Curvature at Cairo
I was flipping through Gravitation [1] this weekend and was curious about an illustration on page 309. This post reproduces that graph. The graph is centered at Cairo, Egypt and includes triangles whose side lengths are the distances between cities. The triangles are calculated using only distances, not by measuring
Read moreCalculating the intersection of two circles
Given the equations for two circles, how can you tell whether they intersect? And if they do intersect, how do you find the point(s) of intersection? MathWorld gives a derivation, but I’d like to add the derivation there in two ways. First, I’d like to be more explicit about the
Read moreThe battery business is booming and Zeekr kicks off it IPO roadshow
The Station is a weekly newsletter dedicated to all things transportation. Sign up here — just click The Station — to receive the newsletter every weekend in your inbox. Subscribe for free. Welcome back to The Station, your central hub for all past, present and future means of moving people and packages from
Read moreNever express your ‘use of funds’ slide as percentages
When investors look at a startup slide deck, they are looking for something very specific. Yes, they want to know if the team is great and the market is huge and the problem is worth solving and the solution makes sense. Of course. But another thing they are looking for
Read moreLooking for your next book? These 9 authors have reading recommendations for you
What’s the hardest part of reading? More often than not, it’s picking a good book. “L’embarras du choix,” as we say in French: Presented with infinite options, it becomes very hard to make a decision. That’s why recommendations are so helpful. And who’s best placed to recommend books than people
Read moreBetter.com’s public market debut was Miserable.com
Welcome back to The Interchange, where we take a look at the hottest fintech news of the previous week. Better.com finally went public last week, and the stock’s performance was worse than expected. Affirm, on the other hand, saw its shares get a boost on the back of a better-than-expected earnings
Read moreUnity3D + Amazon GameLift: Focus on The Realtime Script
Write your own script and take control over the game server!In a previous article, I showed how to build an entire real-time multiplayer game with Amazon GameLift and Unity3D. The process implicates creating game sessions and player sessions with Lambda, guest access to the services with Cognito, and a game server
Read moreMy experience at Medium Day
I look forward to more!Continue reading on Better Programming »
Read moreMicrosoft brings Python to Excel, Cruise reduces fleet following crash, and MrBeast creates controversy
Hello, folks, and welcome to Week in Review (WiR), TechCrunch’s regular newsletter that covers the biggest happenings in tech over the past few days. Haven’t been able to follow the news closely? Don’t sweat it. WiR will get you up to speed. In this edition of WiR, we cover Microsoft
Read moreA Brazilian phone spyware was hacked and victims’ devices ‘deleted’ from server
A Portuguese-language spyware called WebDetetive has been used to compromise more than 76,000 Android phones in recent years across South America, largely in Brazil. WebDetetive is also the latest phone spyware company in recent months to have been hacked. In an undated note seen by TechCrunch, the unnamed hackers described
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