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Curiosity is a powerful force that drives humans to explore the world around us. It's the reason why we ask questions and venture into the unknown. And sometimes, it leads us to break or open things just to see what's inside, too.

In this list, Bored Panda gathered some of the most surprising and intriguing cross-sections that we could find. From the inside of a bowling ball to the inner workings of a cactus, these pictures are sure to stir up your interest. We've even "cut up" a mechanical calculator to show its complex mechanisms!

So sit back, relax, and continue scrolling to enjoy this fascinating journey through the unexpected contents of everyday objects.

#1

Picked Up An Old Clam Beside A Lake In South Australia And Found A Small Colony Of Plants Inside, Living Off Of The Nutrients

Picked Up An Old Clam Beside A Lake In South Australia And Found A Small Colony Of Plants Inside, Living Off Of The Nutrients

gNomad88 Report

#2

My Dog Finally Finished Her Favorite Toy Tonight, Only To Find There Was A Smaller, Even More Squeaky Toy Inside

My Dog Finally Finished Her Favorite Toy Tonight, Only To Find There Was A Smaller, Even More Squeaky Toy Inside

fluorescent_noir Report

The process of taking something apart to understand how it works is called reverse engineering, and there are many reasons why someone (or a company) might do it.

You can reverse engineer consumer products, software, mechanical parts, pieces of technology, or even architectural structures.

When companies employ this practice, engineers usually do it without the original blueprints. While there are many ways to reverse engineer a product, a popular method is to take apart a smaller part of a product and analyze it until you get a thorough understanding of it.

#3

Cross-Section Of Several Different Cables

Cross-Section Of Several Different Cables

CHooTZ Report

#4

My Firewood Had A Pine Cone Inside The Tree

My Firewood Had A Pine Cone Inside The Tree

nzscion Report

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RavenTheCat
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

The cone is likely older then the tree. And the tree grew around it more then likely due to the sap causing it to stick

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#5

The Squeaker From Inside Her Dog Toy Has Declared Her The Winner

The Squeaker From Inside Her Dog Toy Has Declared Her The Winner

MissShananigansbong Report

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Arunika R.
Community Member
1 year ago (edited) DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

It would be amazing to have a collection of these over the years

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You can deconstruct (and reconstruct) things in many different areas. Jazz musicians can take apart a song and put the ideas together in a new improvisation of the original. Writers might look at a well-known story and retell it in a new, fresh way.

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The musical West Side Story, for example, was based on the storyline from Shakespeare’s Romeo and Juliet, and James Joyce’s Ulysses is a modern-day retelling of The Odyssey by Homer.

#6

The Inside Of This Guitar Looks Like A Really Fancy Apartment

The Inside Of This Guitar Looks Like A Really Fancy Apartment

VarneyKing Report

#7

The Wine I Ordered Online Came With A Tiny Set Of Dice Packaged Inside A Hollow Cork

The Wine I Ordered Online Came With A Tiny Set Of Dice Packaged Inside A Hollow Cork

Calliope719 Report

#8

Had To Cut A Sunflower In Half Today At Work, Thought It Might Be Appreciated Here

Had To Cut A Sunflower In Half Today At Work, Thought It Might Be Appreciated Here

Charissh Report

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#9

The Inside Of A Cactus

The Inside Of A Cactus

Zavalac03 Report

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Arunika R.
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

If I'm not wrong, these vessels are used to store and transport water. It's called xylem and it's present in every plant, but it's stronger and larger in cacti because of dry climate.

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In business, updating older products for current use is also one of the main reasons why people turn to reverse engineering. It could include rebuilding:

  • An old or outdated product;
  • An expensive product using cheaper or more readily available materials;
  • A product that uses mechanical parts that no longer exist;
  • Another company's product to learn about it;
  • Reverse engineering helps engineers understand the product's function, which they can use to create an effective updated version that still meets user requirements.
#10

A Cross-Section Of A Professional Painter's Palette (6 Months Deep)

A Cross-Section Of A Professional Painter's Palette (6 Months Deep)

wWOVOWw Report

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#11

Inside Of A Mechanical Calculator

Inside Of A Mechanical Calculator

reddit.com Report

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Arunika R.
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

It's such a wonder humans could think about creating beauties like this and actually make it function

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#12

The Tigers On These Socks Look Like House Cats When Turned Inside Out

The Tigers On These Socks Look Like House Cats When Turned Inside Out

The_RockObama Report

Reverse engineering can also help repair products that are already on the market. This process can be especially helpful if nobody is sure what's causing the issue. Engineers may also take these products apart to see if there are any ways to fix them or improve functionality with new technology or smarter design. For example, a company may learn that newly available technology can help improve glitching issues within a software application. Through the reverse engineering process, they may also learn that there's a more efficient way to create the product.

#14

Cross-Section Of Our Painter’s 1-Year-Old Stir Stick

Cross-Section Of Our Painter’s 1-Year-Old Stir Stick

infernal2ss Report

#16

My Sister Found This Tiny Egg Inside Her Hard-Boiled Egg

My Sister Found This Tiny Egg Inside Her Hard-Boiled Egg

galafem Report

#17

Bit Into A Wonderful Surprise Today And Learned About The Delicious Lucy Glo Apple. The Best Apple I Have Ever Had

Bit Into A Wonderful Surprise Today And Learned About The Delicious Lucy Glo Apple. The Best Apple I Have Ever Had

SnowgogalAlaska Report

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As writer Eric Braun pointed out, deconstruction also plays a part in teaching something to someone else. In order to pass down the knowledge, you need to understand its components and how they fit together. This comes from focused learning on each aspect of the topic. If a student does not understand something and has a question, the teacher will not be able to convey the topic if they cannot answer it.

#18

The Inside Of My Red Onion Looks Like A Lotus Flower

The Inside Of My Red Onion Looks Like A Lotus Flower

Ban_Pending Report

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NickTheDuck
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Black lotus 0 Mono artifact adds three mana of one color of your choice to your mana pool, then is discarded. tapping this artifact can be played as an interrupt.

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#19

This Is A Tree Burning From The Inside In Oregon, USA. Don’t Let The Rain Fool You

This Is A Tree Burning From The Inside In Oregon, USA. Don’t Let The Rain Fool You

Pyrovixen Report

#20

The Inside Of My Inflatable Air Mattress

The Inside Of My Inflatable Air Mattress

-who_knows- Report

As you can see, you can learn a great deal by taking things apart. However, if you decide to do it, don't forget to take pics and share them with the rest of us!

For more similar "lessons", fire up Bored Panda's earlier publications 30 Photos Of Objects Cut In Half That Reveal The Unseen Side Of Things and 30 Times People Broke Or Opened Things And Were Surprised By What They Found Inside.

#22

I Cut Into A Cantaloupe And The Inside Was Square

I Cut Into A Cantaloupe And The Inside Was Square

alisonj143 Report

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#23

This Cedar Wood That I Was Cutting Had Purple Inside

This Cedar Wood That I Was Cutting Had Purple Inside

Finn1118 Report

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JoMeBee
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Too bad it was cut to firewood size. I bet some wood crafters would have loved using this...

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#24

Cross-Section Of A Banana Tree Trunk

Cross-Section Of A Banana Tree Trunk

RyanSmith Report

#26

There Was A Billiard Ball Inside Of My Bocce Ball

There Was A Billiard Ball Inside Of My Bocce Ball

TheRealPinballWizard Report

#27

Inside Of A CT Scanner Undergoing Maintenance

Inside Of A CT Scanner Undergoing Maintenance

radsman Report

#29

Opened Up A Lighter And There Was Just Another Lighter Inside

Opened Up A Lighter And There Was Just Another Lighter Inside

clumsyinsomniac Report

#30

Steel Core Inside A "Rubber" Bullet

Steel Core Inside A "Rubber" Bullet

I_walked_east Report

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Roger9er
Community Member
1 year ago (edited) DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

That's why they hurt like f*ck. The rubber coating just prevents it from penetrating the skin.

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#31

Cross-Section Of A Poppy Flower Before Blooming

Cross-Section Of A Poppy Flower Before Blooming

Mush4Brains- Report

#32

Cross-Section Of A Whale Rib

Cross-Section Of A Whale Rib

fjbruzr Report

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Roger9er
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Their bones are not as heavy as I thought. They're like bird bones, full of air pockets.

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#33

There Was A Bag Of Tiny Dice Inside My Bar Of Soap

There Was A Bag Of Tiny Dice Inside My Bar Of Soap

joekriv Report

#35

Manual Focus Camera Lens

Manual Focus Camera Lens

DerB_23 Report

#36

The Stacked Layers Of Anodes And Cathodes Inside Of A Duracell Battery

The Stacked Layers Of Anodes And Cathodes Inside Of A Duracell Battery

9ShadesLeft Report

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mcborge1
Community Member
12 months ago (edited) DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

A lot of 9v batteries just have six AAAA batteries inside!

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#37

A Bowling Ball With Its Inside Exposed. I Found In The Woods

A Bowling Ball With Its Inside Exposed. I Found In The Woods

Imthasupa Report

#38

Repurposed. Kid's Halloween Snap-On Bracelet Cut Opened, Is Actually A Tape Measure

Repurposed. Kid's Halloween Snap-On Bracelet Cut Opened, Is Actually A Tape Measure

jrosati1 Report

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Becky Samuel
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

This type were banned years ago because they're so dangerous. That metal tape measure can slash right through a child's delicate wrist with catastrophic results.

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#39

The Insides Of A Movie Theater Screen

The Insides Of A Movie Theater Screen

zackit Report

#40

The Inside Of A Fire Alarm Is Just A Simple Switch

The Inside Of A Fire Alarm Is Just A Simple Switch

Silentwisdom91 Report

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Giles McArdell
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I think the point here is to be consistent - older alarm switches would have pulled a heavier or more complex mechanism, the alarm switch has to remain easily identifiable however so while the technology got simpler the switch itself needs to stay the same.

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#41

Pulled A Paper Wasp Nest From The Corner Of My Shed And It Left A Perfect Cross-Section

Pulled A Paper Wasp Nest From The Corner Of My Shed And It Left A Perfect Cross-Section

bezododo Report

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#43

The Die From The Inside Of A Magic 8-Ball

The Die From The Inside Of A Magic 8-Ball

MC_USS_Valdez Report

#44

What's Inside The Breast Implant?

What's Inside The Breast Implant?

KAMINSKYI Report

#46

The Other Side Of A Fast Food Soda Fountain

The Other Side Of A Fast Food Soda Fountain

trashd0gs Report

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Spocks's Mom
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I worked at Sonic for quite a while when I was younger. This is definitely what it looks like.

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Sally Signup
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Those bags of syrup are heavy! I used to change those at the movie theater when I was 19.

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Lolly Gagger
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Oooooo - that brought back 25 year old memories! I can smell that room!

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Tony James
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Quick tip: the lines connecting the syrup to the carbonation unit are almost never cleaned unless you have a manager who is absolutely about doing it by the book. It takes forever to do it properly.

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Brandon Collinsworth
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Interesting to see this hasn't changed any since I worked with them 20 years ago, I guess the technology has peaked.

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David
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Are the boxes common now? It use to be metal cylinders for the syrup.

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WFH Forever
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Gen X here. I used to wrestle 2 foot tall steel canisters for the syrups in the 80s at McDonalds. Those look light by comparison.

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kitties
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Now I understand why the workers are always so reluctant to change it out when a customer complains the drink is out of syrup. I never understood the big deal. The more you know 👍

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Anna Lundquist
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Changed a lot of these over the years I worked in a restaurant the smell of that sugary syrup though, yuck!

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Steve Robert
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Reminds me of a Futurama episode where the #1 drink was made from the excrement of an alien for Ma's corporation.

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SkekVi
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Oh I remember having to change these out at Disneyland. They're SUPER heavy!!! XD

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zgillet
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I thought this was pretty common knowledge... who didn't work in ANY food service gig growing up?

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Mia G
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Europeans just to give an example. We have more restaurants and bars than in the USA where you are more used to eat and work at fast food chains I think

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Rae Ramirez
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I hate those freaking boxes!! They weigh like 50 pounds each!! it seems that every time that I have to change one of the beverages it’s the box on the top shelf!!

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Ronnie Cutshall
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Just think most employees ket those hose fall on the floor while changing. You have been warned

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Behnjamin
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

These things are the worst thing to replace! The nozzles are always sticky from the syrup!

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Frances Pitchounetta
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

That's why you should avoid taking fountain sodas in restaurants. As the sugar from these boxes accumulates in the red neck of the fountains, it must be cleaned with really hot water. But SURPRISE! Not all restaurants do! đŸ˜ŁđŸ˜–đŸ€ą

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Stckynote
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

took an acrylic nail off with a dr pepper bag once. never changed the dr pepper again!

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Sara Harvilla
Community Member
11 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

They used to be metal canisters. I hope this is less painful to deal with.

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Mya Lugar
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Go ahead and disconnect your tubes...you WILL NOT DIE!!

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Shaunn Munn
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I have changed out scores of these. Preferred the diet versions because sugar weighs waaay more! Also sanitized them, which was per *x* number of boxes. To change out you just remove safety cap on new box and screw on the hose, after switching boxes. Not fun trying to do so without first nesting new box in its spot.

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MygrandsonscallmeNia
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Back in 1983-84, I worked for a Taco Bell, and McDonald's. We had these Huge air tanks, and canisters for pop. They weighed up to 50 pounds each! Whenever, I was asked to change them out, I hated it! They were pressurized too! I had the hardest time hooking them up ...

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Sandra Llewelyn
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Horrible things, really heavy and if the seal goes it's a nasty sticky mess

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Cybele Spanjaard
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

All come in plastic airlocked bags in boxes like boxed wine.... not even barrels like pub beer

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mysterious(all pronouns)
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Yup, this is legit. I worked concessions a few times at Lambeu Field. Much less variety though.

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Melissa Hamed
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

It's hooked with a large large carbonated water tank. So they go in together. This is just very thick syrup.

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Kraneia The Dancing Dryad
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

The "freestyle" coke ones have the syrup concentrate packaged in plastic canisters. It's like replacing an ink cartridge in a printer.

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Dylan
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I used to change these at McDonald's. One time, somehow, there was a big hole in a box of Dr. Pepper syrup. It got all over the floor and because of that, the dry stock room reeked of purfume-y Dr. Pepper for about two months.

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Nimitz
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

BIB. Bag in a box. Every restaurant and convenience store with fountain soda uses them. Just gotta keep the nozzles sanitized and occasionally flush out the lines and you're good to go

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Dee
Community Member
12 months ago (edited) DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

They used to be canisters back in the day. 😄

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Joeshar
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

You drink filtered tab water + concentrated stuff (cola, fanta, sprite etc) + co2 coming from a tank = mixed in correct amounts and ready to drink

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Cassidy Moore
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

They are so heavy to put on the top and annoying to open, also sticky

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D'oh Rae is Me
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

If you peek in the drive through windows you can sometimes see these.

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karen Young
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Better than the big metal canisters they used to have. That was a chore.

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Sunny Day
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

It used to come in big metal canisters, like an oxygen tank.

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Rick Seiden
Community Member
12 months ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I've changed these out before. This makes me wonder how those new Coke machines work with so many flavors and no way for the tubes to get back to an area like this.

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#47

The Inside Of This Golf Ball Looks Like A Boiled Egg

The Inside Of This Golf Ball Looks Like A Boiled Egg

EndersGame_Reviewer Report

#48

Accidentally Cut Open A Cheap Kid's Baseball With My Lawn Mower

Accidentally Cut Open A Cheap Kid's Baseball With My Lawn Mower

Jamchampnate2000 Report

#49

The Inside Of An IKEA Desk Top

The Inside Of An IKEA Desk Top

Insanim8er Report

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Arunika R.
Community Member
1 year ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Fun fact: this structure allows almost the same strength if the desk was fully filled and uses a lot less material! It's used in most cardboards.

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#50

Inside Of The Dinosaur's Bone

Inside Of The Dinosaur's Bone

Proteon Report

Note: this post originally had 127 images. It’s been shortened to the top 50 images based on user votes.