Re-Release: Hard Labor (Edited & Updated)

Your body is almost always using energy, whether you’re going hard labor, or just sleeping. Play along with our Labor Quiz to see if you know the answers to questions like:

  • True or False: When you sleep your body consumes the caloric equivalent of 1 tablespoon of ketchup.
  • Thinking requires energy, so you burn a lot more calories thinking really hard
  • Celery is a “negative calorie food,” because it takes more calories to digest celery than you absorb from eating it.
  • It takes more energy to digest a sandwich made with whole wheat bread and real cheese than one made of white bread and American cheese.

Re-Release: Metallic or Metallica?! (Edited & Updated)

Is it a metal? Or is it METAL?!? (Like, the music. You have to say it with a growl to get the joke.)  In today’s show, K+K attempt to stump the XRAY DJs with phrases that might describe an actual scientific element and its metallic properties, or might be the name of a Metallica song.

Think you know your metals? Play along!

61. All I Wanna Do Is… Bicycle! Part II

On part 2 of this series about bicycles, K+K answer: How do you build a frame that won’t snap in half when you’re doing sick bike tricks? What is Carbon Fiber, and why is it all the rage? How are air molecules like a McDonald’s ball pit, and why are they a cycler’s biggest nemesis? Plus, tricks and tips to help you counter air resistance, using SCIENCE!

Ride like the wiiiiind!

60. All I Wanna Do Is… Bicycle! Part I

Here in Portland, we love our bicycles! But what is it about these seemingly ordinary machines that makes us so energetically efficient?  Join Kira & Keera (and Keera’s mom!) to learn how the pedals, tires, and gears of a bike work together to propel you 3x as fast as walking, without you having to put in any more effort!

It’s not efficient, but it sure is fancy!

59. Fat & Ashes – The Science of Soap and Bubbles

Based on the way it gets your dishes sparkling clean, and makes all those fanciful rainbow-colored bubbles, one could be forgiven for thinking that soap is actually magic! But like pulling the curtain back on the Great Wizard of Oz, K+K explain how all of soap’s greatest tricks work, like:

  • How soap traps grease and dirt
  • Why slimy fat and burnt ashes are premium soap ingredients
  • How soap bubbles escape the sink
  • How bubbles give birth to rainbows
The eggs from which rainbows are born

58. Sauer Power! (The Joys of Fermenting Cabbage)

So you’re ready to take the big leap, and start fermenting your own vegetables at home. Congratulations! This is an important time in any person’s life, and K+K want to make sure you have the support you need. In this episode, you’ll learn:

  • A fast, easy, and SAFE method for making sauerkraut
  • How to acquire good bacteria in your sauerkraut jar, without inviting in the pathogenic (a.k.a. icky) kind
  • What a “fermenting bacteria” is, and how they work their ferment-y magic
  • The epic-micro bacterial drama that plays out while you wait for your cabbage to become tangy, delicious, shelf-stable sauerkraut

57. Qualitative Analysis of a Dank Nug – Revisiting Weed Science

Back when they were young, nervous, and pressed for on-air time, Kira & Keera did an episode of Everything of Interesting about the science of cannabis and its constituent chemicals. Today they revisit the subject, armed with a lot more knowledge and far more confidence.

In this episode, K+K cover the difference between Indica & Sativa, how THC and CBD affect your brain, and whether or not nature wants us to get high.

56. The Science Behind Old Wives Tales

An apple a day keeps the doctor away.  Red sky in the morning, sailors take warning.  What can i say, sometimes its just easier to follow advice when it’s delivered in a rhyme scheme.

On today’s show, K+K & guest host Emily Gilliland explore some of the more modern Old Wives Tales, and discuss the science behind why they are or aren’t true.

55. Telepathy & Other Fun Party Tricks You Can Do With A Computer In Your Brain!

Have you ever moved things with your mind? How about communicated a thought telepathically, from your brain, directly to someone else’s brain?

If you’ve used Brain-Computer Interface technology, (or if you’re a Jedi) the answer is probably… yes! But if there were wires and a computer involved, does that count as true telepathic or telekenetic abilities? And will they let you into Jedi Academy with something like this on your head?

Keera Lindenberg & Joel Murphy, and the hat that sucks up brainwaves.

Thank you so much to Joel Murphy from OpenBCI for explaining the ins and outs of Brain Computer Interface, and for reading Keera’s brainwaves! To find out more about his work, or find the open source codes for building some of your own super rad BCI tech (see: exhibit A, Keera’s nifty robot-hat) visit openbci.com!