"The outstanding feature... is the possibility that the velocity-distance relation may represent the de Sitter effect, and hence that numerical data may be introduced into discussions of the general curvature of space. In the de Sitter cosmology, displacement of the spectra arises from two sources, an apparent slowing down of atomic vibrations and a general tendency of material particles to scatter. The latter involves an acceleration and hence introduces the element of time. The relative importance of these two effects should determine the form of the relation between distances and velocities; and in this connection it may be emphasized that the linear relation found in the present discussion is a first approximation representing a restricted range in distance."
Quote Details
Added by wikiquote-import-bot
Unverified quote
0 likes
CosmologistsAstronomers from the NetherlandsPhysicists from the NetherlandsMathematicians from the Netherlands
Original Language: English
Available Languages (1)
Sources
Edwin Hubble, Proceedings of the National Academy of Science (1929)
https://en.wikiquote.org/wiki/Willem_de_Sitter
Revision History
No revisions have been submitted for this quote.
Categories
Willem de Sitter
Willem de Sitter (6 May 1872 – 20 November 1934) was a Dutch mathematician, physicist, astronomer and cosmologist who applied the general theory of relativity to the early investigation of the structure of the universe.
61 quotes on TrueQuotesView all quotes by Willem de Sitter →
Related Quotes
"There is no direct observational evidence for the curvature [of space], the only directly observed data being the mea…"
"It was early 1932, when Einstein and I both were at the California Institute of Technology in Pasedena, and we just d…"
"[Einstein's cosmological constant] is a name without any meaning. ...We have, in fact, not the slightest inkling of w…"
"Our own galaxy system is only one of a great many, and observations made from any of the others would show exactly th…"
"Gradually... during the second half of the nineteenth century, the uncomfortable feeling of dislike of the action at …"
"In electromagnetism... the law of the inverse square had been supreme, but, as a consequence of the work of Faraday a…"
"The inconsistency of first explaining matter by atoms and then explaining atoms by matter was only slowly realised, a…"
"How does it come about that we have been able to find satisfactory hypotheses to explain electricity and magnetism, l…"
"Gravitation is not only similar to inertia in its generality, it is also measured by the same number... the mass. The…"
"Gravitation is entirely independent of everything that influences other natural phenomena. It is not subject to absor…"