big bang theory

2. the degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch.
4. the physical interaction among electric charges, magnetic moments, and the electromagnetic field.
5. a unit of astronomical distance equivalent to the distance that light travels in one year, which is 9.4607 × 1012 km (nearly 6 trillion miles).
7. the era that started when the gravitational effect of matter began to dominate the effect of radiation pressure.
10. measures how much more expensive a set of goods and services has become over a certain period
11. in some cosmological theories) nonluminous material that is postulated to exist in space and that could take any of several forms including weakly interacting particles ( cold dark matter ) or high-energy randomly moving particles created soon after the Big Bang ( hot dark matter ).
12. the science of the origin and development of the universe. Modern astronomy is dominated by the Big Bang theory, which brings together observational astronomy and particle physics.
14. a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
15. change in observed wavelength, or frequency

1. the SI base unit of thermodynamic temperature (equivalent in size to the degree Celsius), first introduced as the unit used in the Kelvin scale.
3. An alternative term for the radiation era in the Big Bang theory, during which the Universe was hot and dense and was dominated by the effects of radiation
6. the average density of matter required for the Universe to just halt its expansion, but only after an infinite time
8. gravity, electromagnetism, and the strong and weak nuclear forces
9. a variable star having a regular cycle of brightness with a frequency related to its luminosity, so allowing estimation of its distance from the earth.
13. a region of space having a gravitational field so intense that no matter or radiation can escape