Python -O won’t magically make every script faster, but in the right workloads it’s a free win—here’s how to test it safely.

In mathematics, proofs can be written down and shared. In cryptography, when people are trying to avoid revealing their secrets, proofs are not always so simple—but a new result significantly closes ...

NFC tags are so useful and customizable, and it's quite simple to make your own. Here's what you can do with it and how.