The true science behind our most popular urban legends. Historical mysteries, paranormal claims, popular science myths, aliens and UFO reports, conspiracy theories, and worthless alternative medicine schemes... Skeptoid has you covered. From the sublime to the startling, no topic is sacred. Weekly since 2006.
https://skeptoid.com
episode 813: Why You Need to Care About Concrete
Concrete will remain one of our most important materials for decades — but there's a big problem with it.