07.29.2019 - By iHeartPodcasts
Sit back. This might sting. In this episode of Invention, Robert and Joe explore the history of hypodermic needles: what came before in human and evolutionary history and where we’re going with drug injections and blood withdrawls. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.