Archives: physics

Happy Holidays from Planet Watch-PW050

In this podcast we hear from family and far flung friends (in Norway and Virginia) and explore the traditions, rituals and science behind winter time and solstice. Rachel reads from Jean Ritchie’s “Singing Family of the Cumberlands” about old Christmas and the first Christmas trees to come into the mountains in the 1930’s. Plus, talk • Read More »


A Passive House That Uses 80% Less Energy-PW049

Chie Kawahara and Kurt Hurley designed their passive house to save tons of energy. Find out how they turned a 95-year old house into a modern energy saving miracle. And they did it without solar electricity! More at Midorihaus.com. Plus, what’s greener, fake or real Christmas trees? Alexis Navarro explores this vexing question.  Air Date: • Read More »


Mitigating Global Warming by Engineering Carbon Out of the Atmosphere – PW002

Global warming, or human-induced climate change, is a “hot topic” worldwide. Innovations in sustainable energy technologies are being implemented around the world to help reduce CO2 in Earth’s atmosphere, with positive impacts on the climate. But even if CO2 emissions trend downward globally, we will not be able to sufficiently mitigate climate change by just replacing • Read More »