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Special Video ReportCourtesy: National Science Foundation, NBC-Learn and The National Science Teachers Association (NSTA) ![]() In celebration of the International Year of Chemistry, NBC Learn, the educational arm of NBC News, has teamed up with the National Science Foundation (NSF) and the National Science Teachers Association (NSTA) to produce Chemistry Now, a weekly, online, video series that uncovers and explains the science of common, physical objects in our world and the changes they undergo every day. Select a video by clicking on a topic below Chance Discoveries: Post-it NotesThis installment tells the story of 3M chemist Spencer Silver who, in the 1960s, created a weak adhesive with no apparent practical use -- until a colleague, Arthur Fry, used it to develop the first Post-It Notes. The pads were developed and first hit the market in 1980. Glue From Mussels: Purdue Chemist Synthesizes Wet-Set AdhesivePurdue University materials chemist and marine biologist Jon Wilker explains his work: creating a new synthetic glue by mimiicking the molecular structure of the sticky subtance secreted by mussels and oysters. The Chemistry of Chocolate"The Chemistry of Chocolate" uses chocolate-making to illustrate and explain chemical reactions related to heat, melting point, and formation of crystal structures. Water: H2O Molecules Made Clear"Water: H2O Molecules Made Clear" explains the structure, polarity, cohesive and adhesive properties that makes H2O a chemical essential for life. Mirror Molecule: Carvone"Mirror Molecule: Carvone" uses carvone, a chiral molecule, to explain how the "handedness" of a molecule can change its properties -- in this case giving us the differing flavors of spearmint, caraway and dill. ►Watch the video More NIE
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