Monday, 24 October 2011

Radioactive decay and the meaning of life.

Take a lump of pure uranium 235. Make it a small lump or the experiment won’t last very long. ( See ‘chain reaction’ )
This uranium is unstable and will decay into different elements over time. This can be shown as a decay curve that shows exponential reduction of the uranium. This means that each molecule of uranium will decide to decay at a different time. But, they are by definition all the same so why do some ‘decide’ to decay earlier than others?
Possibilities:-
1 – Each molecule is different and so decides when it wants to decay.
2 – Something is in control and so tells each molecule when it is it’s turn to decay.
3 – Neither of the above are true so the decay of each molecule is totally random and it is only the very large number of molecules involved that give the smooth decay curve.
Argument:-
#1 cannot be true because each molecule is made of the same, identical smaller particles.
#2 seems unlikely, who, what, would bother to individually control every molecule in the universe?
That leaves #3 which seems to be true. If so then this fist sized lump of uranium is demonstrating that all events in the universe are random.
Sounds good to me.
 To put it into modern terms, there is no app for the meaning of life.

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