Numberphile takes a look at three interesting infinite series. The first is 1 + 1/2 + 1/4 + 1/8 ... which equals 2. The second is 1 + 1/2 + 1/3 + 1/4 + 1/5 ... which equals infinity. The third is 1 + (1/2)2 + (1/3)2 + (1/4)2... which π2/6
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11:01 am Tue
Apr 2, 2019
Three interesting infinite series
The wonders of the isochronous curve
Curiosity Show was an Australian educational television show that ran from 1972 to 1990. The show’s hosts/creators, Morrison and Deane Hutton, now post clips of Curiosity Show on their YouTube channel. In this video we learn what an isochronous curve is and what makes it cool. [via The Kid Should See This]
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42 was the last remaining number below 100 which could not be expressed as the sum of three cubes - until now
Since 1954, scientists have been using computers to search for three numbers that could be cubed and summed to equal 42. Every other possible number below 100 already had a known solution, but the solution for 42 wasn’t found until recently. Here’s Numberphile on the significance of this discovery. Previously: 42 is the sum of […]
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This trig problem kept me up too late last night
My daughter is taking a precalc summer school course. Last night she was doing her homework, which was about verifying trigonometric identities. Out of the 25 homework problems, there was one that she got stuck on. I decided to give it a try and spent two hours on it without solving it. Here it is. […]
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The Kitchen Cube might just bring you back to cooking again
While all the downsides of stay-at-home orders and social distancing are evident, there are at least a few small silver linings to come out of all this. For many, this time spent indoors has meant a happy reintroduction to your very own kitchen. You know your kitchen. It’s usually the place that holds all your […]
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Get all the Photoshop and Lightroom training you need to create glorious images
Have you ever had more time to hone in on fine details than right now? Sure, at first glance, this might not seem like the time to get tripped up on the nitty-gritty of minutia. But how often are you ever going to have this much time to really stop and think about hows and […]
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Babbel's deal on a lifetime of language training is back, just in time for your quarantine
There are plenty of productive ways to spend time while stuck indoors. While it’s undoubtedly fun to binge all 15 seasons of Supernatural or sink days of playtime into an Overwatch campaign, learning something new is definitely a more meaningful and long-term beneficial use of open hours. And if you’re going to invest time in […]
