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One documented example of someone successfully riding a rear-wheel steering bicycle is that of L. H. Laiterman at Massachusetts Institute of Technology, on a specially designed recumbent bike. [28] The difficulty is that turning left, accomplished by turning the rear wheel to the right, initially moves the center of mass to the right, and vice ...
The wagon-wheel effect (alternatively called stagecoach-wheel effect) is an optical illusion in which a spoked wheel appears to rotate differently from its true rotation. The wheel can appear to rotate more slowly than the true rotation, it can appear stationary, or it can appear to rotate in the opposite direction from the true rotation ...
In a normal turn, rear wheels follow the front ones because resistance to motion in the forward direction (in which the wheels turn) is significantly less than in the sideways direction. The latter provides the centripetal force that makes the rear end of the car follow the turn. When the driver locks the rear wheels with the handbrake, both ...
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Drivers of cars with a handbrake connected to the rear wheels can enter a controlled turning skid by employing the handbrake, locking the wheels, and turning the steering wheel sharply in either direction. This maneuver can also be called a bootleg turn, but is more precisely described as a handbrake turn. Using the handbrake to break the ...
Bomb-making materials linked to the New Year's Day attack in New Orleans were recovered by FBI agents and local law enforcement Thursday at the suspect's residence in Houston, Texas, sources ...
Studies back that up — and show exactly why this happens. Our brains are, quite literally, not designed to do two things simultaneously. When we attempt to do so anyway, it requires more neural ...
Metals expert Aurelia Azema displays traces on the metal pipes of the Notre Dame cathedral organ to measure a kind of lead "fingerprint" at Champs-sur-Marne, west of Paris ahead of restoration.