MythBusters: Hidden Nasties - Cannonball Car Skip

MythBusters returns Wednesdays @ 9pm E/P with all new episodes! http://dsc.discovery.com/videos/mythbusters/
Inspired by the fan site, the team tests out a small scale version of the Cannonball car skip myth.

Category:

Science & Technology

Tags:

• discovery channel
• mythbusters
• cannonball car skip myth

[GherebenR]

When's Kari coming back ? This new girl is so annoying!!

[chaulkster]

During the "scale" test they used a 1/12 model... and reduced the weight to 2lbs. They already said the full scale car was 1.2 tons (2400lbs). At that scale the car should have been 200 lbs NOT 2lbs. What morons. How did they get on TV?

[jelsc123]

He should stomp it

[nhoogen1]

but is the car weight correct from wheels & rear wheels-that realy maters. rear should be a little heavier

[zoso923]

i love this show but this girl sucks. Im not watching this season because of her. she so annoying you have to earn the right to be there. work your way up like the girl that got burned by the jawbreaker she should be pitching myths but she cant because shes not hot. shame on you discovery channel.

[ClipzEmpty]

@GOD WOW!

[gordon5cc]

@chaulkster how did you get your dumb ass into the comment section?

[DriftkingS2K]

the model is so rare and expensive its a shame they destroyed it

[crsohr]

Dont wanna start a full blown discussion here but I'm afraid you are incorrect. Provided all dimensions scale equally, ALL volumes scale as the cube of the individual dimensions. Imagine the car is made up of millions of tiny cubes. Each one scales down as a large cube would. Therefore, the proportional change in mass is the same as if the car was reshaped into a cube. Again, provided ALL three dimensions scale identically. And I'm gunna be slightly off with the lbs and stuff as I'm from UK. ^^

[Moh1Z]

@crsohr For a cube, yes, but different shapes scale differently into volume. For example, for a sphere the volume would be about 1/413. The car is frankly neither. Also, 1.2 tons is more like 2640 lbs instead of 2400. And 1.39lbs is a fuckload off of 2lbs - it's almost a third less, for Christ's sake. You're both wrong on so many accounts.

[crsohr]

@chaulkster The 1/12 scale is in length. If the length is 1/12, the total volume is therefore 1/(12^3) of the full size because volume scale as the cube of length. Mass is proportional to volume, so the mass must be 1/(12^3), or 1/1728 scale. 1/1728 of 2400lbs is 1.39 lbs, so they weren't far off. Think twice before calling someone a moron. :)