How to make your own Magic Rollback Can - Long Version

For a shorter, better version, click here: http://www.youtube.com/watch?v=3BfQ-etVywU

The rollback can is a simple and fun toy. Give it a push and it rolls right back to you! Learn how to build your own in only a few minutes with readily available household items.
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How it works:
The weight pulls down on the rubber band. As the can, rolls, the rubber band becomes twisted and stores energy. The more it rolls, the more energy is stored, all the while slowing down the can. When it stops, the energy stored in the rubber band gets transfered back to the can. And that's why it rolls back.

You can also try shaking the can in a circular motion to that the rubber band becomes twisted, and then letting it roll.
If your design is good enough, it might even roll up hill!

Comment, rate, share and enjoy!

PS: Sorry for the robot-sounding voice. :p

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• roll
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[ADUDEPERRY]

you just saved me i had this assignment do toomorrow nd this helped so much i was done in 2 minutes

[check86]

@ADUDEPERRY Glad I could help!

[jdub99999]

Cool. Thanks alot. Did this with my son for school experiment. Works great!! We used an oatmeal container. Perfect

[KaTyBmuSic11]

whats a can that has a replacable lid?? i dont mean what is it i mean what product would have a replacable lid????

[UserIsAnFBIAgent]

Wicked, I'm doing this today, ... NICE.

[23Jasprado23]

how do u make the roller roll longer

[cnalty]

thank god for the help!!! my science assignment is due tomorrow and this helped a lot

[cotorrana]

hi, Mrs. check86.... mi pastor ask me to make something like this but i din't have a clue now that i saw your video i'l try, and lety you now if it works... thank you very much....

[ManEatingLunchBox]

subscribed

[sandiaNL]

Haha! It works!