2007-02-16 12:17:04 · 4 answers · asked by goring 6 in Science & Mathematics ➔ Astronomy & Space
I believe it may have had something to do with his cosmological constant....and maybe what might have been a beginning of a hint of what we now know as dark matter.
2007-02-16 12:26:24 · answer #1 · answered by Shaula 7 · 2⤊ 0⤋
what we know now as elementary particles. A photon is an elementary particle. Dark matter consists of elemantary particles. All of the above are correct.
2007-02-16 21:05:28 · answer #2 · answered by gkltdd 4 · 0⤊ 0⤋
I believe he means what is called dark matter which is supposed to be composed of some type of yet unknown material
Dark matter is matter, not directly observed and of unknown composition, that does not emit or reflect enough electromagnetic radiation to be detected directly, but whose presence can be inferred from gravitational effects on visible matter- Wikipedia
http://en.wikipedia.org/wiki/Dark_matter
2007-02-16 20:56:48 · answer #3 · answered by Elgato 3 · 0⤊ 0⤋
Yes, and other elementary particles. Basically, substances without mass.
2007-02-16 20:23:57 · answer #4 · answered by Anonymous · 1⤊ 0⤋