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Fold and Cut Theorem - Numberphile

zen habits

When we wake up in the morning, many of us automatically go on our phones or computers and start reading, checking messages, responding to things, …

This guy traveled to every country in the world before turning 40 — here are the countries he thinks everyone should visit

So when people ask him which country was his favorite, he has a hard time picking just one.<p>But there are 12 countries he thinks everyone should visit at some point in their lives.<p>Keep scrolling to see what those countries are, and why he thinks they're worth visiting.


Observing Lessons, So What’s Changed?

A year on from when we stopped grading individual lessons I’m wondering how much progress we have made. Just before the summer I reviewed our new …

Sigma 50mm DG HSM Art Lens Tested, See How it Stacks Up Against the Otus

Sigma made quite a splash at CES this year when the company not only announced that a 50mm f/1.4 lens would be added to its superb Art series, but …