出典:Wiktionary
出典:『Wiktionary』 (2026/03/11 01:26 UTC 版)
From Ancient Greek θολός (tholós, “muddy”) + -in. Coined by Carl Sagan and Bishun Khare in 1979. From the muddy coloration that this class of chemical compounds appear to have, when observed on the Saturnian moon Titan, and from Miller–Urey-style experiments.
tholin (plural tholins)
出典:Wikipedia
出典:『Wikipedia』 (2011/01/22 19:25 UTC 版)
Tholin [after the ancient Greek word θολός (tholós) meaning "not clear"] is a heteropolymer molecule formed by solar ultraviolet irradiation of simple organic compounds such as methane or ethane. Tholins do not form naturally on modern-day Earth, but are found in great abundance on the surface of icy bodies in the outer solar system. They usually have a reddish-brown appearance.