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car,roll,uphill,gravity,mountains,hill,slope The amazing road that makes cars roll uphill (for real!)
Comments  who voted for this video Shepppard
- arvana
- siftbot
x21The Amazing Road That Makes Cars Roll Uphill (for Real!) Related Videos
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I wonder if it would do the same thing for bicycles.
OK Where are all the brainy fellas that usually hover over these kind of sifts? I did not offer an answer so much as asked a question
....next day
OK Where are all the brainy fellas that usually hover over these kind of sifts? I did not offer an answer so much as asked a question
Okay, I'm not trying to claim to be brainy by replying now, but I'll certainly put my hand up to being cynical.
I agree the most likely scenario is, as you suggested, two downhill slopes with the lower one being steeper - causing an optical illusion.
I've watched it a couple of times trying to confirm this by looking at the angle the trees are growing at, but the camera guy has done a good job.
Throwing some other (less likely) options onto the table, just for chuckles:
It could be a driving instructor's car, with two sets of pedals, the set on the right-hand side of the car not filmed. However as the engine clearly appears to be stopped at one point I don't think this is the case.
There is also a chance they are simply using deception and the footage has been played backwards despite the disclaimers of no tampering.
It is possible to make a ball roll up a small incline, using only gravity, by making the track slightly narrower at one end - but I can't see this being the case here, as the car is not a sphere.
http://www.weburbia.com/physics/roll-uphill.html
http://userpages.umbc.edu/~frizzell/gravhills.html
Apparently there are plenty of other places with the same illusion. Interesting stuff.
Pause at 2:19 to see the angle of the trees showing you which way the road is slanting.. and remember batman and robin can be filmed climbing up a building by simple turning the camera 90 degrees and having them climb along the floor.