Stealth aircraft like the F35 fighter generally rely on high-tech absorption materials and unusual geometries to scatter, deflect, and sponge up incoming radar signals. These techniques are exceptionally good at masking a vehicle's shape and size, particularly when swept with side-scanning radar. However, with lower-frequency, directed anti-stealth radar-targeting systems being developed, these surfaces prove much less able to hide an object. To help address this, a team of Chinese scientists has developed a thin electronic material that sheaths an object and effectively absorbs radar signals over a wide range of frequencies.
Even if motorized bicycles turn you off, perhaps you still appreciate
some of the electronic bells and whistles that are included on many
e-bikes. If that's the case, then a "smart bike"
might be more to your liking. One of the latest to catch our eye is the
Cotlo Corvus, which features a car-detecting rear radar system and a
built-in OLED display. We came across a prototype at Interbike 2015, and
got the goods.
Garmin gave hope to many a floundering tech startup's CEO earlier this year when it purchased Ikubu Ltd in the wake of a crowdfunding campaign that came up short. Though the company failed to capture the imagination of the Dragon Innovation crowdfunding community, Garmin liked the cut of Ikubu's jib, so it snapped the company up with a view to bringing its rear-facing bike radar system to market. Now, the electronics giant has unveiled the finished, more polished product dubbed Varia Radar, which also integrates with Garmin's Edge cycle computer.