The pen tool in Photoshop and Illustrator is a fantastic way to draw, but it's hard to get the hang of using it. The Bézier Game is an interactive tutorial that teaches you how to use it. The pen tool ...

You may be an ace with a Rubik’s cube, or even a yo-yo champion, but have you mastered that other geek hobby? You know, pen spinning? While most of us probably do it unconsciously while deep in ...

The "Sonic Reverse." The "Double Charge Combo." The "Thumb Around." What do these terms have in common? Get your mind out of the gutter. They're pen spinning tricks. And they're just a couple of the ...

The use for humans in the world of robotics, even as teachers, is shrinking thanks to AI. NVIDIA Research has announced the creation of Eureka, an AI agent powered by GPT-4 that has trained robots to ...