How Are Lane Lines Actually Painted on Highways? (Espresso)
Are those perfectly straight highway lines really being painted by a machine, or is there something a lot more human going on? We get into how highway lane markings actually get made, starting with th...
23 Jul 6min
Are Bats Actually Blind?
Are bats actually blind, or has everyone been saying that phrase wrong for centuries? We get into what bats can really see, starting with echolocation and why it evolved for hunting in darkness rather...
21 Jul 10min
How Do Cruise Ships Really Float? (Refresher)
Why does a solid metal quarter sink straight to the bottom, while a cruise ship weighing over 100,000 tons floats without a problem?We get into the real physics behind it, starting with Archimedes' pr...
19 Jul 10min
Can We Actually Defend Earth From a Giant Asteroid?
Could we actually stop an asteroid before it hit Earth, or are we just hoping nothing big ever shows up?We get into the real state of planetary defense, from how NASA's DART mission tested asteroid de...
17 Jul 11min
100th Episode Spectacular: 100 Fun Facts (or as many as I can)
What if celebrating 100 episodes meant learning 100 things you probably never knew?On our milestone episode, I pull together a rapid-fire collection of surprising facts spanning science, history, biol...
14 Jul 14min
Is Microwaving Your Food Actually Harmful?
Did you actually just nuke your food, or is everything you think about microwaves completely wrong? The episode gets into the real science behind microwave ovens, covering non-ionizing radiation, how ...
10 Jul 13min
Why Are Your Veins Blue If Your Blood Is Red? (Espresso)
────────────────Enjoying the show? Follow Fool's FAQ and drop a 5-star rating & review - it's hands-down the best way to help other curious people find us.Want to support the show? Toss a few bucks in...
8 Jul 5min
Did Thomas Edison Really Invent the Light Bulb?
Did Thomas Edison actually invent the light bulb, or did he just get the best publicist?The episode traces the real history of the light bulb from Humphry Davy's arc lamp experiments in the early 1800...
7 Jul 11min
