For millennia people used marijuana for fun and medicine. Not until the 20th century that was it vilified, unfairly say many. Weed has done lots of good things, from alleviating cancer symptoms to unlocking secrets of the brain. Learn all about pot here.
It’s one of America’s biggest accomplishments in the 20th century, a slab of concrete holding back one of the country’s most finicky rivers, providing water and electricity to a swath of majors cities that otherwise couldn’t exist.
You may have played with a yo-yo before -- perhaps you've even walked the dog -- but do you know about the physics behind what makes a yo-yo sleep and wake up? Learn all about inertia, angular momentum and the history of the yo-yo in this episode of SYSK.
The electric chair is an all-American invention. It spread almost nowhere else in the world as a capital punishment but worked overtime in the States. Despite the terrible sights and sounds an electrocution produces, it was created out of humaneness.
For about 375 million years, plants have been using pollen (aka plant sperm) to propagate their species. And the technique has stuck around because it works. Join Chuck and Josh for a cozy look at the ins and outs of plant reproduction.
Rape kits are simple forensic evidence collection kits used when someone is sexually assaulted. But the story is deeper than this. Learn all about rape kits, the sad backlog problem, and what you can do to help, in today's episode.
Immigration systems regulate the flow of foreign immigrants into any given country. But why is immigration such a controversial topic, especially in the United States? In this episode, Josh and Chuck delve into the details and debate behind immigration.
Anyone who likes Led Zeppelin, plays Dungeons & Dragons, or worships the rising sun at Stonehenge on the vernal equinox can tell you druids are cool. But archaeologists will tell you we can’t even be certain druids existed. Buckle in for a history mystery!
It wasn't until the was developed and despite its co-existence alongside English, a user would be hard-pressed to sign with a British person. Find out about the independent evolution of sign language in the U.S. and how intuitively sensible it is.
Disgust is an odd thing. It makes sense that we would feel a sense of revulsion at the thought of putting rotten meat in our mouths – that’s pure evolution. But why would we feel the same emotion at the thought of weird sex or from hearing a racist rant?