Gonzalo Ciruelos set out to discover which country was the roundest in shape.
We can define roundness in many ways. For example, as you may know, the circle is the shape that given a fixed perimeter maximizes the area. This definition has many problems. One of the problems is that countries generally have chaotic perimeters (also known as borders), so they tend to be much longer than they seem to be.
For that reason, we have to define roundness some other way. We represent countries as a plane region, i.e., a compact set C⊂R2C⊂R2. I will define its roundness as
That's about where I tune out! Turns out the answer is Sierra Leone. Click through to see lots of mathy thingies on the screen, the runners-up, the least round countries, and the source code.
On this Thoughty2 video, Arran tells the fascinating tale of Bermeja, an allegedly 80 square kilometers island indicated on many maps, starting in the 16th and 17th centuries. The problem is, it doesn’t appear to actually exist. Many theories abound about what could have happened to it or why it would be on so many […]
Jake Berman writes, "I've drawn a series of maps showing the lost streetcar and subway systems of North America." He's selling them as prints.
Click to embiggen image Designer Jose Garcia at Zoca Studio Inc. used a familiar Bay Area Rapid Transit (BART) map to showcase the Fillmore’s 50 upcoming fall concerts. Ironically, you can’t take BART directly to this historic San Francisco music venue. Still, it’s a really neat design. Here’s the real BART System Map for comparison: […]
If you love tech gear, it can be difficult to live the green consumer life you want to be living. How can you fuel your desire to upgrade without contributing to the negative environmental impact the endless production of electronics causes? Shop refurbished. You might think, “Meh, I’ll pass on a used, busted up computer.” […]
Whether you own or rent your place, insurance on that home is a necessary hassle – but a new tech-driven company called Lemonade is starting to show that while it might indeed be a necessity, it doesn’t have to be a hassle. Here’s the way insurance typically works: You pay premiums and hope an accident never happens. […]
Bad news: Your brain reaches its peak performance sometime before you turn 26, and it’s all downhill from there. Good news: At any age, training with brain exercises has big-time benefits. Better news? The Ultimate Memory Mastery Bundle hooks you up with 20 hours of proven psychology and neuroscience techniques to boost your brain and […]