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Articles related to "Degrees Kelvin"
Absolute Zero For all practical purposes, absolute zero is the coldest temperature, but the complete story of absolute zero is a little more complicated. absolute zero • absolute 0 • kelvin scale • degrees kelvin • -273.15 celsius
Heat from Origin of the Universe The big bang theory predicts the universe has cooled to a few degrees above absolute zero and is awash in a faint glow of the 3K microwave cosmic background radiation. cosmic background radiation • cosmic microwave background radiation • big bang theory • origin of the universe • 3k background radiation
All about Fluorescent Lighting Fluorescent lighting is much more energy efficient that incandescent bulbs (6X more light) or line voltage halogens. The energy bill sets a phase in for this lighting. learn about fluorescent lighting • president bush's recent energy bill • incandescent light bulbs • low voltage halogens • led light bulbs
The Planck Time and the Big Bang In the big bang theory, the Planck time is the first miniscule fraction of a second after the initial big bang. The universe had just come into being. big bang theory • universe • planck time • cosmic background radiation • hubble plot
Comet Shoemaker-Levy 9 The impact of comet Shoemaker-Levy 9 showed that the solar system is still a very volatile place. comets • shoemaker-levy 9 • gene shoemaker • carolyn shoemaker • david levy
Metric Temperature Conversion The basic formulas to use when converting temperatures between Fahrenheit, Celsius and Kelvin. changing fahrenheit to celsius • what is kelvin temperature • how to change to metric temperature • what is centigrade • how many degrees is freezing
Types of Stars Stellar spectral classification helps astrophysicists understand the lives of stars. spectrum • electromagnetic spectrum • star • astrophysics • stellar classification
Blackbodies in Astrophysics The wavelengths of the electromagnetic radiation emitted by an ideal blackbody radiator depends only on the temperature. ideal blackbody radiator • electromagnetic radiation • blackbody • astrophysics • astrophysical applications
Digital Photography: White Balance Digital cameras automatically adjust their white balance for different lighting conditions, although sometimes they need a little help. color temperature • awb • white balance • color cast • raw
Nucleosynthesis in the Big Bang The lightest four elements on the periodic table were made in nuclear fusion reactions shortly after the big bang. big bang theory • universe • elementary particles • protons • cosmic nucleosynthesis
Physical Fundamental Quantities The idea of a fundamental quantity is an important concept that underpins all of physics fundamental quantities • base quantities • physical quantities • derived quantities • si units
Temperature and Heat Content What is the difference between the temperature of an object and its total heat content or internal energy? temperature • heat content • heat energy • thermal energy • heat capacity
The Interstellar Medium, Part II: Dense Molecular Clouds A discussion of how molecular clouds form and how star formation occurs within them. astronomy • molecular clouds • star formation • interstellar medium
Magnetic Sampling and Analysis Sampling and analysis of rocks for their magnetic properties is a complicated and tedious process. The results though, have helped to revolutionize the science of geology. geology • geophysics • earth • science • earth science
OUR black hole. Part II It seems that every galaxy harbors a black hole in its core. The larger the central bulge of older stars, the bigger the hole. Our Milky Way is no exception, but only recently have we developed techniques suitable for peering into the cocoon and measuring the massive, quiet beast lurking inside. chandra • sagittarius • vla • vlt • yepun |
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