gamma-ray logging tool

  • 21LIGO — For the Latvian holiday Ligo, see Jāņi.LIGO stands for Laser Interferometer Gravitational Wave Observatory. Cofounded in 1992 by Kip Thorne and Ronald Drever of Caltech and Rainer Weiss of MIT, LIGO is a joint project between scientists at MIT… …

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  • 22STS-51 — Infobox Space mission mission name = STS 51 insignia = STS 51 patch.svg shuttle = Discovery launch pad = 39 B launch = September 12, 1993, 7:45 a.m. EDT landing = September 22, 1993, 3:56 am EDT on KSC SLF runway 15 duration = 9 days, 20 hours,… …

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  • 23Caesium — xenon ← caesium → barium Rb ↑ Cs ↓ Fr …

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