Turning Spheres Into Squares—Stereographic Projection

In this video I show you how stereographic projection works and how you can map spheres onto 2d planes and even make some really neat photographs!

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*Any experiment you try is at YOUR OWN RISK. The Action Lab assumes no responsibility for any injury if you attempt anything you see in this video or on The Action Lab channel.

[RamiSlicer]

This channel and Kurzgesagt are definitely my favorite science channels. They're just so calm!

[justsomeonewithanezukopfp]

My brain cells are increasing
At the same time it's decreasing

[ashryashukla]

I am in love with this channel ...hoping for the 5 million reach of this channel...
Love from Uttarakhand India ❤️❤️❤️❤️

[ClipsAhoy]

Action lab: turning a circle into a square.

Me: OK, now he can manipulate the matter of space tiMe and the laws of geometry itself.

[YGOrochi]

TheActionLab: remember, we LIVE on a 3D object...

Flat Earthers: *TRIGGERED!!!*

[vinayakupadhyay]

I have a question that why do atoms of elements contain neutrons if they can exist without them. For ex- Ordinary hydrogem atom

[fundemort]

Mark Rober: I make very cool, very fun engineering and research videos.
Action Lab: I make little cool, little fun, mind-blowing science and explanation videos.

[blazebet]

Interviewer: where did you complete your graduation?
Me: university of action lab

[raymitchell]

Is the reason the Action Lab kits are back is that the shaving cream experiment is now possible since Mr. Action is no longer shaving (as evidenced by his beard and mustache) and therefore his (rather large) personal supply of shaving cream is now available for science? (lol) Hey, Just kidding I'm enjoying your videos... A class assignment was to write a ray-tracer in my graduate computer science graphics course way back when, and it covered projections, it was neat to hear you revisit some of the subject matter.

[quahntasy]

*Probably the best experiments channel on YouTube right now*

[diabolicallink]

This is such a cool explanation of these. I use stereographs all the time in my geology classes and I feel like this would have helped a lot when I was first introduced to stereographic projections

[nevada]

This is one of my favorite video on your youtube channel noww

[lnterest-ing]

On the topic of map projections, 1:55, take a look at the Dymaxion Projection. It keeps proportions and scale roughly accurate by sacrificing location. it cuts the earth along bodies of water to unfold it into a flat plane

[Amira_Phoenix]

on the 2d map the poles are actually stretched over all the un an down sides. it brings their value to infinity which is what dividing by zero actually means.

[dsky]

This is a brilliant piece of illustration to explain this information.

[zantar]

Stereo graphic projection.. Awesome stuff again dude

[animeshvishwakarma]

I LOVED THE CONCEPT OF YOUR VACUUM CHAMBER AND I AM GONNA MAKE ONE FOR ME.
THANK YOU :)

[JustinY.]

So this is how Nasa fit a square peg into a circular hole

[paulj]

*Next video: What happens if you put COVID-19 in a vacuum chamber...*

[dimitri_tsm]

Action Lab is full of Bite Sizes Mini-Experiments that is perfect to watch while having dinner.