世界万物是不是都是由量子构成的？

To which I can sincerely say:

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你好 阿明
All things in the world?
Well so it seems.
For example, you cannot divide things indefinitely many times.
Which means you cannot divide space indefinitely many times.
The same for time which I think is very odd:) That time comes only in small packages...
But then why not. Movies are still pictures but when showed 25 frames/second it comes alive.

If I were to make it the Planck constant, for only the notion of time, I could also make it Cosmic strings, for only such thinking.

But next that this latter field appears to be divided on just meaning, if perhaps for not only explaining it either.

Except for that, I did not have it specifically in mind here, for just a subject, so I better should be looking a little more also here.

Seek help

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Look betreger, but many of these questions are founded on a world only thought to exist, and therefore not any Reason behind, for only such a meaning.

Therefore you perhaps do not have to prove any science versus the other either, when still only the same thing all the time.

https://wtop.com/science/2018/11/dimming-the-sun-the-answer-to-global-warming/

I'm not sure whether I like the idea of putting more chemicals in the atmosphere to counter the effect of those that are already there.

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Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.

Well we do have a history of altering the atmosphere with florocarbons and then undoing it.

The Ozone Layer If CFCs Hadn’t Been Banned

https://earthobservatory.nasa.gov/images/38685/the-ozone-layer-if-cfcs-hadnt-been-banned

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Or maybe just spoil a cup of coffee instead, for perhaps seeing it before.

How about a shield put at a Lagrange point to reflect incoming radiation. However since we may be heading into another ice age we better be careful and consult our Northern neighbors who would prefer it it be as warm as possible.

Who, the polar bears?
Tullio

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Who, the polar bears?

Yes you are right as you can see.

A question I have had for some time, is we know that the material that makes up our solar system came from the remnants of an exploding star. In order for the star to explode, it must have used up all its hydrogen. If that is the case, then where did the hydrogen that formed our sun come from?

Steve

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Warning, addicted to SETI crunching!
Crunching as a member of GPU Users Group.
GPUUG Website

As I understand it, supernovas contribute substantial amounts of the heavier elements to the interstellar medium, out of which new stars form. It's thought that there is already a good deal of lighter elements, like hydrogen, and helium present in the ISM.

In any case, it is believed that supernovas do not use up all of their hydrogen before they explode. Nearly all of the hydrogen in the cores is apparently consumed, but such stars are thought to have built up layers of hydrogen near their surfaces, which can not undergo fusion. These and layers of heavier elements are apparently blasted out into space, making them available for the creation of new stars.

Gamma ray pulsarJj0002, discovered by the volunteers of Einstein@home in the Fermi gamma ray satellite data, is hurtling through space at the speed of 4 million km/hour, which would take it from the Earth to the Moon in 6 minutes. It is faster than 99 % of known pulsars. The discovery made by Einstein@home volunteers is acknowledged in the NASA home page.
Tullio
NASA says computing time by Einstein@home has exceeded 10000 years. 23 gamma ray pulsars were discovered.

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