Jessica in Omaha, Nebraska, was excited to discover an arrowhead, then puzzled when archaeologists told her that its age was probably between 6000-3000 BP. Why do some scientists measure time with the designation BP, or Before Present, instead of BC or BCE? It has to do with the advent of carbon dating techniques. This is part of a complete episode.
- Up Your Alley (episode #1504) 07/30/2018: Book recommendations, including a collection of short stories inspired by dictionaries, and a techno-thriller for teens. Or, how about novels with an upbeat message? Publishers... [more]
- Piping Hot (episode #1503) 07/23/2018: The game of baseball has alway inspired colorful commentary. Sometimes that means using familiar words in unfamiliar ways. The word stuff, for example, can refer... [more]
- Mimeographs and Dittos (episode #1502) 06/24/2018: In this episode: How colors got their names, and a strange way to write. The terms blue and orange arrived in English via French, so... [more]
- Spicy Jambalaya 06/18/2018: Teen slang from the South, and food words that are tricky to pronounce. • High schoolers in Huntsville, Alabama, told Martha and Grant about their... [more]
- Chopped Liver 06/10/2018: There's a proverb that goes "beloved children have many names." At least, that's true when it comes to the names we give our pets. "Fluffy"... [more]