What is dust made of? – TED Ed by Michael Marder

Less than a tenth the size of an ant, a dust mite’s whole world is contained in the dusty film under a bed or in a forgotten corner. This realm is right under our noses, but from our perspective, the tiny specks of brilliant color blend together into a nondescript grey. What are these colorful microscopic particles? Michael Marder explores the science of dust. Continue reading

Early forensics and crime-solving chemists – Deborah Blum

In a CSI age, we take forensic science for granted. New York did not have a medical examiner or forensic toxicologist until 1918, whose eventual arrival changed the landscape of crime investigation forever. At TEDYouth 2012, Deborah Blum prompts the audience to solve crimes with chemistry.

Talk by Deborah Blum.