Missed one of the many videos from our coverage from TechEd 2013 North America this week? We've rounded them all up here in a single handy post. Enjoy!
TechEd 2013: The Complete Lifehacker Videos
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The maximum number of face turns needed to solve the classic Rubik's cube is 20, and the maximum number of quarter turns is 26. It took 30 years to discover these numbers, which were finally proved by Tomas Rokicki and Morley Davidson using a mixture of mathematics and computer calculation. (The puzzle does have 43 quintillion possible configurations after all.) So how did the current world-record holder SeungBeom Cho manage to solve Rubik's cube in under five seconds? (4.59 seconds to be exact.)
After moving up from Adelaide, one thing was immediately clear to me. Sydney drivers spend a lot of money registering their vehicles. To better support those injured on the roads and to reduce Green Slip costs for vehicle owners, the NSW Government reformed the CTP Green Slip scheme and implemented a new scheme that started on December 1, 2017. 4.2 million vehicle owners are eligible for a refund. Here's how to claim your refund.