Stewart recognized that, if he wanted a blackbody spectrum
from a cavity, he must have recourse to lampblack.
The infrared spectra are automatically averaged and integrated with respect to the blackbody spectrum
at selectable temperature range.
When the satellite, NASA's Cosmic Background Explorer (LOBE), reached orbit in 1989, it showed that the CM B has the blackbody spectrum
predicted by the Big Bang theory, with a temperature of 2.
Whatever happens within graphite and soot to generate a blackbody spectrum
must also happen on the surface of the Sun.
The perfect blackbody spectrum
virtually ruled out any explanation for the cosmic-microwave background other than the Big Bang," notes cosmologist Michael S.
Real gases can never meet the requirements for generating a blackbody spectrum
, as they possess both convection and reflection.
In another controversy, two groups argued for years over which first determined that the radiation has a blackbody spectrum
Known as the Balloon Anisotropy Measurement, this survey employs a spectrometer, a device normally used to study how closely the intensity of the microwave background at different wavelengths matches a perfect blackbody spectrum
0] is the temperature of the blackbody spectrum
today, which is 2.
The Big Bang model predicts that this radiation should have a virtually perfect blackbody spectrum
, and this was verified to remarkable accuracy by the Far Infrared Absolute Spectrophotometer (FIRAS) experiment on COBE.
Based on a small sample of data, the measurements so far show no deviations from a blackbody spectrum
The pumping of ever more photons into an arbitrary cavity while invoking reflection as a means to justify the buildup of the blackbody spectrum
is forbidden by the first law of thermodynamics .
Spectra will tell the difference: True ZITs will have the blackbody spectrum
characteristic of the cosmic microwave background.
section]) The blackbody spectrum
which could be produced in the laboratory using simple materials like graphite, soot, or metal-blacks [21-24], at once required the summation of a large set of processes which were not known to contribute to the production of the blackbody spectrum
on Earth [41,42].
It was not a blackbody spectrum
but a line spectrum, Deutsch says.