When a Smell Fades, Where Does It Go?

It does not disappear. Four different things happen to it. — Chapters 0:00 Still Warm, Still Closed, Already Gone 1:27 Before Smell Becomes Smell 3:40 A Molecule Must First Reach the Air 5:07 Hypothesis One — It Spread Out 6:59 Hypothesis Two — It Left 8:47 Hypothesis Three — The Walls Kept It 11:06 Hypothesis Four — Chemistry Ended the Molecule 12:54 The Nose Does Not Report Constantly 15:01 Figure and Ground, and the Longer Memory 16:43 The Answer — Four Endings and One Illusion 18:23 Life Reframe — The World Beneath the Threshold — A new episode every week. This channel takes one ordinary thing and follows it until it stops being ordinary. If you spotted an error, say so in the comments. Corrections get pinned. — Credits Footage via Pexels: ROMAN ODINTSOV Red fox catches a vole - Tolyatti, Russia (cropped): Andrey Gulivanov, via Wikimedia Commons, CC BY 2.0 (https://creativecommons.org/licenses/by/2.0/) · https://commons.wikimedia.org/wiki/File:Red_fox_catches_a_vole_-_Tolyatti,_Russia.jpg Starr-140917-1898-Coffea arabica-steaming hot coffee in cabin-Holua Hilton HNP-Maui (cropped): Forest and Kim Starr, via Wikimedia Commons, CC BY 3.0 US (https://creativecommons.org/licenses/by/3.0/us/) · https://commons.wikimedia.org/wiki/File:Starr-140917-1898-Coffea_arabica-steaming_hot_coffee_in_cabin-Holua_Hilton_HNP-Maui_(24950780600).jpg Images (cropped): Coffee - Kávé (Benjamin Balázs from Hungary); Smoke of incenses Sri Dalada Maligawa (Bergentroll); Bread, fresh from the oven - Massachusetts (Daderot): Wikimedia Commons (CC0) · Roasted coffee beans (MarkSweep); Brumbaugh Christopher Dock Schoolroom Bench and Desk (Unknown photographer): Wikimedia Commons (Public Domain) · Vilhelm Hammershøi, "Moonlight, Strandgade 30 (1900–1906)"; Unknown artist, "Room from the Hart House, Ipswich, Massachusetts (1680)": The Metropolitan Museum of Art, Open Access (CC0) · Earth Observations taken by Expedition 30 crewmember (iss030e007397) (iss030e007397, NASA JSC)