(repeat) Fir tree needles embedded in carpet are a holiday headache. Why not decorate a genetically-modified, needle-retaining tree instead? It’s just another way that science is relevant to the holidays. We have more. How about science experiments on fruitcake? There’s a competition that includes launching it with a pneumatic device, running a heavy electric current though it, or blasting it with a blowtorch. Meanwhile, physics provides insight into those tricky how-does-he-do-it questions about Santa’s delivery rounds.   Finally, step away from the relatives and consider the implications of the winter solstice.  Enjoy a better holiday through science! Guests: Jenna Gallas – Special Event Coordinator, Manitou Springs Chamber of Congress, Colorado Laura Kramer – Manager of Science Conductors, Science Museum of Virginia, Richmond Lilian Matallana – Research Associate, Department of Forestry and Environmental Resources, North Carolina State University, Raleigh Ben Orlin – Math teacher, and author of “Math with Bad Drawings: Illuminating the Ideas That Shape Our Reality” Ethan Siegel – Theoretical astrophysicist and owner of “Starts with a Bang!” blog Andrew Fraknoi – Astronomer and educator, author of “Introduction to Astronomy” Learn more about your ad choices. Visit megaphone.fm/adchoices