« on: 12/07/2018 20:46:26 »
What is the excipient in an epipen?
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Quote from: AlanCertainty is undefined. What we know (with absolute certainty!) is that either ΔpΔx ≥ h, or the universe would collapse to a singular point. It hasn't, and we have a pretty good idea of the value of h.
Thinks for clarifying that. All I have to do now is work out why the Universe would collapse.
The Copenhagen Interpretation of quantum theory holds that there is no reality at a quantum level, without observation.And there's the problem. You start with an undefined and probably undefinable concept "reality" then add an equally undefined "observation". That's OK if you want to build a mathematical model in which the undefined variables cancel each other and you end up with a testable prediction, but you can't take the axioms too seriously. It's a bit like "aether" and "conventional current" - helpful but ultimately meaningless!
Angular resolution: about 1 arcminute, approximately 0.02° or 0.0003 radians, which corresponds to 0.3 m at a 1 km distance.
This is a great invention , great as a dynamo or electrical motor, I wonder why da vinci didn't invent it?Practically every clock built before 1400, and quite a few modern grandfather and cuckoo clocks, use a falling weight as the energy store. da Vinci didn't invent it because it was already old technology before he was born.
and nobody in his right mind considers death to be a bad thing.
You are saying death is a good thing?