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Euler's Disk: (best with sound on) this toy exhibits the motion of a “sprolling” coin, a motion that combines spinning and rolling. Designed with a large mass and very smooth edge, this device takes close to 3 minutes to come to rest- and amazingly, the contact point between the disk and the mirror can reach a speed of more that 200 mph! This video catches the first and last parts of this 2 minute and 42 second run, with two cuts to 240fps slow motion to show the curious motion. Watch the end with the sound on! ➡️ Follow the link in my profile for info on where buy this and other amazing items featured here on @physicsfun #Euler #EulersDisk #spinning #physics #physicstoy #angularmomentum #dissipative #precession #sprolling #precessionrate #spinning #spinningtop #rollingfriction #science #scienceisawesome

Comments

the_chill_pill_

One of my fave

sufyra5445

خیلی جالبه

xblacksurfq

@physicsfun If the mass increases does the maximum velocity between the mirror and the disk increase?

joey1andonlyyy

@http.milkbun.png it just really got me going 😂

itssuperheaven

Where EDM artists get their samples

rileylatus

this would be a pretty eyeshadow

aint_i_anti

@__monicaaa5

_alh85

@clogand isn’t this what you got?

paegr

Ain’t that my nigga Tim

gib3rt

Going through this whole page @caitlyn_delgado_

jjjjjonathannnnn

This almost gave me a seizure

krisannds

I wanted to thank you because I bought this and other goodies-ooze tube and hand boiler to name a few-for my brother who likes physics toys and this account was like a wish list sent from the gods.

mariahpaolino

I thought this was an eyeshadow tin lol

djbrady89

How would you calculate speed for something like that?

turmalinesa

@_luisagrajales

sydneyorcutt

Its going to explode or some shit lmao

jake_brake85

Where can I buy one?

arifrhnhkm

Ooooooooo..k

oinkay

@duffy.p.weber there ya go! sprolling!!!