Here's a good puzzle from Martin Gardner's Mathematical Circus. The book is out of print but used copies are cheap.
Problems involving weights and balance scales have been popular during the past few decades. Here is an unusual one invented by Paul Curry, who is well known in conjuring circles as an amateur magician
You have six weights. One pair is red, one pair white, one pair blue. In each pair one weight is a trifle heavier than the other but otherwise appears to be exactly like its mate. The three heavier weights (one of each color) all weigh the same. This is also true of the three lighter weights. In two separate weighings on a balance scale, how can you identify which is the heavier weight of each pair?
Our guest on the Cool Tools Show podcast this week is Adam Rubin. Adam is the New York Times best-selling author of Dragons Love Tacos, Robo-Sauce, and half a dozen other critically-acclaimed picture books. He is also a world-renowned inventor of illusions and was recently named Director of Puzzles and Games for ArtofPlay.com. Subscribe to […]
This puzzle designer, Fleb, has a YouTube channel that has in-depth videos of new and old puzzles. I love it. In this video, he tries out a puzzle called Sphaera, from Art of Play.
I was at Maker Faire Bay Area this weekend. One of my favorite things was a collection of simple handmade puzzles sitting on a table under an umbrella, away from the action. A Russian woman named Tatiana Ginzburg told me that the puzzles were part of some kind of mind enlightenment group she started. When […]
The Pry.Me Bottle Opener holds tens of thousands of times its own weight, and you can pick one up now from the Boing Boing Store.This remarkable keychain is considerably smaller than any of your keys, but don’t let that fool you: it can easily open any bottle, and could even tow a trailer full of […]
Guaranteeing your privacy online goes way beyond checking the “Do Not Track” option in your browser’s settings. To ensure that your internet activity is totally hidden from Internet Service Providers, advertisers, and other prying eyes, take a look at Windscribe’s VPN protection. It usually costs $7.50 per month, but you can get a 3-year subscription […]
This project management bundle will help you get organized and learn how to lead a team to success. You can pay what you want for these five courses when you pick them up from the Boing Boing Store.To help you become an invaluable asset for your company, this bundle includes a curated collection of professional […]