. I'm the only kid who moved away, never came back and never once asked for or took money from them.
This is why, at least in Italy, priest prefer to call them "The prodigal Father", giving the title a more positive spin
Never heard of this! But I knew the meaning of "prodigal".
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Big Ben is the Bell not the clock or tower.
Is this really one of those that "barely anyone knows"? I thought it was common knowledge, at least if you're British.
as one of the dozens of non-British people in the world, it is not.
Load More Replies...Originally the tower was just called the Clock Tower of the Palace of Westminster (aka the Houses of Parliament) and since 2012 has been named the Elizabeth Tower.
Oh thank you. I have seen the term Ekizabeth Tower and wondered how I nissed that growing up ( spent alot of time in london) but turns out it changed since the kast time i was there ( 2009).
Load More Replies...It's common knowledge if you are British. It's occult lore if you are American.
It's the Elizabeth Tower and Big Ben is the largest of the bells in the tower.
That's why England swings has the lyric "Westminster Abbey, the tower of Big Ben"
The nuke stockpile in Washington State is guarded by trained dolphins that seek out and clamp a balloon on unfamiliar divers.
"marine mammals are equipped with a bite plate that holds a shackle that the dolphins can use to disable an intruder. "They just hit the person in the leg and it attaches around their leg and they can't pull it off until it sends a float up," Swansen told Business Insider.
So it's a big deal when they'll eventually bid us so long and thanks for all the fish
They also use sea lions. How interesting and cool. https://www.military.com/history/militarized-dolphins-protect-almost-quarter-of-us-nuclear-stockpile.html/amp
They also ring the alarm, so guys with guns show up to pop the balloon ride
Hans Zimmer was the keyboard player on "Video Killed The Radio Star"
"Video killed the radio star" was released in 1979 MTV first aired August 1st 1981
Is he otherwise noteworthy? I don't believe I've heard the name before.
He's a musician that has composed music for a lot of famous movies, such as The Lion King, the Pirates of the Caribbean series, as well as many Christopher Nolan movies.
Load More Replies...OMG - I just saw Trevor Horn of the Buggles in concert with Seal! The Buggles actually opened for Seal, although Trevor Horn was the only real Buggle. Seal's band was his backup, and then he played (guitar or bass) as part of Seal's band. Trevor Horn became a huge music producer in the 90's, and Seal was one of the artists he "discovered." It was an amazing show! I guess that the last US show is in two days (6/12), and then the tour goes international.
Two of the Buggles joined Yes when asked by Chris Squire. Mistake, Chris.
Gary Numan was born two weeks before Gary Oldman
Gary Numan is the most incredible musician I've ever heard. Props to him!!
And Gary Oldman is the most incredible actor I’ve ever seen.
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Raindrops don’t fall in the drip shape popularly conveyed. They fall in the shape of tiny parachutes or hamburger buns.
Is this true? Pretty sure myth busters did an episode where they showed the drops are round. Correct me if I’m wrong
NASA says this: As the raindrop falls, it loses that rounded shape. The raindrop becomes more like the top half of a hamburger bun. Flattened on the bottom and with a curved dome top, raindrops are anything but the classic tear shape. The reason is due to their speed falling through the atmosphere. Air flow on the bottom of the water drop is greater than the airflow at the top. At the top, small air circulation disturbances create less air pressure. The surface tension at the top allows the raindrop to remain more spherical while the bottom gets more flattened out.
Load More Replies...Per NASA: https://gpm.nasa.gov/education/articles/shape-of-a-raindrop
And the higher up the clouds that rain falls from, the more time the rain drop has to form into the parachute shape and then break up, which is why big wet drops come from lower clouds and fine misty rain comes from higher clouds. Except for the misty clouds on moors, when that's just called sky.
Before being born, two of the four chambers of a baby's heart are not used, they're actually bypassed!
There's no need to pump de-oxygenated blood to the lungs when in the womb, because the lungs aren't breathing air yet, and so are not supplying oxygen. All the oxygen comes from the umbilical cord.
So the two chambers responsible for sending blood to/from the lungs are (largely) bypassed.
Yep the bypass closes at birth, but not always.... then surgeons have to close it when it does not.
Load More Replies...My son was in intensive care for six days when born because that valve didn't open/close. It was like mostly there, but not enough to live. They put him in 100% O2 then monitored his blood levels. When his blood got back up to a certain saturation, they'd lower the concentration and wait again. That was a LONG six days.
Nature can pretty much take care of herself if we don’t f**k too much with her!
probably why a lot of babies born have heart problems before the chambers complete the closure processes
The hole is supposed to be about the size of a pencil eraser my son's was the size of quarter and I lost him at 3 day old
Thats what took my 3 day old son. The hole should be close to pencil eraser size and his was the size of a quarter.
Rabies kills around 60,000 people globally every year. To date, only 14 people worldwide have been known to recover after developing symptoms.
Rabies is as deadly as it is because it targets our central nervous system and destroys our body’s ability to perform essential functions. However, it does have a moderately long incubation period. If a bite victim is treated with the vaccine within 10 days of being bitten, they can expect to survive, but by the time symptoms appear, it’s already too late.
This is why every animal- inside or out- should be vaccinated for rabies. Folks often say," My pet is indoors only", but if the pet escapes or a bat gets in the house, the risk is there. And they can transmit it to us. It is a myth that all animals with rabies act like Cujo. Many people don't realize that the only way to test for rabies in an animal is to examine brain tissue. So if a vet has to euthanize an animal that is a rabies suspect, we have to cut off the head and send it to the lab. It is exactly as gory and traumatic as you imagine.
I am curious if any anti vaxxer will refuse a shot if they get bitten by a rabid dog.
I was thinking that as I was reading about a possible new cancer vaccine yesterday.
Load More Replies...Yes sadly patients only become symptomatic in the final, terminal stages of infection. The few survivors were usually sedated heavily and filled with potent anti viral drugs
and even then it was up to their immune systems. If their immune systems reacted and started making antibodies they had a shot, if not they were screwed no matter what drugs they got.
Load More Replies...And the fear of drinking water was crazy. I saw a video on YouTube showing a man with symptoms. It scared me quite a bit.
My oldest daughter is a vet. When she was accepted into vet school, she had to have a rabies vaccination. They would not let her in until she had one. The FIGHT we had to have with our insurance company was legendary. They refused to pay for it, even though her getting rabies would have been so much more expensive. We ended up having to pay for it ourselves. She still has to get boosters every 2 years, I believe. But now that she's a resident, they pay for it. It's considered necessary for those in the veterinary profession, obviously.
Yup. Next week the Pack and the Clowder all start their yearly appointments for exams and shots. With eight it is simpler to take two at a time.
If bit, take the shots. Have your pet take the preventative shot. Lost a great dog once to rabid raccoon. Suckage, LARGE
We are making progress, only a few years ago it was only 2 people that survived. Doctors have to put the person in a deep coma while the nervous system and body can recover
Boanthropy is a psychological disorder in which a person believes they are a cow and try to live their life as one. Medical explanations suggest late-stage syphilis as one of the causes? Cool
Grazing in the meadow all day with the other gals, watching for cars. Cool.
This comment is about syphilis not cows (putting that up front so you can choose to stop reading now if you want to). You know how in Victorian novels there are often blind characters (usually there to insert some pathos into the story and makes a change from TB). There was a high rate of blindness (also deafness and other disabilities) in babies during this time because of pregnant woman having syphilis (often infected by their husbands after their husbands visited prostitutes). Syphilis affected the brain and organs of the developing foetus.
"I've never seen a purple cow. / I never hope to see one. / But this I know anyhow. / I'd rather see than be one."
And here I thought the white bull in the picture was about Pasiphae and her.... indiscretion with the sacred bull, leading to the Minotaur.
King Nebuchadnezzar of Babylon had this, lived in fields for (7? Without checking) years and ate grass
The biblical account of King Nebuchadnezzar is probably not quite true: https://history.howstuffworks.com/history-vs-myth/nebuchadnezzar.htm
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More pigeons have war medals than horses, dogs or mules
In their defense, it is rather hard to care for a horse, dog, or mule when you’re a pigeon. A great many have helped war efforts, though.
carrier pigeons! during WW1 they carried messages back and fourth across the battlefield. there was one named cher ami (dear friend). they were once shot through the breast and leg, but still managed to deliver their message.
Just watched a TV segment about her. She was the last pigeon the lost battalion had as the Germans shot down each pigeon as it was released. Battalion was under fire from their own side and needed to get word back behind lines to have the shelling stopped. Cher Ami had a leg blown off and took shrapnel in the chest. She went down and the battalion thought all was lost. But she took flight again and made it back.
Load More Replies...Mules have always been better than any other animal in military or public sector but the breeding program is limited
More than 100k horses were killed or injured in ww1 Remember, horses did a lot of work, under conditions that are beyond heartbreaking. A pigeon was used as a messenger, horses pulled everything, almost.
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The original Red Velvet cake didn’t use food coloring. The red color was a result of a chemical reaction between vinegar and dutch cocoa powder. It also originally used Ermine Frosting, a boiled milk frosting (which is delicious)
I always assumed it was because it used beetroot as the ingredient.
I thought all red velvet cakes were chocolate. Does this mean people 'cheat' by adding food colouring?
I think it's a different type of chocolate cake, but yes some people cheat lol. The flavor comes from a lot less coca powder, and vinegar added for acidity. Once for my mom's birthday, we made a green velvet cake (her favorite color). It was an absolute mess because I was like 4 and my dad doesn't bake lol. It turned everything green. I now want to find an original red velvet cake recipe to try and get the chemical reaction! I actually looked it up and this chemical reaction comes from non alkalized coca powder. I'm sure I'll be able to find something somewhere. The first recipe that came up for the original type everyone complained that it wasn't red. I'd have to assume they didn't read the beginning that explained the reaction with the non alkalized coca powder
Load More Replies...My mom had a very old recipe called simply "red cake" that used no type of red coloring, only cocoa. It was delicious but notoriously unreliable.
https://sallysbakingaddiction.com/red-velvet-layer-cake-with-cream-cheese-frosting/ This is a great version
Load More Replies...I beg of you to try a real red velvet cake. They are so much more delicious than those bizarre food coloring chocolate cakes with cream cheese frosting.
Many species of shark have seven senses, most notably the ‘man eaters’ (I despise that term) Tiger, Bull, and Great White.
In addition to the traditional five, sharks also possess ampullae of lorenzini (gel-filled pores on their snout - think of the black freckles on a Great White) that detect electrical impulses such as spasmodic movement in water and ambient electrical fields, and the lateral line (a thin organ running down their sides) that acts as a magnetic detector, which allows the shark to orient itself in real time to the earth’s magnetic field, giving it a sense of direction akin to that of a bird.
Great Whites additionally are coated in denticles. Despite their smooth appearance, their skin is actually extremely rough and toothlike. Think of sandpaper on some serious steroids. A Great White bumping into you can actually peel layers off you like a potato peeler. That’s if they don’t give you a bite of course!
On to that, despite their fearsome reputation, Great Whites don’t care for humans as a food source. They need immense amounts of blubbery fat and meat like whales and seals can provide, we’re simply too lean for them to get much nutrition. Most attacks are down to either territory being defended, or simple mistaken identity. They’ve got terrible eyesight, so a human on a boogie board looks exactly like a seal from below. And, as they have no hands, biting is the only way they can be sure of something. It just sucks for us that that’s typically fatal.
Finally, if you ever get a moment, look up spy hopping. Sharks can and will pop their heads above water to get a lay of the land. It’s frightening to behold.
Hate the term man eaters then go on to say "If they don't give you a bite" as if it's common, then explain it's not.
Well, if you're close enough to a shark to touch it, there's a good chance it could bite you.
Load More Replies...I've occasionally wondered why wetsuits tend to be black. If anything is going to make a human diver look more like a seal to a shark, it's that. Make them out of a primary colour; anything but black. You're basically cosplaying as a seal when you put a black wetsuit on and enter the water.
Humans have, at a minimum, 9 senses. John’s Hopkins University lays them out pretty well here and explains that there are many yet to be categorized https://www.press.jhu.edu/newsroom/how-many-senses-do-we-have
I'd never heard anyone group those types of sharks together as "the man eaters". I wonder why you used it if you hate the term.
Only certain species are known to attack humans, and those ones fall within that group. So it’s reasonable to say people refer to them as man-eaters.
Load More Replies...The "man eaters" are just food for the orca...the actual top predator in the oceans.
i find spy hopping cute. their little heads poking out just sayin "hi"
If you roll a shark over they kind of get hypnotised/paralysed. It's hilarious, although I'm not sure if the shark likes it. But they hopefully don't care.
The orcas do that to the sharks before eating their livers.
Load More Replies...Akshually... Humans have a lot more than 5 senses. Somewhere around 20 is said.
Don't know why you've been downvoted, this is absolutely true. We have a sense of balance, a sense of pain, senses for hunger and thirst, a sense of bodily/spatial orientation. There are a variety of internal sense beyond hunger and thirst. I think a fair enumeration of our senses is, as you note, in the low 20's. https://en.wikipedia.org/wiki/Sense
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The girl who voiced Lilo in Lilo and Stitch also played Samara in The Ring, both released in the same year (2002).
Daviegh Chase (Lilo and Samira) also voiced Chihiro/Sen in the English dub of the movie Spirited Away (Studio Ghibli).
IMHO, the only good dub that Disney/Pixar did of a Studio Ghibli movie along with Ponyo by the Sea and Howl's Moving Castle. And maybe The Cat's Return. YMMV.
Load More Replies...She is also in the HBO show Big Love. Now we know three things about her
She also voiced Chihiro in Miyazaki's Spirited Away, also in 2002.
the middle name of Michael J. Fox is Andrew.
The rumor in the 1980’s was that he changed it so the teen magazines couldn't go for the obvious "Michael, A Fox!"
According to Wikipedia: "when he registered with the Screen Actors Guild, which requires unique registration names, he discovered that Michael Fox, a veteran character actor, was already registered under that name. Disliking the way either 'Michael A. Fox' or his middle name sounded, he adopted the middle initial "J." as a tribute to actor Michael J. Pollard."
Load More Replies...Hahahah I read about this a looong time ago (hey, he's from here, how can we not love our guy?) Apparently in an interview he told the story as... when he was starting out, he figured the middle initial was a good way to make his name distinctive... but that "Michael A Fox" sounded really pretentious and vain (I mean... we're not Johnny Bravo here.. "I'm such a FOX...!) ... so.... he chose another initial.
Hahaha I have a Jewish friend named Andrew, his handle in a couple online places is Anjew
Load More Replies...I have several of Michael Pollan's books. He helped me change my diet and improve my health.
Load More Replies...In interviews he said he had no middle name, and the J was just made up.
Concrete can set underwater.
yes, because the reaction is silicate plus alumnium hydroxide catalysed by water to give aluminium silicate. Something like that. Point is the water is just a catalyst. It's not mud - a watery suspension of silicate particles. Mudbricks are made runny by water, and then dry out (loses the water) to the sun via evaporation, leaving the silicates in close proximity/bonded. Whereas concrete is an actual chemical reaction.
My eye got blurry for a second and I read "underwear". That was confusing.
Perhaps not a good idea to soak your underwear in concrete that hasn't set, particularly before donning it.
Load More Replies...Concrete cures better and stronger underwater. Which is why it is kept wet for as long as possible when curing out of water, by water spray, draping with canvas which is hosed down, or having small earth dams placed on top into which a shallow pool of water is kept topped up for at least 7 days. Some advanced techniques involve a metal cast that is constantly supplied with water too.
Romans found that incorporating volcanic ash into their concrete it would continue to harden underwater for decades.
That's because concrete cures, more than dries. It's a chemical process. Of course, you need a particular formula for concrete that sets underwater.
Animals and other creatures each perceive time in different ways based on their Critical flicker frequency which is almost like their minds refresh rate, dogs for example perceive time as being slower than humans do and it's perceived as a little faster by cats.
This model can be used to describe our perception of time, but most directly, it is a term that reflects how our brains process visual information. A creature’s critical flicker frequency is the threshold at which a rapidly flashing light appears to them as a steadily shining light.
"What do you mean, I knocked the glass off the table?! Dude, that was like a year ago. Get over it already."
Load More Replies...I’m guessing this is why every time I come back from the store my dog acts like it’s been years since he saw me and he thought he was going to starve.
Nah, it's the opposite. And that is caused by a mix of separation anxiety and simple joy to see you again.
Load More Replies...This is why you rarely run over a pigeon while driving. Unless you're George Costanza.
This is humans projecting themselves on animals and thinking we know what they do. We need to stop kidding ourselves. We don’t know s**t!
We know a lot about different species' critical flicker fusion frequencies. Whether it affects subjective perceptions of the passage of time is not known. Critical Flicker Fusion Frequency: A Narrative Review - PMC https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8537539/ Does critical flicker-fusion frequency track the subjective experience of time? — Rethink Priorities https://rethinkpriorities.org/publications/does-critical-flicker-fusion-frequency-track-the-subjective-experience-of-time
Load More Replies...THAT's why my cat starts pestering me for evening treats earlier than he should!
No one has found a centipede with exactly 100 legs, because all centipedes discovered have an odd number of pairs of legs they have found centipedes with 98(49 pairs) and 102(51 pairs) but never exactly 100.
Centipedes can have between 15 and 177 pairs of legs depending on the species (average 35 pairs), and millipedes can have up to 200 pairs. The main differences are that centipedes have one pair of legs on each segment of their bodies- millipedes have two. Also, centipedes are voracious predators with venonous toesies that want to murder you.
Watch a video of one attacking and eating a mouse.
Load More Replies...That's very much in line with the centipede disposition. Seriously, spiders are great, eff centipedes.
Load More Replies...And a 100 legged human centipede is technically pretty hard to achieve as it would require the volunteering of 25 people.
There are still new species of centipedes being discovered. I think there was one in southeast Asia discovered in the last 5 years that spends as much time in water as on land, and as quick in the water as centipedes are on land. Nightmare fuel, really.
Load More Replies...The centipede was quite content until the crow in fun, asked "pray which leg comes after which?" and worked his mind to such a pitch that he lay distracted in a ditch, considering how to run.
Millipedes are cool. They're a placid little bug that just happens to have a lot of legs. Some of them do smell funny though. Centipedes on the other hand are made of spite and rage.
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The Earth's rotation is slowing down, and we soon will have more than 24 hours in a day (well, soon, geologically speaking...).
As the Earth slows and extends the length of its days, we can consider what a “day” looks like on other planets in our solar system. The shortest is Jupiter at a zippy 10 hours and the longest is Venus at a painfully slow 5,832 hours. The closest day to hours is on Mars (25 hours).
We already have more than 24 hours in a day. This is why we have to add an extra day to the calendar every 4 years on leap year.
Well, no. That's because there's more or less 365.25 days in a year. The average day over the last year actually lasted a few tenths of microseconds shorter than 24 hours.
Load More Replies...I read a news article only a few months ago that said that earth's rotation is speeding up and we've lost something like 1 second in the past year? Nothing too big at this pint but concerning to scientists. So I wonder which is true...that the rotation is speeding up or slowing down??
The Earth's rotation speed "wobbles". Some good info here: https://www.timeanddate.com/time/earth-rotation.html Ultimately though, this entry is correct, the Earth's rotation, on average, is (very, very gradually) slowing down.
Load More Replies...if the Earth's rotation slows down, won't that affect the effects of gravity?
Companies and politics: Great, then folks can work even longer! :D
What? No, time is not construct, we don't imagine it. It is subjective to the observer, but in no way is it made from our minds.
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Of all the US states, Maine is the closest to Africa. Seriously look at a globe, not just that flat oval map you saw in every classroom growing up. Africa is further north than you think, and Maine is further east than you think.
I'd have liked a globe picture where I could see both Maine and Africa.
And Houston, Texas is farther west than the Galapagos Islands, and farther south than Cairo, Egypt(!)
A quarter has 119 ridges.
118 on a dime.
How many of you noticed the front of the US quarter was redesigned last year? Washington now faces the other direction.
The British trained seagulls to poo on the periscopes of enemy submarines before they realised seagulls can’t fly that far out to sea
Yes, I thought birds lacked an a**l sphincter and are therefore incontinent rendering them unable to be toilet trained (at least in ducks).
Load More Replies...A couple interesting science facts that lead to in interesting likely somewhat obscure fact about an old kitchen appliance. (Although I did learn this from a YouTube video which currently has 1.6M views, so at least that many other people probably know it) When you cook something in boiling water, is always cooks at the boiling temperature of water no matter how long it's in there. Once water begins to boil any additional heat you apply goes to converting the water to steam. You can't actually get it any hotter. The hotter you make the fire the faster it boils off, but the liquid water never gets above 212F at sea level. If you heat a magnetic metal up it will eventually lose its magnetism. If it's an actual magnet, you just permanently un-magnet-ed it. If it's a normal piece of metal though it will just lose the ability to stick to a magnet and that property will return when it cools down. The exact temperature this happens at varies depending on the metal. Combine these facts together and you can make a nearly perfect automatic rice cooker. Basically you take metal pot and put the appropriate ratio of rice and water in it and set it in the cooker. The cooker has a heating element of a known wattage that heats up and boils the water. The pot will sit right at the boiling temperature of water as long as liquid water remains because the water will be absorbing all the excess energy to turn to steam. As long as you followed directions the amount of time that water will take to boil off is very predictable with the fixed heating element. That will be the appropriate time to cook the matching amount of rice. Once the water has boiled off the pot will quickly begin to heat up. Unchecked this would quickly burn and ruin the rice. However, under the metal pot of the cooker is a button that is being pulled down by a spring but is held against the pot by magnetism from an attached permanent magnet. The button is made from a metal that loses its magnetism just above the boiling point of water. Once all the water boils off the pot starts to heat up and quickly demags the button which gets pulled by the spring and automatically turns off the heat. Perfectly cooked rice through physics. EDIT: [The video I mentioned](https://youtu.be/RSTNhvDGbYI)
If you are heating a pot from below, then the surface of the pot will be higher than the boiling point of water and so will any food that is contact with it. This is why cooks use a Bain-Marie to control the temperature. A bowl sits over a pan of water. The water can only reach 100C (as described above) and so the bottom of the bowl can only reach 100C and no more.
Also why poaching is a better method to cook things like delicate fish. In the oven or a frying pan the temperature is going to get above 100C which will easily lead to overcookung, but cooking in liquid ensures the temperature of the item to be cooked never gets above 100C.
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Pill bugs are crustaceans, like crabs or lobsters, that’s why they are always in the dampest places.
admit it. yall called them rolly pollys when you were little. we all did it
Load More Replies...Also, they're completely harmless and they're great at depolluting soils, so just let them be and do their thing.
I have always called them potato bugs.. don't ask me why it doesn't make sense to me either
They’re also called roly polys thanks to their ability to defend themselves by rolling into balls in self-defense!
Being in a “higher tax bracket” does not make your take home pay less. That’s not how taxes work.
In Germany you are fu🔞ed financally, the lower your tax bracket is.....for married couples, the addition of the tax brackets must always be 8 and nobody knows the reason for this....
Not true: the worst bracket is six and the addition of the brackets doesn't need to be 8
Load More Replies...Maybe in the US; in my country it is quite possible to get a little increase in salary (for government officials, in this particular case), which makes you fall into higher tax bracket and end up with less money, happened to people I know.
Wow, donvote for this? I guess ya'll are familiar with tax laws in my country although half of you probably never heard of it. And know better than me about things that have actually happened.
Load More Replies...Doesn't it get taxed for the part over the threshold?
Load More Replies...The poem “Ozymandias” by Percy Shelley is based off a statue brought from eygpt by the French, and passed onto the British. The very same statue is in the British museum on full display. Another cool fact about that statue is all the damage done to it was done *after* it was discovered. They just had such a hard time moving it.
I met a traveler from an antique lad, who said “Two vast and trunkless legs of stone stand in the desert”.
The Jews were expelled from Spain in the 1400s. No Jewish children were born again in Spain until 1966.
1492 to be exact. The fall of Granada, marking the ending of the Reconquista, thus providing the money for Columbus to sail. And the Alhambra decree, expelling all Jews or making them convert to Christianity.
1492 provided one of the most impactful coincidences in world history. The year the Spanish find a new land is in the same year they have an experienced fighting force with no one left to fight.
Load More Replies...What problem do various cultures/people have with Jews? Serious question. They seem to have a tormented history.
The Catholic Church (ala the only christian church up until the Tudor Dynasty) has a long history of othering Jews. Christianity _was_ a Jewish sect. If you read John you can see the separation beginning in a significant way. So, the Jews have a long history of being kicked out of countries.
Load More Replies...Religion is such a scar on this world’s history. Probably get downvoted, but open your eyes and it is so true!
They were expelled from, then (a) hundred(s) of years later, welcomed back, then expelled, over and over from multiple countries for centuries. It’s called The Jewish Diaspora. A shameful chapter in history, containing pogrom after pogrom, the Spanish Inquisition, the Holocaust, and other atrocities.
The Jews were kicked out of England in 1290 by Edward I because he owed them too much money to pay back. He then invited the Lombards from Italy in to take their place. The Jews were welcomed back in 1656 by Oliver Cromwell of all people, as the country was pretty much veering on the edge of being bankrupt.
an old school mini is the size of a blue whale's heart. And you can fit humans in its arteries. It's big.
and despite this, the largest object a blue whale can swallow is a grapefruit.
Since 1969, there have been more Popes (5) than head coaches of the Pittsburgh Steelers (3).
Since 1969 there have been more Popes (5) than marriages I have had (1)
And you alone had more marriages (1) than all the popes since 1969 combined (0).
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The same computer software used for the CGI in jurassic park was used to make the sprites for donkey kong country
Sara Josepha Hale is the reason for the myth and celebration of Thanksgiving in the United States. She asked President Lincoln in 1863 to champion a holiday that would bring families together in the wake of the U.S. Civil War. The goal was to get people back in each others company to celebrate the nation. She then helped perpetuate a myth of "The First Thanksgiving" to remind the country of how the colonists persevered with the help of indigenous peoples. Seven years later, other Federal Holidays would officially be recognized throughout the country.
My god people…look and actually research the roots of most Judeo-Christian holidays and they are masquerades for ancient, more paganistic celebrations. Does anybody read history anymore?
the problem is that they're teaching it in school. It's a problem of teaching wrong information, and kids taking it as true because that's what we expect. It's pretty frustrating
Load More Replies...This is complete and utter büllshit according to me and literally every reputable source of historical information.
More like this, please! But please ensure you've vetted the 'facts' before you post them. The one about Thanksgiving is nonsense.
More like this, please! But please ensure you've vetted the 'facts' before you post them. The one about Thanksgiving is nonsense.
