Big Bang Theory

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Across
  1. 5. an instrument for measuring the intensity of light
  2. 8. 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
  3. 9. a completely empty space
  4. 13. a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction
  5. 15. a pair of equal and oppositely charged or magnetized poles separated by a distance
  6. 17. the interaction of electric currents or fields and magnetic fields
  7. 18. the displacement of spectral lines toward longer wavelengths (the red end of the spectrum) in radiation from distant galaxies and celestial objects
  8. 19. the displacement of the spectrum to shorter wavelengths in the light coming from distant celestial objects moving toward the observer
Down
  1. 1. the state, fact, quality, or condition of being singular
  2. 2. molecules formed by atoms consisting of antiprotons, antineutrons, and positrons. Stable antimatter does not appear to exist in our universe
  3. 3. the branch of physical science that deals with the relations between heat and other forms of energy (such as mechanical, electrical, or chemical energy), and, by extension, of the relationships between all forms of energy
  4. 4. the science of the origin and development of the universe
  5. 6. the indefinite continued progress of existence and events in the past, present, and future regarded as a whole
  6. 7. the SI base unit of thermodynamic temperature (equivalent in size to the degree Celsius), first introduced as the unit used in the Kelvin scale
  7. 10. three-dimensional continuum containing positions and directions
  8. 11. the effect whereby the position or direction of an object appears to differ when viewed from different positions, e.g. through the viewfinder and the lens of a camera
  9. 12. the action of inflating something or the condition of being inflated
  10. 14. Forces any of the four basic forces
  11. 16. 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