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The pen spinning community is present mostly on the Internet through forums, video hosting platforms, and chat services such as Discord. Forums are often centered in specific countries, such as Japan, France, Germany, India and China. Forums may also be international, as is the case with the Universal Pen Spinning Board and Reddit-based ...
In 2013, the NIH published a study on whether or not oscillating-rotating brushes or sonic (vibrating) brushes worked better for users, specifically which version works better to eliminate plaque ...
An electric toothbrush, motorized toothbrush, or battery-powered toothbrush is a toothbrush that makes rapid automatic bristle motions, either back-and-forth oscillation or rotation-oscillation (where the brush head alternates clockwise and counterclockwise rotation), in order to clean teeth. Motions at sonic speeds or below are made by a motor.
The brush head vibrates at hundreds of times per second, with the latest models at 31,000 strokes per minute (517 Hz) or 62,000 movements per minute [1] (1033 Hz). Rather than connecting to its charger with conductors, it uses inductive charging —the charger includes the primary winding of the voltage-reducing transformer and the handle of ...
Electric toothbrushes have been used by the public since the early 1950s. Today, they have evolved and based on the speed of their vibration, can be divided into three categories: electric, sonic and ultrasonic. Electric toothbrushes vibrate in either an up/down direction, or in a circular motion, and sometimes in a combination of the two.
[7] [8] The system was designed appear similar to a laptop, a stylus called the "Magic Pen", and a pad to draw on. [9] As Sonic had become Sega's mascot, Sega released two educational games featuring characters from the Sonic franchise, Sonic the Hedgehog's Gameworld and Tails and the Music Maker.
The sonic screwdriver is a fictional multifunctional tool [1] in the British science fiction television programme Doctor Who and its spin-offs, used by the Doctor.Like the TARDIS, it has become one of the icons of the programme, and spin-off media such as The Sarah Jane Adventures and Torchwood have replicated its functions in devices such as the sonic lipstick, sonic blaster, sonic probe ...
Spinball Whizzer is a spinning roller coaster located in the Adventure Land area of Alton Towers in Staffordshire, England.Built by Maurer Söhne, it was previously sponsored by Sega, the company that created the Sonic the Hedgehog video game franchise, and was known as Sonic Spinball from 2010 to 2015.