self-stabilizing
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Scientists unlock the secrets of bike stability, make riders optional
We've peered back in time to the early days of the universe, just following the Big Bang, and unraveled the mysteries of the human genome -- yet we don't really know how a moving bicycle manages to stay upright without a meatbag manning the handlebars. Scientists have long thought that it had something to do with the gyroscopic effect created by the spinning wheels and the caster effect of having the front wheel trail the steering axis (don't worry, it's all explained in a video at the source link). Researchers at Cornell, however, have created a tiny bike that generates neither of those effects yet, thanks to carefully calibrated mass distribution, still stays vertical when moving over 5MPH. The insights learned here could lead to self-stabilizing rides for us and cooler wheels for our pedal-happy automatons to inherit. PR after the break.
Self-stabilizing bike stabilizes bikers who can't stabilize themselves
The bicycle -- whether electric, rocket-powered or simply sporting Bluetooth -- is certainly looking a lot better these days, and now researchers at Yokohama's Keio University have devised a way to keep the vehicle upright without the help of a human operator. The otherwise typical bicycle sits on a set of rollers and is equipped with two motors: one moves the rear wheel an average of 2.5 meters (8.2 feet) per second while the other controls the handlebars. A linux controller keeps an eye things via webcam and gyro sensor, steering the vehicle and adjusting its speed as necessary. Currently the bike is only able to stay upright when moving in a straight line, but soon enough we should see a system that can take corners and work in real world situations. Because why should people with an adequate sense of balance have all the fun?
GyroBike flywheel helps bicycles self-steady
Besides learning to use the toilet properly, the ability to ride a bicycle is one of the most important early-childhood accomplishments, but unfortunately, the current use of training wheels for practice does little to prepare kids for life on two wheels. Well a start-up using technology developed at Dartmouth College is aiming to eliminate the rolling crutches that are training wheels, and replace them with a gyroscopic flywheel that attaches to the front wheel and helps a bike steady itself whenever the rider loses his/her balance. Expected to retail for around $40 when it hits the market, the GyroBike by the company of the same name works by spinning in conjunction with the wheel it's attached to, using natural physical properties to turn the handlebars towards the direction of an impending fall. GyroBike also claims to be in talks with the top six manufacturers of kids' bikes, so you may soon be able to buy a model with this technology built-in instead of retrofitting one you already own.[Via Cnet]
