Possible Method for determining the Planck Constant of Cosmic Photons

Details Possible Method for determining the Planck Constant of Cosmic Photons Possible Method for determining the Planck Constant of Cosmic Photons

Nov 1970

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1970natur.228..845h&link_type=abstract

Nature, Volume 228, Issue 5274, pp. 845-847 (1970).

Computer Science

3

Scientific paper

SOME years ago, Bahcall and Salpeter1 suggested that photons arriving from distant quasi-stellar objects (QSO) might not have the same Planck's constant, h, which we normally measure in the laboratory. In particular, they suggested a test which could be used to determine a dependence of h on the redshift parameter, z, of photons arriving from these objects. They proposed to measure the wavelength λ of such photons using a grating spectrometer. The photon energy ɛ could be independently measured by a prism instrument. The product could then be directly determined and compared with the product hc, obtained using a laboratory source. Existing measurements already imply a constancy of hc to about 1 part in 103, where c and ν represent the photon speed and frequency.

Affiliated with

Also associated with

No associations

Rating

Possible Method for determining the Planck Constant of Cosmic Photons does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Possible Method for determining the Planck Constant of Cosmic Photons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Possible Method for determining the Planck Constant of Cosmic Photons will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1012376