Thought experiment of the day
Imagine holding a slinky at the top and letting the bottom go until, after some boucing, it come to rest. Now, let go of the top of the slinky. Now ask yourself… “what happens to the bottom of the slinky?”
Have a think about your answer… then watch this slow motion footage
http://www.youtube-nocookie.com/embed/uiyMuHuCFo4
If that just blows your mind a little then this podcast gives lots of great explanation, in an way and fun way to understand.
My favourite part:
Neil deGrasse Tyson on the futility of trying to understanding anything before its too late!
>When you know about it you know about it… Life is too short for me to worry about something I have no control over that I don’t even know will happen. Someone said ‘if Earth is going to be swallowed by a black hole or if there is some disturbance in the spacetime continuum should we worry about it?’. My answer is ‘no’ because you won’t know about it until it crosses your… your place in spacetime.
>Your beats come to you when nature decides it’s the right time… be it the speed of sound, the speed of light, the speed of electrical impulses we will forever be victims of the time delay between information around us and our capacity to receive it.