Is intelligence related to an increased likelihood of recreational drug use? It's an interesting hypothesis, and one that's been gaining momentum in recent years.
Tagged With maths
Video: The story of the history of maths and how zero came to be is actually quite fascinating! They should have taught us that instead of actual maths in high school, if you ask me. Thankfully, Hannah Fry tells us in the animation below all we need to know. There's fascinating bits about how the number system (and zero) was resisted by the Romans, and why it's very important to calculus and things like the binary system.
The dishwasher! The perennial optimization problem. Even the chronically untidy have been known to harbour strong opinions on efficient loading technique. But did you know dishwasher manuals actually include photos and illustrations of ideal rack layouts? (Be honest — did you even realise your dishwasher had a manual?)
Guess the Correlation is a very simple game indeed: Look at a scatter plot, guess the correlation coefficient, win or lose. Are you mathematically minded enough to take on the challenge?
A new fractal analysis of London's dense network of streets and intersections reveals that a green belt meant to encourage migration to the suburbs had the opposite effect. The city has just became denser. People really seem to love urban living, especially in a thriving city like London. The work could shed light on how modern cities evolve, and help guide future urban growth policies.
We now know a little bit more about the dynamics of chocolate fountains, thanks to the efforts of Adam Townsend, a graduate student at University College London. He decided to figure out why that "curtain" of molten chocolate always falls inwards and the ensuing paper appeared last month in the European Journal of Physics.
Calculus: A word that triggers involuntary fear spams in the best of us. But the days of slogging through tedious textbook derivatives are over, if you want them to be. For the past few years, people across the world have studied calculus for free online, by exploring a set of gorgeous, dynamic animations.
Most people will probably remember the times tables from primary school quizzes. There might be patterns in some of them (the simple doubling of the 2 times table) but others you just learnt by rote. And it was never quite clear just why it was necessary to know what 7 x 9 is off the top of your head.
Video: The MinutePhysics series has always been a goldmine of interesting facts and science explainers. But prepare to have your mind blown wide open this time as Henry Reich shows you an alternate way to manually subtract large numbers — by doing addition instead.