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Tuesday 8 March 2011

Relativity

Our latest escapade takes us into the mind of a great physicist Albert Einstein, who's theories involve moving very fast.

What isn't commonly known is the fact that he didn't just theorise, he built a near light speed car to confirm results from his famous equations of special relativity. He wasn't discovered in this way as he was moving quite quickly.

We discovered this fact by building a faster than light speed car, using a regular microwave and a conservative manifesto. The car (which we have no idea how it managed to travel at the speed of light, perhaps to flee the budget cuts? #politicalhumour) destroyed the fabric of space-time, creating a wormhole and landing us in Einstein's living room in the 1930's.

We walked into his garage as he was polishing his new wheels. We put our car into a lower power mode and followed him. He happens to come across a traffic light. He observes it to be green, however it was red. This is due to a relativistic Doppler shift caused by the relative motion of Einstein and the light. German police saw right through his excuse and issued him a speeding ticket, and HPM an incorrect time existence tax. Luckily, due to inflation over the past 80 years it only cost us £0.20, so no harm done.

As we were being interviewed, we had a chance of talking to Einstein. As none of us speak German there were a few issues, but he is a delightful gentleman.

We embrace his theories and accept his results in our every day use. Not many of us realise we can take advantage of his findings and produce something very useful, as shown below.

This technique commonly used by Chuck Norris' Fist. And Phil Lightfoot.

This does not follow experimental evidence however, as it would require an infinitely large frictionless surface to test on (Physics ALWAYS has this issue however.

That's all for now, expect updates more frequently!
Solving the little questions, Tobias (Toblerone, Trollbias, Gout-Related-Pun, The crutched one)

2 comments:

  1. Hang on!

    You claim Einstein built a car to travel at very near the speed of light. However you later claim Einstein observed a green light when the emitted light was red.

    Taking the frequency of red light to be 400 THz and the frequency of green light to be 606 THz (the largest possible shift) and solving f=SQRT((c+u)/(c-u)) f0 for u we find u = 0.393c.

    This is more than 60% smaller than c and so cannot possibly fall within any reasonable definition of 'near the speed of light' which you claim the car was travelling.

    In fact if we're generous and take near to mean 'within 10%' then the freuency of the light observed would be 1.743 PHz which is within the UV spectrum and therefore could not be observed by Einstein without specialist equipment and it would certainly not appear green.

    It's flippant relativity like this which makes me beat up grass.

    ~Luke ;P

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  2. Very well done Luke
    However, you have forgotten to take into account that everything was in black and white back then, and so red and green were just 2 different shades of grey. There's no proof that it wasn't that way, so it was.

    ReplyDelete

Play nicely, no dividing by zero :)