Recent content by rogermunns

Thank you all, I am satiated.

I am sorry if I have 'come across' as a jerk. Of course. I think the problem is that I am an 'old' Physicist (1966 Hons. Phys. London). In those days we were taught about protons, neutrons, electrons, plus maybe a few vague ideas like quarks. I would call myself a practical Physicist, hence the...

Thanks, but the second reply goes no further than ignoring the question.

Reading that Wiki article was a bit like reading of the Theory of Evolution. Surely the first question is 'How did life start?' not 'What happened when life got going?' Again, the question is 'How did elementary particles form? Words like <<Initially, various kinds of subatomic particles are...

... and how were these then able to go on to form atoms?

Also, at this time the satellites are so nicely lined up that, on their orbits, they now are occasionally occulting each other. Seeing the satellites passing in front of Jupiter is quite common, but seeing one satellite passing behind another is quite rare.

Isn't the assumption about asteroid velocity very low? I thought a speed more like 50km a second was likely. Or 1000 times as large as the OP's figure.