Any one else see the program on BBC4 last night? The story of electricity and discovery etc. Really interesting and on iplayer if you missed it.
https://www.bbc.co.uk/programmes/p00kjq6h
https://www.bbc.co.uk/programmes/p00kjq6h
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OK. I'll bite... Why?... I spent the day looking for frogs .
So lets say when two cars do 70mph and hit head on, the combined speed of impact is 140 mph. most cars cant do 190 mph, but you could study the impact forces by colliding two cars the same, at 95mph each. Stick a test dummy in it and the experience for the dummy is like a 190 mph crash.
So both true and not true! interesting, however myth busters dosnt always get it right, They did one with a jet engine. The idea was a jey engine could knock over a car. They busted the myth, except Top Gear did the same experiment and they blew the car over.I thought this to be true but then I watched MythBusters**broken link removed**
Must get around to explaining my understanding of black holes on your other thread.
Have fun.
Mike.
Hope you are not expecting any answers from me!I have a great question to ask on something else .
Have a look at Hawkings energyHope you are not expecting any answers from me!
I find QM and relativity fascinating, but have no hope of understanding either. The bits I keep forgetting when using common sense are that time is different in different places and that space-time is warped by Gravity (but I don't really get what space-time is).
More incredible is dark matter and dark energy (if such things turn out to exist). There are some very basic and fundamental truths about physics that nobody has the first clue about. Really hope somebody comes up with answers in my life-time, and that Jim Al-Khalili gets the job of explaining it