Show us your animated GIFs... [Volume 4]
Discussion
They didn't. The video stops before they both make it anywhere near the start/end point. Note that they start on short ramps. The one furthest away is travelling considerably faster when the video cuts, and they both have the starting ramp to climb in order to get back to the beginning. I reckon that they would both get back to the start at the same time, or the straight path might be slightly ahead due to lower square law friction losses. Editing the video like that made it seem like the one on the wiggly path got back first.
RumbleOfThunder said:
Been trying to work out why they would be different to each other then it struck me that neither should've made it back to the start point anyway, due to conservation of energy?! 
If it's a nearly frictionless ramp, they will pretty much return to the start point.I wondered about how the nearer ramp results in the bearing getting back to the start before the other, but it's fairly straightforward if you simplify it. The ball raches a lower point on the near ramp than on the far ramp. If you imagine that it was travelling a simple arc, the nearer ramp would have a lower radius so even though the ball travels further, its frequency would be higher (pendulum theory).
The average radius of the far ramp is so higher, so the ball takes longer to complete its cycle.
I think.
Veeayt said:
Gorf said:
RumbleOfThunder said:
Been trying to work out why they would be different to each other then it struck me that neither should've made it back to the start point anyway, due to conservation of energy?!
If it's a nearly frictionless ramp, they will pretty much return to the start point.I wondered about how the nearer ramp results in the bearing getting back to the start before the other, but it's fairly straightforward if you simplify it. The ball raches a lower point on the near ramp than on the far ramp. If you imagine that it was travelling a simple arc, the nearer ramp would have a lower radius so even though the ball travels further, its frequency would be higher (pendulum theory).
The average radius of the far ramp is so higher, so the ball takes longer to complete its cycle.
I think.
and further experiments here
SystemParanoia said:
any guitarists able to recognise the melody ?
It could be Motorhead - Orgasmatron "I twist the truth, I rule the world, my crown is called deceit
I am the emperor of lies, you grovel at my feet
I rob you and I slaughter you, your downfall is my gain
And still you play the sycophant and revel in you pain
And all my promises are lies, all my love is hate
I am the politician, and I decide your fate"
SystemParanoia said:
It's actually fine, lol.
Mothersruin said:
SystemParanoia said:
It's actually fine, lol.
https://www.youtube.com/watch?v=i1Y_09HHulI
I see possible future wheelchairs or amazon delivery robots to end up leaving it on under the door mat as http://www.pistonheads.com/gassing/topic.asp?h=0&a...
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