Quote:
Originally Posted by weather balloon
for example: according to Hawking's theory, black holes with a mass < 1000 tons explode.
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According to Hawking's theory, smaller black holes evaporate more quickly. A 999 ton black hole will evaporate more quickly than a 1001 ton black hole, and the evaporation will release quite a bit of energy, but you imply that a black hole below 1000 tons will suddenly explode, which is inaccurate.
Quote:
Originally Posted by weather balloon
Questions: why are there supposed to be black holes weighing more than 1000 tons, i.e. how did such BHs come into existence at all ? why don't we observe exploding black holes ?
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They start out with several times the mass of the sun, and we don't see evaporating black holes because there just hasn't been enough time for them to evaporate.
Quote:
Originally Posted by weather balloon
as for the cosmic rays (those high energetic particles relevant): have you ever wondered how they measure them ? Simply put: they hold a piece of plastic towards them, clean the fissure caused by the cosmic ray with Sodium Hydroxide and calculate from the size of the fissure both energy and charge of the particle. Now, that's what I call accurate  |
CR-39 plastic track detectors are just one way of detecting and measuring particle radiation. Cosmic ray observations are not based only on tracks in CR-39, and as for the accuracy of the technique, you've made it quite clear you're not qualified to judge such matters.
I would rather not watch YouTube videos, please summarize them. However, I hope you are aware that YouTube videos are not exactly an accurate source of information.