Health Trackers May Be the Rage, But How Useful Are They?
Low battery life, bulky appearance and lack of integration are some of the obstacles in the way before health trackers become the next gadgets we can’t live without.
Learn more about the ongoing evolution of this industry — and meet a woman who wears 27 fitness trackers — at KQED Science.
Bike to the Future
There’s a new vehicle hitting the road that’s trying to bridge the gap between bicycles and cars.
We’ve seen electric assist bicycles before. But never one like this. The ELF is a recumbent tricycle, with a solar panel on top, and a trunk in the rear. It’s a single occupancy vehicle that marries the environmental benefits of a bike with the personal convenience of a car. Inventor Rob Cotter hopes his 150-pound invention entices people to reduce their dependence on single-occupancy vehicles. But at $5,000 an ELF, is that dream a possibility?
“Android Wear” is Google’s wearables platform; hardware and SDK announced
“Google has taken the wraps off its fabled Google Watch platform today, announcing “Android Wear,” its new platform for wearable devices. While the system is Android-based, it also occupies the same position that Android does in the market—an OEM agnostic platform with a focus on app development, Google integration, and compatibility with many different types of hardware.”
“Controlling the spread of sound and how it bounces off objects is not easy. But by using a few perforated sheets of plastic and a complex algorithm, researchers at Duke University have developed the world’s first 3D acoustic cloaking device.
The device escapes acoustic detection by rerouting sound waves in such a way that both the cloak and anything beneath it appear invisible. In future, a scaled-up version of the cloak could be affixed to ships, submarines, or aircraft to help these large objects avoid sonar detection.”