This week, we learned about the dangers of stem cell treatment, explored the world of 3D motion capture and went on a vending machine shopping spree in Tokyo. Read on for Engadget's news highlights from the last seven days. Oh, and be sure to subscribe to our Flipboard magazine!

Stem cells have the potential to be one of modern medicine's most promising advances and we're still learning a lot about how they work. A paralyzed woman in the US discovered this, after an experimental treatment caused her to grow a nose-like tumor on her back.

The virtual simians in Dawn of the Planet of the Apes are impressively lifelike, but 3D motion capture animations haven't always been so awe-inspiring. Read on as Steve Dent explains the history behind this century-old technique.

If you've ever had to break in a new baseball glove, you know that the process take time -- usually a few months at best. Not so with Nike's new fielding mitt.

Why is it so hard to buy a Tesla? It's a combination of archaic laws and a stubborn automotive industry.

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Weekends with Engadget: Tokyo's vending machines, new buyer's guides and more!