Search results
Results from the WOW.Com Content Network
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 ...
For a sample motorcycle moving at 22 m/s (50 mph) that has a front wheel with a moment of inertia of 0.6 kg·m 2, turning the front wheel one degree in half a second generates a roll moment of 3.5 N·m. In comparison, the lateral force on the front tire as it tracks out from under the motorcycle reaches a maximum of 50 N.
The work was presented during the solo exhibition Black Mirror at Galleria Borghese in Rome. It is made of steel, aluminium, plaster, resin, lit by LED lights and powered by an electric motor. Of his work, Collishaw says: "The zoetrope literally repeats characters to create an overwhelming orgy of violence that is simultaneously appalling and ...
Propeller walk (also known as propeller effect, wheeling effect, paddle wheel effect, asymmetric thrust, asymmetric blade effect, transverse thrust, prop walk) is the term for a propeller's tendency to rotate about a vertical axis (also known as yaw motion). The rotation is in addition to the forward or backward acceleration.
The ride operator activated an emergency stop, but it didn’t work, park officials told a news outlet. Riders get stuck spinning backward when amusement park ride malfunctions, videos show Skip ...
A G-Turn is a Nose Manual, but without facing the riding direction. The rider increases speed, then places the front foot on the nose while keeping the back foot over the back wheels. While riding, the board tends to turn frontside or backside, ending with a spin. Variations: One-Wheeled, Backward, Hang Ten (two feet on the nose)
British clocks will revert to Greenwich Mean Time when they go back an hour this week.
Burnout in the box at Tarlton International Raceway, South Africa Fire burnout, Santa Pod Raceway, UK. The origins of burnouts can be traced to drag racing, where they have a practical purpose: drag racing slicks perform better at higher temperatures, and a burnout is the quickest way to raise tire temperature immediately prior to a race.