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Hace 1 día · The cosmic microwave background ( CMB or CMBR) is microwave radiation that fills all space in the observable universe. It is a remnant that provides an important source of data on the primordial universe. [1] With a standard optical telescope, the background space between stars and galaxies is almost completely dark.
Hace 1 día · Hubble's law, also known as the Hubble–Lemaître law, is the observation in physical cosmology that galaxies are moving away from Earth at speeds proportional to their distance. In other words, the farther they are, the faster they are moving away from Earth. The velocity of the galaxies has been determined by their redshift, a shift of the light they emit toward the red end of the visible ...
Hace 1 día · Introduction. Maxwell’s equations characterize macroscopic matter by means of its permittivity ε, permeability μ, and conductivity σ, where these properties are usually represented by scalars and can vary among media. Section 2.5 discussed media for which ε, μ, and σ are represented by matrices, complex quantities, or other means.
Hace 5 días · Based on experimental studies, the recovery heat fluxes at boiling of superfluid helium on a flat heater located inside a U-shaped channel, whose lower part was filled with monodisperse porous backfill, have been obtained at different immersion depths and liquid temperatures.
Hace 5 días · The flux density and position of the source were measured in each image by fitting an elliptical Gaussian to the source. Figure 15 shows fits of the attenuation pattern of cosine illumination taper to the flux densities measured from our J1939-6342 observations.
Hace 2 días · Flux Pope George Maciunas died last year after collapsing with a heart attack at his summer palace in New Marlborough. Earlier doctors fought to save the 92 years old spinster after being beaten ...
Hace 3 días · Fluxes are provided for clear-sky and all-sky conditions in the longwave (LW), shortwave (SW), and window (WN) regions. CERES SYN1deg products use 1-hourly radiances and cloud property data from geostationary (GEO) imagers to accurately model variability between CERES observations.
