382: Dental Spider-bots

What would you want your clickbait title to be? What is a face? Why is an MRI so loud? Could Rome actually be built in a day? What is going on with the design of traffic lights? …Hank and John Green have answers!If you're in need of dubious advice, email us at hankandjohn@gmail.c ...  Show more

Can one physically de-escalate? Are my hands actually colder than other parts of my body? Why can I see my veins so well? What would the internet look like if it was a 3D space? How do I know if I’m doing enough for my students? What would it feel like to be hit by a gravitationa ...  Show more

So why don't we have mouth Roombas? Is the universe full of chickens? What scientific advances are happening? What was the first internet purchase? How do I convince my parents to let me check a bag? What is Twitter? What's the difference between a telescope and a camera? Are ...

Last year, Roman Mars teamed up with Hank Green to guest host Dear Hank & John -- this year he's back on the Greens' show once again, but this time with Hank's brother John Green (Turtles All the Way Down, The Fault in Our Stars, The Anthropocene Reviewed).

This week, on a brand new episode of Baffled. Dan and Conor bring 6 new facts that you can use as pub ammo or simply chuck away into the bin of nonsense. This weeks facts consist of Why you should cover your nose when you sneeze, Krusty the Clown from the Simpsons and a re-jig to ...  Show more

Why is it so hard to get a picture of the Milky Way? How much of our galaxy have we mapped? What the heck is a "barred spiral" and what does that have to do with our core? I discuss these questions and more in today's Ask a Spaceman!