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Drekkus
22-01-2010, 09:04:35
This one is for the physicicsisists amongst us:

I was driving on the motorway yesterday when my windshield was hit by a small stone, creating a lovely star in my car window.
Afterwards I was wondering about bouncing litlle stones on motorways. If a small stone is cast up by a car doing about 100 km/h, and it hits a windshield of another car, also doing a 100 km/h, at some angle, what sort of trajectory and speed does it follow? Does it more or less bounce up and down and get thrown up in the air now and then, or does it travel at incredible speed across the motorway, gaining more and more momentum with every windshield it hits?

I like to think of a litle stone, traveling acros the motorway, jumping from windshield to windshield, ending up hundreds of kilometres away from home.
"Papa was a bouncing stone, where ever he laid his head, was his home!!"

Funko
22-01-2010, 09:10:12
The problem is it all depends on what "at some angle" is and how fast and at what trajectory it's cast up by the car in the first place. As well as where it hits and what happens to the glass it hits...

but the little stone bouncing for hundreds of kilometers from windshield to windshield sounds highly unlikely.

Drekkus
22-01-2010, 09:14:57
typical boring physisist answer :(

Funko
22-01-2010, 09:28:12
Unless the magical stone fairy comes along to carry the stone to it's new home.

Cheshire Cat
22-01-2010, 09:44:19
Drekman, you could create a tiny gravel stone with GPS embedded, and scatter a lot of them on the highway

then you'll be able to track their path and speed
it might even earn you a Nobel

http://weather.about.com/od/tornadoe1/ss/fujita_7.htm

Funko
22-01-2010, 10:18:38
Now that's a worthy experiment!

MDA
22-01-2010, 12:24:36
You could probably get government funding for the research.

Funko
22-01-2010, 14:32:30
Get a government research grant for the science and an arts council grant for the art aspect.

Lurker
22-01-2010, 14:54:46
Finally this place comes up with something useful. :beer:

Drekkus
22-01-2010, 15:32:08
And I want the BBC Natural World camera team to film all the live testing.

Oerdin
22-01-2010, 15:40:53
Finally this place comes up with something useful. :beer:

It was bound to happen eventually.

Funko
22-01-2010, 15:51:52
CG is almost literally the monkeys with typewriters thing.

Lurker
22-01-2010, 16:08:52
Now, let's get to the really important part: who's gonna play who in the movie?

Funko
22-01-2010, 16:13:33
Just need one actor to play Keith don't we?

Lurker
22-01-2010, 16:14:53
Yeah. Which actor is the gayest twat of all time?

Oerdin
22-01-2010, 17:19:58
Tom Cruise is pretty god damned gay and he's a twat.

Funko
22-01-2010, 17:21:21
Kevin Spacey.

Cheshire Cat
22-01-2010, 18:59:58
Brian Keith (http://www.imdb.com/name/nm0001417/)

(...it's a Family Affair (http://en.wikipedia.org/wiki/Family_Affair)!)

Lazarus and the Gimp
22-01-2010, 20:52:55
I like to think that, instead of being flipped up by tyres, the stones get batted back and forth by the windscreens of cars like a game of tennis, and that some stones on busy roads haven't touched the ground in years.