Learn about why you’re almost completely made up of empty space; what defines a second of time; and where you can watch the Lyrid meteor shower this Tuesday.In this podcast, Cody Gough and Ashley Hamer discuss the following stories from Curiosity.com to help you get smarter and learn something new in just a few minutes:You're Almost Completely Made Up of Empty Space — https://curiosity.im/2Gq85KQHere's How You Can Watch the Lyrid Meteor Shower in 2019 — https://curiosity.im/2GcOP3eAdditional resources discussed:Why is a day divided into 24 hours? (Intermediate) | Astronomy Department at Cornell University — http://curious.astro.cornell.edu/physics/161-our-solar-system/the-earth/day-night-cycle/761-why-is-a-day-divided-into-24-hours-intermediateWhy are there 24 hours in a day? | ABC Science — http://www.abc.net.au/science/articles/2011/11/15/3364432.htmUsing Particle Physics for Measurement Shows Just How Far Measurement Has Come | Curiosity.com — https://curiosity.im/2GpdZfjIf you love our show and you're interested in hearing full-length interviews, then please consider supporting us on Patreon. You'll get exclusive episodes and access to our archives as soon as you become a Patron! https://www.patreon.com/curiositydotcomDownload the FREE 5-star Curiosity app for Android and iOS at https://curiosity.im/podcast-app. And Amazon smart speaker users: you can listen to our podcast as part of your Amazon Alexa Flash Briefing — just click “enable” here: https://curiosity.im/podcast-flash-briefing. Find episode transcript here: https://curiosity-daily-4e53644e.simplecast.com/episodes/youre-almost-entirely-empty-space-what-defines-seconds-and-the-lyrid-meteor-shower Hosted on Acast. See acast.com/privacy for more information.