The Most Mysterious Object in the Universe – by Physics Girl

Physics Girl astrophysics series – Brown Dwarfs are among the most recently observed objects in the universe. They have at MOST 8% the mass of the Sun. The lower mass boundary is not known! So they are halfway between stars and gas giant planets. Astrophysicist Daniella Bardalez Gagliuffi sits down with Dianna Cowern to discuss the latest research and the history of Brown Dwarfs Continue reading

Flame-Retardant Balloon – Flinn Scientific Canada

Show students a “special” balloon that doesn’t pop when exposed to a flame. Students will come up with very clever ideas for why the balloon doesn’t pop. But, when all is said and done, the “magic” is the result of important scientific principles involving specific heat capacity and heat transfer. Continue reading