Are ghosts real… or not? That’s what Lily wants to know. To find out, we talk to a real-life Ghostbuster and science historian Efram Sera-Shriar, who takes us on a journey back in time to when the world’s most famous scientists became ghost investigators: Sitting in on séances, inventing ghost-hunting devices, and exposing the tricks of “spirit photography.” Did you know, Thomas Edison made plans to create a phone to call ghosts? Learn all this and more when you join us on the trail of spooooky spirit science!  You can learn more about Efram, and find a transcript of this episode on the blog on our website, sciencepodcastforkids.com.  Support us on Patreon! You’ll get ad free episodes, special chances to be on the show, and of course, birthday shoutouts, when you sign up at the $5 level at patreon.com/tumblepodcast. Find out what we’re up to - from live events, merch drops, and more when you subscribe to our newsletter, on sciencepodcastforkids.com. You can also follow us on Instagram and subscribe to our YouTube. And don't forget to visit our merch store!