StringJunky

Yeah. I 've thought of another one: if you concentrate - not focus - on the periphery, you can apparently see dimmer stars at night than with the central portion.

Put something close up to your eye when you do that... is it sharp?

Is 13+ billion years long enough?

The maths does not allow observation from c....it's results are infinities and zeros. No time, no distance for a photon, and infinite speeds necessary for a massive object. It's just meaningless.

A particle of the standard model has the ability to act whereas a virtual particle does not.This was the distinction I was trying to make. Whether it matters or not is neither here nor there. He described them as quanta having energy. They are not individually quanta. Are they?

It's a never-ending onslaught.

It seems, as long as there's 4 satellites in view from any position on Earth, it works. I'm sure Swansont will elaborate.

isn't their effect collective rather than individual, except when they pair to form proper or quantized particles?

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They are called 'virtual' because they are not quanta, they are less than that. Anything that is less than a quanta has no affect on matter and is not individually measurable.

Because a particle is a field excitation.

I suppose when you are talking Planck accuracy then it is an approximation. C'mon man, that's worse than splitting hairs.

A laser fired at the reflector on the moon returns ok... or is that still within the bounds of an approximation?

Probably best to show how you produced it and your apparatus.

GIYF.

I found this PPT presentation which I've converted to PDF. I've uploaded it. Note the print is rather large, so shrink the doc. In it, it says: Chapter 18.pdf

Women can remain conscious under higher G than men because the are shorter, so may be organisms evolved under higher G will be shorter? From that you could surmise they won't be any more affected by 0 G

An enzyme is a catalyst and speeds up reactions; it is not a reactant itself. Amylase causes the starch to break down into maltose and glucose.The yeast can metabolize glucose but not maltose, which the bacteria can, into more glucose. The carbon dioxide is a product of the yeast metabolism of the glucose. https://en.wikipedia.org/wiki/Sourdough

That last 1% doesn't matter to the masses but to the discerning aficionado it does. .. it can mean the difference between winning and losing or something being tolerable or not. Goldplating stops oxidation,it's not just about signal purity.

They use it to reduce the risk of fire at high altitude because the wheels are stored in the wings next to fuel tanks.

Chasing a hangover cure is like lacing a bullet with penicillin.

It's nice to see Relativity mentioned again because I think this is true.

I think the correct word is 'Emergence'. What do you want to know?

Cheers.