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Soil and water being splashed by a raindrop. Petrichor (/ ˈ p ɛ t r ɪ k ɔːr / PET-ri-kor) [1] is the earthy scent produced when rain falls on dry soil.The word was coined by Isabel Joy Bear and Richard Grenfell Thomas [2] from Ancient Greek πέτρα (pétra) ' rock ' or πέτρος (pétros) ' stone ' and ἰχώρ (ikhṓr), the ethereal fluid that is the blood of the gods in Greek ...
Geosmin (/ dʒ i ˈ ɒ z m ɪ n / jee-OZ-min) is an irregular sesquiterpenoid with a distinct earthy or musty odor, which most people can easily smell. The geosmin odor detection threshold in humans is very low, ranging from 0.006 to 0.01 micrograms per liter in water. [1]
Petrichor, the earthy scent produced when rain falls on dry soil; Scent of Rain, 2007 play by Mark Dunn; The Scent of Rain in the Balkans, historical novel by Gordana Kuić; The Scent of Rain in the Balkans, an adaptation of the Gordana Kuić novel; The Scent of Rain and Lightning, a collection of short stories by Nancy Pickard
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2-Methylisoborneol (MIB) is an irregular monoterpene derived from the universal monoterpene precursor geranyl pyrophosphate.MIB and the irregular sesquiterpene geosmin together account for the majority of biologically-caused taste and odor outbreaks in drinking water worldwide. [1]
After coming back from a spacewalk and pulling off their helmets, astronauts are hit with the scent of cosmic molecules that hitch a ride on their suits. According to their descriptions, the smell ...
Star jelly (also called astromyxin, astral jelly) is a gelatinous substance sometimes found on grass and less commonly on the branches of trees. [1] According to folklore, it is deposited on the Earth during meteor showers. It is described as a translucent or grayish-white gelatin that tends to evaporate shortly after having "fallen".
Sleet is also called ice pellets. Freezing rain occurs when the wedge of warm air aloft is much thicker, allowing the raindrop to survive until it comes in contact with the cold ground. A coating ...