Ahabsnightmare

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Can you solve the '100 hat riddle' used by Google in job interviews?

A riddle used during job interviews for Google has proven to be no problem for artificial intelligence.<p>A team from the University of Oxford, Canadian …

Did you solve it? Are you smarter than Jo Nesbø?

Earlier today I set this puzzle:<p><b>The Three Switches</b><i>Downstairs in a house are three identical on-off switches. One of them controls the lamp in the attic. The puzzle is to work out which switch controls the lamp.</i><i>The rules are as follows. You are allowed to manipulate the switches all you like, and</i> …

Mathematics

Can you solve it? Are you smarter than Jo Nesbø?

Strangers often ask me to challenge them with mathematical brainteasers. It comes with the territory, I suppose.<p>My stock reply is to pose them Three Switches puzzle. It’s a classic that is easy to state rhetorically, and it really makes you think.<p>Can you solve it: are you smarter than a Hong Kong …

Mathematics

Portraits of a ravaged land: incredible photography by Nick Brandt

How an Engineer Earned 1.25 Million Air Miles By Buying Pudding

Air Miles are awesome, they can be used to score free flights, hotel stays and if you’re really lucky, the scorn and hatred of everyone you come in …

Arduino for the Rest of Us: How to Get Started

Could Arduino be the next tool in your home DIY toolbox?<p><b>You don't have to be a programmer</b> or an electrician to make your do-it-yourself projects smarter and more interactive. Arduino, the open-source microcontroller platform, was originally designed with creative laypeople in mind, and it may be …

Arduino

Timelapse of the Moon rising. Made by Dan... - Exploring Space

Fermat's Last Theorem by Simon Singh – book review

Simon Singh likes to work against the grain. He decides to write about a mathematical problem that gained iconic status because of a teasing, 300-year-old note in the margin of a book, but won't seem all that important to non-mathematicians. To make things tougher, the significance of the problem …