1.)What is dark matter?
2.)What is dark energy?
3.)How were the heavy elements from iron to uranium made?
4.)Is a new theory of light and matter needed to explain what happens at very high energies and temperatures?
5.)are protons unstable?
6.)What is gravity?
7.)Do neutrinos have mass?
2006-12-08 04:35:54 · 5 answers · asked by Derek B 4 in Science & Mathematics ➔ Physics
Not even Stephen Hawking has the complete answers to these questions.
2006-12-08 04:39:46 · answer #1 · answered by jasonheavilin 3 · 0⤊ 0⤋
Dark matter and energy account for differential rotation in Galaxies. Heavy elements are created from Type 2 supernova. Protons are theoretically unstable I think but proton decay has never been observed. Gravity is an attractive force between two objects that is inversely proportional to their distances. Neutrinos have mass(very small)
2006-12-08 04:39:49 · answer #2 · answered by nckobra40 3 · 0⤊ 0⤋
1 and 2 have a lot of deep theoretical stuff that I'm not too informed about so I'll skip.
3.) H to Fe are produced within stars, but Fe so as far as the star can go, but when supernovas occur, Fe and the other elements are able to produce the heavier elements of the periodic table.
4.) Depends on who you talk to. Mostly quantum physicists.
5.) Yes, if they weren't we'd be in some serious trouble.
6.) A force that attracts atoms together.
7.) Yes, but incredibly small masses. Everything has mass to may knowledge except for photons (light particles).
2006-12-08 04:44:37 · answer #3 · answered by Grand Master Flex 3 · 0⤊ 0⤋
Stop being lazy and do your own homework!
2006-12-08 04:43:29 · answer #4 · answered by angelonthesun 3 · 0⤊ 1⤋
www.universaltheory.org/dark_matter.htm
superstringtheory.com/cosmo/cosmo5.html
www.stanford.edu/dept/news/pr/2005/pr-aaas_susskind-021605.html
news-service.stanford.edu/news/2005/march2/aaas_susskindsr-030205.html
www.sns.ias.edu/~witten/papers/string.pdf
www.physorg.com/news3101.html
www.darkmatterphysics.com
2006-12-08 04:45:20 · answer #5 · answered by morganna_f 3 · 0⤊ 0⤋