In this episode, the team discusses rockets with rocket propulsion engineer, Calvin Phillips. Follow Calvin on Twitter @CalDPhillipsJr ! Our merch store is now live! Go to idontknowaboutthat.com for shirts, hoodies, mugs, and more! Subscribe to our Patreon at patreon.com/IDKAT for ad free episodes, bonus episodes, and more exclusive perks! Tiers start at just $2! Go to JimJefferies.com to buy tickets to Jim's upcoming tour, The Moist Tour. Follow Us: Jim Jefferies Website: https://www.jimjefferies.com Jim Jefferies Instagram: https://www.instagram.com/jimjefferies Jim Jefferies Facebook: https://www.facebook.com/JimJefferies Jim Jefferies Twitter: https://twitter.com/jimjefferies Forrest Shaw Website: http://www.forrestshaw.net Forrest Shaw Instagram: https://www.instagram.com/forrestshaw Forrest Shaw Twitter: https://twitter.com/forrestshaw Kelly Blackheart Instagram: https://www.instagram.com/kellyblackheart Jack Hackett Instagram: https://www.instagram.com/Jack_hackett Luis Castillo Instagram: https://www.instagram.com/luis.d.castillo