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2. Microwave radiometer - Wikipedia

   en.wikipedia.org/wiki/Microwave_radiometer

   A microwave radiometer (MWR) is a radiometer that measures energy emitted at one millimeter-to-metre wavelengths (frequencies of 0.3–300 GHz) known as microwaves. Microwave radiometers are very sensitive receivers designed to measure thermally-emitted electromagnetic radiation. They are usually equipped with multiple receiving channels to ...

3. List of cosmic microwave background experiments - Wikipedia

   en.wikipedia.org/wiki/List_of_cosmic_microwave...

   This list is a compilation of experiments measuring the cosmic microwave background (CMB) radiation anisotropies and polarization since the first detection of the CMB by Penzias and Wilson in 1964. There have been a variety of experiments to measure the CMB anisotropies and polarization since its first observation in 1964 by Penzias and Wilson ...

4. Microwave - Wikipedia

   en.wikipedia.org/wiki/Microwave

   Therefore, on the surface of the Earth, microwave communication links are limited by the visual horizon to about 30–40 miles (48–64 km). Microwaves are absorbed by moisture in the atmosphere, and the attenuation increases with frequency, becoming a significant factor at the high end of the band. Beginning at about 40 GHz, atmospheric gases ...

5. Cosmic Background Explorer - Wikipedia

   en.wikipedia.org/wiki/Cosmic_Background_Explorer

   The Cosmic Background Explorer (COBE / ˈ k oʊ b i / KOH-bee), also referred to as Explorer 66, was a NASA satellite dedicated to cosmology, which operated from 1989 to 1993.Its goals were to investigate the cosmic microwave background radiation (CMB or CMBR) of the universe and provide measurements that would help shape our understanding of the cosmos.

6. Cosmic microwave background - Wikipedia

   en.wikipedia.org/wiki/Cosmic_microwave_background

   The interpretation of the cosmic microwave background was a controversial issue in the late 1960s. Alternative explanations included energy from within the solar system, from galaxies, from intergalactic plasma and from multiple extragalactic radio sources. Two requirements would show that the microwave radiation was truly "cosmic".

7. What does Kevin’s 1990 grocery order in ‘Home Alone’ cost in ...

   www.aol.com/does-kevin-1990-grocery-order...

   Kevin’s outing cost him $19.83 for milk, bread, toilet paper, laundry detergent, dryer sheets, cling wrap, macaroni-and-cheese, a turkey TV dinner, orange juice, and a bag of plastic Army men.