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- Petrichor abstract "Petrichor (/ˈpɛtrᵻkɔər/) is the earthy scent produced when rain falls on dry soil. The word is constructed from Greek, petra, meaning \"stone\", + ichor, the fluid that flows in the veins of the gods in Greek mythology.The term was coined in 1964 by two CSIRO researchers, Isabel Joy Bear (Australian) and Roderick G. Thomas (British), for an article in the journal Nature. In the article, the authors describe how the smell derives from an oil exuded by certain plants during dry periods, whereupon it is absorbed by clay-based soils and rocks. During rain, the oil is released into the air along with another compound, geosmin, a metabolic by-product of certain Actinobacteria, which is emitted by wet soil, producing the distinctive scent; ozone may also be present if there is lightning. In a follow-up paper, Bear and Thomas (1965) showed that the oil retards seed germination and early plant growth. This would indicate that the plants exude the oil in order to safeguard the seeds from germination under duress.In 2015, MIT scientists used high-speed cameras to record how the scent moves into the air. The tests involved approximately 600 experiments on 28 different surfaces, including engineered materials and soil samples. When a raindrop lands on a porous surface, air from the pores forms small bubbles which float to the surface and release aerosols. Such aerosols carry the scent as well as bacteria and viruses from the soil. Raindrops that move at a slower rate tend to produce more aerosols; this serves as an explanation for why the petrichor is more common after light rains.Some scientists believe that humans appreciate the rain scent because ancestors may have relied on rainy weather for survival.".
- Petrichor thumbnail Deszcz.JPG?width=300.
- Petrichor wikiPageExternalLink watch?v=lGcE5x8s0B8.
- Petrichor wikiPageExternalLink eid.
- Petrichor wikiPageExternalLink petrichor.html.
- Petrichor wikiPageID "1620257".
- Petrichor wikiPageLength "4773".
- Petrichor wikiPageOutDegree "24".
- Petrichor wikiPageRevisionID "707215756".
- Petrichor wikiPageWikiLink Absorption_(chemistry).
- Petrichor wikiPageWikiLink Actinobacteria.
- Petrichor wikiPageWikiLink Aerosol.
- Petrichor wikiPageWikiLink Australia.
- Petrichor wikiPageWikiLink Category:Olfaction.
- Petrichor wikiPageWikiLink Category:Precipitation.
- Petrichor wikiPageWikiLink Category:Rain.
- Petrichor wikiPageWikiLink Category:Soil.
- Petrichor wikiPageWikiLink Clay.
- Petrichor wikiPageWikiLink Commonwealth_Scientific_and_Industrial_Research_Organisation.
- Petrichor wikiPageWikiLink Geosmin.
- Petrichor wikiPageWikiLink Great_Britain.
- Petrichor wikiPageWikiLink Greek_language.
- Petrichor wikiPageWikiLink Ichor.
- Petrichor wikiPageWikiLink Nature_(journal).
- Petrichor wikiPageWikiLink Olfaction.
- Petrichor wikiPageWikiLink Ozone.
- Petrichor wikiPageWikiLink PBS.
- Petrichor wikiPageWikiLink Plant.
- Petrichor wikiPageWikiLink Rain.
- Petrichor wikiPageWikiLink Rock_(geology).
- Petrichor wikiPageWikiLink Soil.
- Petrichor wikiPageWikiLink File:Deszcz.JPG.
- Petrichor wikiPageWikiLinkText "Petrichor".
- Petrichor wikiPageWikiLinkText "petrichor".
- Petrichor wikiPageUsesTemplate Template:Citation.
- Petrichor wikiPageUsesTemplate Template:IPAc-en.
- Petrichor wikiPageUsesTemplate Template:Redirect.
- Petrichor wikiPageUsesTemplate Template:Reflist.
- Petrichor wikiPageUsesTemplate Template:Wiktionary.
- Petrichor subject Category:Olfaction.
- Petrichor subject Category:Precipitation.
- Petrichor subject Category:Rain.
- Petrichor subject Category:Soil.
- Petrichor hypernym Scent.
- Petrichor type Fashion.
- Petrichor comment "Petrichor (/ˈpɛtrᵻkɔər/) is the earthy scent produced when rain falls on dry soil. The word is constructed from Greek, petra, meaning \"stone\", + ichor, the fluid that flows in the veins of the gods in Greek mythology.The term was coined in 1964 by two CSIRO researchers, Isabel Joy Bear (Australian) and Roderick G. Thomas (British), for an article in the journal Nature.".
- Petrichor label "Petrichor".
- Petrichor sameAs Q1787101.
- Petrichor sameAs البيتريكور.
- Petrichor sameAs Petrichor.
- Petrichor sameAs Petricor.
- Petrichor sameAs Pétrichor.
- Petrichor sameAs פטריכור.
- Petrichor sameAs Petrikor.
- Petrichor sameAs Petricor.
- Petrichor sameAs ペトリコール.
- Petrichor sameAs 페트리코어.
- Petrichor sameAs Petrichor.
- Petrichor sameAs Petricor.
- Petrichor sameAs m.05h8f5.
- Petrichor sameAs Petrichor.
- Petrichor sameAs மண்வாசனை_(அறிவியல்).
- Petrichor sameAs Петрікор.
- Petrichor sameAs Petrichor.
- Petrichor sameAs Q1787101.
- Petrichor wasDerivedFrom Petrichor?oldid=707215756.
- Petrichor depiction Deszcz.JPG.
- Petrichor isPrimaryTopicOf Petrichor.
