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Big Bang Notes

TermDefinition
Big Bang Theory The universe started with a big explosion.
Visible Light Spectrum The visible light spectrum is the segment of the electromagnetic spectrum that the human eye can view. More simply, this range of wavelengths is called visible light
Cosmic Microwave Background Radiation (CMB) Scientists thought if there was a BB, then there must be remnants of energy left out there in the far reaches of the universe. This energy was found in the form of microwaves and is coming at us from every point in the universe
Helium is 25 % of the universe.
Red Shift A increase in wavelength.
Spectrograph A spectrometer is a scientific instrument used to separate and measure spectral components of a physical phenomenon
Energy Energy, in physics, the capacity for doing work. It may exist in potential, kinetic, thermal, electrical, chemical, nuclear, or other various forms. ... After it has been transferred, energy is always designated according to its nature
Universe The universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms of matter and energy
Galaxy A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter
Astronomy The study of Space.
Albert Einstein General Theory of Relativity
Edwin Hubble Discovered an electromagnetic property called the Red Shift and Explained why galaxies appear to be accelerating away from the each other
Electro-magnetic Spectrum The electromagnetic spectrum is the range of frequencies of electromagnetic radiation and their respective wavelengths and photon energies.
Hydrogen is 74% of the universe.
Fred Hoyle English astronomer, Fred Hoyle, coined the phrase Big Bang in 1949
Arno Penzias and Robert Wilson In the mid 1960’s, and totally by accident, two young scientists picked up mysterious microwave static coming from every direction in the sky
Blue Shift A decrease in wave length.
Created by: Reid O
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