| • Kamiokande neutrino detector • kanigen
 • kanigen coated
 • Kayser
 • Kayser unit
 • K-corona
 • Keck telescopes
 • Kellner eyepiece
 • Kellner ocular
 • Kellner's eyepiece
 • kelvin
 • Kelvin degree
 • Kennedy Space Center
 • Kepler ellipse
 • Keplerian orbit
 • Keplerian telescope
 • Kepler's equation
 • Kepler's first law
 • Kepler's laws
 • Kepler's second law
 • Kepler's third law
 • Kerr effect
 • kilocycle per second
 • kilo-electron-volt
 
 | • kilomegacycle per second • kiloparsec
 • kinematical relativity
 • kinematical viscosity
 • kinematic distance
 • kinematic parallax
 • kinematic relativity
 • kinematic viscosity
 • kinetic energy
 • kinetic temperature
 • King's furnace
 • Kirchhoff-Planck law
 • Kirchhoff's law
 • Kirchhoff's laws
 • Kirchhoff's principle
 • Kirkwood gaps
 • Kitt Peak observatory
 • knife edge
 • knife-edge
 • knife-edge analysis
 • knife-edge beam
 • knife-edge focusing
 • knife-edge pattern
 • knife-edge photograph
 
 | • knife edge test • knife-edge test
 • knocked-on atom
 • knock-on atom
 • knock-on electron
 • knot
 • knowledge
 • Kolmogorov spectrum
 • Konig eyepiece
 • Konkoly observatory
 • Kottamia observatory
 • K-radiation
 • Krauss radio telescope
 • Kronig selection rules
 • krypton standard
 • krypton wavelength standard
 • K-series
 • K-shell
 • K star
 • K-type star
 • Kueyen
 • Kutter telescope
 
 
 
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