General Cool Tech, Gadgets, Etc Thread

[jefferz]

I always see some fancy new tech that I think is really neat, but there's not enough there to make a thread about it. So I figured I'd make a general tech thread. Post cool things you've come across or things you do. Anything tech, gadget, etc related will work.
It could be anything from:
look at this cool robot



or here's a business card with a built in heart beat monitor

A company called MobilECG has created a business card that's directly connected to your field: it has a built-in ECG that actually works. According to its blog post, the device has sensors that measure "the real ECG signal between the users' hands," so long as their thumbs are touching the finger pads.

http://www.engadget.com/2016/03/02/business-card-ecg/

or this marble music thing