In most cities, bike commuters lucky enough to have their own lanes still cannot trigger traffic signals, forcing them either to wait for a car to pull up, or cross the street to push the crosswalk button. A microwave motion sensor can help by determining when bikes are present.
By Josh DeanPosted 06.30.2011 at 3:08 pm 0 Comments
The idea of a robot assuming control of your car takes some getting used to. But the race to build increasingly autonomous automotive safety systems is well under way, as the cost of cameras and sensors drops and engineers get better at programming those tools to work together.
If you’re looking to gin up a project that can interface with the world--say, a device that tells the weather using sensors--you’re probably going to need a microcontroller, a simple computer system on a circuit board that consists of a processor, memory and an input/output system. They are the centerpiece of many of my past PopSci projects, such as a desk clock that keeps superaccurate time by pulling in a signal broadcast from an atomic clock.
If there were a distinction one could earn for practicing smart medicine on a shoestring, a UT grad student would be high in the running. Using a aluminum foil, gelatin, milk protein, and a cheap LED light--items that collectively sell for under a buck--he’s created a fast, one-hour test for acute pancreatitis.
A new type of sensor can identify substances as small as a molecule by examining the light they reflect, potentially leading to sensors for a wide range of substances, from explosives to cancer.
The DARPA-funded sensor uses a chip full of metal pillars to boost the light signals bouncing off an object. It’s a billion times more sensitive than was previously possible, according to researchers at Princeton University.
Under Armour's E39 shirt looks mostly like a typical Under Armour compression shirt, which is to say, entirely unflattering on those of us who aren't professional athletes. But the E39 is actually a very different beast from the usual apparel, packing a triaxial accelerometer, a heart-rate monitor, and a breathing monitor. The days of simply clocking an NFL prospect's 20-yard sprint time are over--now coaches can see second-to-second updates on the player's internals, and even track the acceleration and deceleration of a player's individual strides.
Tiny-fingered researchers at the University of Michigan have created this computer, the world's first complete millimeter-scale computing system. It is a prototype designed to be implanted in a human eye, to monitor internal pressure there for signs of glaucoma.
America's fleet of flying military robots possess a variety of mission-critical capabilities—their speed and range allow them to quickly cover a lot of ground, and their sensor arrays can pick out ground targets in daylight or darkness—but they can't do much to locate potential targets hiding indoors. But just try hiding from the Cougar20-H. The highly-sensitive ground-based 'bot can hear you breathing—through a wall.