Speed Sensor

The bulky horn antenna of a traditional radar gun has been compressed down to a square panel about 40 millimeters on a side. Intended for athletes and coaches looking to improve performance, the Pocket Radar uses Doppler radar to measure the speed of an object to within 1.6 kilometers per hour.
Product: Pocket Radar
Cost: $250
Availability: Spring 2010
Source: pocketradar.com
Companies: Pocket Radar
Keep Reading
Most Popular
A Roomba recorded a woman on the toilet. How did screenshots end up on Facebook?
Robot vacuum companies say your images are safe, but a sprawling global supply chain for data from our devices creates risk.
A startup says it’s begun releasing particles into the atmosphere, in an effort to tweak the climate
Make Sunsets is already attempting to earn revenue for geoengineering, a move likely to provoke widespread criticism.
10 Breakthrough Technologies 2023
These exclusive satellite images show that Saudi Arabia’s sci-fi megacity is well underway
Weirdly, any recent work on The Line doesn’t show up on Google Maps. But we got the images anyway.
Stay connected
Get the latest updates from
MIT Technology Review
Discover special offers, top stories, upcoming events, and more.