785,248 videos · Physics, biology, chemistry, astronomy and the mathematics underneath them.
11:14A 11-minute chemistry video from KhanAcademyEspañol covering Evolución de la teoría atómica, the section of OpenStax Chemistry 2e (Spanish edition) it is paired with.
29:18A 29-minute physics worked example from The Glaser Tutoring Company, solving exercise 8.49 of OpenStax College Physics 2e step by step.
20:09A 20-minute physics worked example from The Glaser Tutoring Company, solving exercise 2.40 of OpenStax College Physics 2e step by step.
14:10A 14-minute physics worked example from The Glaser Tutoring Company, solving exercise 2.51 of OpenStax College Physics 2e step by step.
10:07A 10-minute physics worked example from The Glaser Tutoring Company, solving exercise 20.17 of OpenStax College Physics 2e step by step.
13:43A 14-minute chemistry worked example from The Glaser Tutoring Company, solving exercise 21.41 of OpenStax Chemistry 2e step by step.
27:13A 27-minute chemistry worked example from The Glaser Tutoring Company, solving exercise 8.19 of OpenStax Chemistry 2e step by step.
8:17A 8-minute physics worked example from The Glaser Tutoring Company, solving exercise 2.9 of OpenStax College Physics 2e step by step.
18:26A 18-minute physics worked example from The Glaser Tutoring Company, solving exercise 2.39 of OpenStax College Physics 2e step by step.
9:11A 9-minute chemistry worked example from The Glaser Tutoring Company, solving exercise 9.65 of OpenStax Chemistry 2e step by step.
1:03:31An hour-long tour of Earth's 4.5-billion-year history at a constant timescale, from formation to humans.
24:57The story of Thomas Midgley Jr., who introduced leaded petrol and CFCs, and the science of how both harmed health and the ozone layer.
31:12How attempts to prove Euclid's parallel postulate led to hyperbolic and elliptic geometry.
20:46How banded iron formations formed when early oxygen met dissolved iron in the oceans, and why that rock supplies most of today's iron.
32:32Markov chains from the Nekrasov–Markov dispute through card shuffling, Monte Carlo methods and PageRank.
35:16How antibiotic resistance evolves and how overuse undermined these drugs.
33:52How spoiled sweet clover led to warfarin and the discovery of blood thinners.
23:39The discovery of insulin by Banting, Best, Collip and Macleod.
29:41The full story of penicillin, from Fleming's observation to Florey and Chain and wartime mass production.
22:47How James Black developed beta blockers and how they work on the heart.
32:15How recombinant DNA, Genentech and synthetic insulin launched the biotech industry.
24:15A tour inside a research nuclear reactor with explanation of fission and reactor safety.
26:32From willow bark to Bayer's aspirin: how salicylates became a drug and how they work.
12:15Explains what atoms are and how scientists discovered them, from Dalton to Rutherford.
17:07Sulfa drugs, the first synthetic antibacterials, and the 1937 Elixir Sulfanilamide disaster that created modern drug regulation.
11:45Why earthworms are invasive in the Great Lakes region and how they change northern forests.
1:06:22A 66-minute video from Museum of Natural History, University of Oxford: “Drawn to Nature: Beetles”.
25:49A 26-minute video from C'est pas sorcier: “Comment savons et lessives nous rendent propres ? - C'est pas sorcier”.
26:11A 26-minute video from C'est pas sorcier: “Les incroyables secrets des escargots ! - C'est pas sorcier”.
27:00A 27-minute video from C'est pas sorcier: “Le plastique ca nous emballe - C'est pas sorcier”.
13:10A 13-minute video from NPTEL-NOC IITM: “Charles Sherrington - Insights into life and work by Molnar & Brown”.
26:12A 26-minute video from C'est pas sorcier: “C'est pas sorcier -REQUINS”.
14:57A 15-minute video from MaxPlanckSociety: “Synästhesie – Farben hören, Töne schmecken | Wissen Was mit MrWissen2go | English subtitles included”.
28:59A 29-minute video from SCIENCE CHANNEL（JST）: “科学的民俗学探訪事典 暮しの知恵を科学する （３）「土」”.
42:26A 42-minute video from DW Documental: “The fight for water | DW Documentary”.
8:33A 9-minute video from Artem Nikolaev: “Операция - Клипирование аневризмы правой задней мозжечковой артерии”.
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