Pain Scales: Yeeeow!
Pain is subjective; it is whatever the person experiencing it says it is. But to effectively treat pain, it helps to quantify it, which is why medicine came up with pain scales. Learn more about your...
14 Mar 201743min
History of the Trail of Tears, Part II
In the second of two parts, what was once a voluntary resettlement program becomes a violent, forced relocation under the leadership of President Andrew Jackson. Learn more about your ad-choices at h...
9 Mar 201742min
History of the Trail of Tears, Part I
In this first of two episodes on the Trail of Tears, learn about the forces that converged to create the series of events that formed the basis of what may be the most brutal decade in American histor...
7 Mar 201752min
How Optical Illusions Work
Now you see it, now you don't — optical illusions can fool us into seeing what's not actually there. But what causes that disconnect between perception and reality? Learn all about this visual tricker...
2 Mar 201740min
How Free Speech Works
Freedom of speech and the press are values vital to American democracy. But the First Amendment doesn't really define free speech, and plenty of expressions are restricted. Learn all about the ins and...
28 Feb 20171h 4min
How Famines Work
It’s common knowledge that famines are usually caused by major droughts: Rain doesn’t fall, crops don’t grow, and people go hungry. But recent research suggests that while weather may trigger famines,...
23 Feb 201750min
The ins and outs of the DEATH TAX
The estate tax, also known as the death tax, is not new. It's actually been around in some form since ancient Rome. Some say it's a necessary tax to help prevent resting on your inheritance laurels. O...
21 Feb 201749min
The Black Panther Party
The Black Panther Party was a complex political movement that was unfairly painted as a militant group who hated white people. Far from it, they were actually men and women trying to effect change in ...
16 Feb 20171h 3min
