Here's a puzzle from Martin Gardner's Mathematical Games column, which ran for many years in Scientific American. I found it in his anthology, My Best Mathematical and Logic Puzzles, which is only $3.76 on Amazon.
Imagine that you have three boxes, one containing two black marbles, one containing two white marbles, and the third, one black marble and one white marble. The boxes were labeled for their contents – BB, BW, WW – but someone switched the labels so that every box is now incorrectly labeled. You are allowed to take one marble at a time out of any box, without looking inside, and by this process of sampling you are to determine the contents of all three boxes. What is the smallest number of drawings needed to do this?
These Japanese single color jigsaw puzzles are appropriately named “Pure Hell.” They’re available with 1,000 or 2,000 tiny pieces, black or white. Pure Hell jigsaw puzzles (Amazon via Laughing Squid)
Amazon is selling this cool-looking speed cube for $5.21. I love the colors. I have been trying to solve Rubik’s Cube for decades. I’ll get it one day!
Watch the video to make sure my summary here is right: You are in a dark room with a pile of coins. The coins have a silver side and a gold side. You know two things about the coins. There are hundreds coins. 20 of the coins are silver side up and the rest are […]
The web is vast, and while there’s room for everyone, competition is stiff when it comes to landing on that first page of a Google search. That’s why developers aren’t afraid to spend exorbitant amounts of time and money on search engine optimization (SEO) to ensure their sites rank higher than others. However, not all […]
Many of us enjoy the aesthetic of vintage electronics, but trying to use most hardware from the 1950’s isn’t necessarily practical. This is especially true where speakers are concerned. While most of us can appreciate the old-school feel of retro speakers, they have a hard time matching the convenience and power delivered by today’s Bluetooth speakers. […]
Python is one of the most popular and versatile programming languages used by developers today, making it an ideal first choice for those looking to kickstart a career in programming. While you could go back to school or sign up for a pricey coding bootcamp, you can learn the essentials of coding with Python at […]