How Galileo Discovered Friction

#science #shorts #demo #physics #purdue #friction #science

[casperhansen]

You can actually hear where the energy went

[terryaucoin]

The work our ancestors did to figure out nature is truely inspiring.
But now its a hot wheels track with sticky finger spots all over it lol

[mrreemann]

The ball ends up at the same height because the only force acting upon it vertically is gravity. There is friction on both sides of the ramp (downward and upward).

[wesleyoneal]

The ball is moving as fast as it's gonna go within 2in of the drop so it will mostly get back up to the same spot. Reduced friction will allow it to go higher but it still is only gonna go as fast as it will no matter how high you drop it from. Within reason. IDK I made all that up.

[daveblack]

No, Galileo did exactly the opposite. He created a model which mistakenly omitted friction.

[patricknorton]

"Discovered" friction? People have been making fire with friction since before we were anatomically modern humans.

[aaronrobertcattell]

what happens if you change the angle of the slope
what happens if the ball size is changing as it goes down the first slopeside

[kendopowell]

And they point of this is?? Not much of an explanation was givin