• 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 
 
 
 |