Led Gyroscope Ball

Led Gyroscope Ball

Precision Gyroscope $11.99 We have many a fond childhood memory of field trips to the science museum. It was there that we got to put our hands all over Science. We saw eggs hatch into baby chickens, we used a lever to lift a Very Heavy Thing, we pushed a button and made a whirlpool, we stared up at the stars in the planetarium, and if our parents shelled out the extra cash, we got to see an IMAX movie about whales. The only down side was that we had limited funds for gift shop purchases. Nothing sucked more than wanting to BUY ALL THE THINGS but only having cash on hand for one of the things. If your childhood lacked a gyroscope, it's time to make up for that oversight. The Precision Gyroscope features tiny ball bearings and near perfect balance, allowing it to spin for several minutes. Perform gravity-defying stunts and tricks with the power of Science! You may be wondering, "ThinkGeek, what makes this gyroscope better than that other one you have?" Well, Esteemed Chucklehead, it's simple. The Precision Gyroscope is made from superior materials and crafted to more exacting standards. While you can start it with a string like a classic model, it also comes with an easy starter strap that takes just seconds to use. Go on, think of us as the museum gift shop and get yourself that slice of childhood you missed. Product Specifications Recommended ages: 8 - adult Perform gravity-defying ticks with the power of Science Sturdy metal and plastic construction Two options for starting: Classic pull-string: Thread the cord through the hole in the axle. Wind the cord around the axle while turning it with your thumb and index finger. With a firm grip, pull the cord away from the gyroscope in a motion parallel to the floor. Quick and easy starter strap: Hold the frame and push the starter strap through the frame and wheel. Making sure the strap aligns with the gear of the axle, pull the strap away from the gyroscope. Plastic frame comes in assorted colors (our warehouse robot monkeys will choose one at random)

The Gyroscope $59.99 The Gyroscope - Wall Decal

8 Ball with LED $1.95 8 Ball with LED

High Grade Precision Gyroscope Spins For Several Minutes $14.82 Tiny ball bearings and near perfect balance keep the precision gyroscope spinning for several minutes. The most precision designed toy gyroscope on the market. Related Science Kits, Sets, And Toys: Science Toys Earth Science Kits Physics Kits Educational Toys Related Science Kits, Sets, And Toys: Science Toys Earth Science Kits Physics Kits Educational Toys

Cool 2-in-1 Balanced Gyroscope Yo-Yo(Orange) $4.43 - This is a fashionable and interesting toy for children - This is 2-in-1gyroscope yoyo ball - Bright colored ultra-durable plastic cups with dual bearings - It offers benefits such as improving coordination, flexibility, and strength - This 2-in-1 gyroscope yoyo ball allows both beginners and advanced players to achieve tricks once thought impossible - Perfect balance, excellent response, and smooth spin make it a great choice for players even today - This 2-in-1gyroscope yoyo ball is great for looping tricks or all-around play

American DJ LED Color Ball $49.99 American DJ LED Color Ball

American Dj Led Color Ball $49.99 American DJ LED Color Ball

Le Gyroscope $89.99 Faroy Le Gyroscope - Giclee Print

Original TEDCO Gyroscope $6.49 Original TEDCO Gyroscope

Gyroscope $21.94 No Synopsis Available

K9 MeteorLight LED Ball $9.99 When the constellation Orion wants to play with his dogs (Canis Major and Canis Minor), he plucks a star from the heavens and tosses it to them. They leap through space, chasing after the effulgent ball. The star-ball twinkles and sparkles and is perfectly star-dog proof. While we don't recommend playing with a burning star with your pooches, we've found the next best thing: the K9 MeteorLight LED Ball! The K9 MeteorLight LED Ball is made of extra durable rubber, so it's ready for anything your dog can throw at it. Like Canis Major's ball, the MeteorLight will cycle through the whole color spectrum (there are LEDs inside, you see). And what if your aim sucks and you toss it in a lake? Don't worry - the K9 MeteorLight LED Ball will float until your dog (or you) swims out and retrieves it. Perfect for play anytime! The K9 MeteorLight LED Ball - a bit of starlight for your dog to play with.

Super Bright Solar LED Plastic Light Ball $39 Super Bright Solar LED Plastic Light Ball

Free Standing Magic LED Gyroscope @ DX

Gyroscopic exercise tool

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Powerball Neon Green Pro - working
A gyroscopic exercise tool is a device used to exercise the wrist as part of physical therapy or in order to build hand and finger strength. It can also be used as a clever demonstration of some aspects of rotational dynamics. The device consists of a tennis ball-sized plastic or metal shell around a free-spinning mass, which can be started with a short rip string or by a snap of the thumb. Once the gyroscope inside is going fast enough, a person holding the device can accelerate the spinning mass to high revolution rates by moving the wrist in a circular motion.
How it works

A DynaBee gyroscopic wrist exerciser.
The device essentially consists of a spinning mass inside an outer shell. The shell almost completely covers the mass inside, with only a small round opening allowing the gyroscope to be manually started. The spinning mass is fixed to a thin metal axle, each end of which is trapped in a circular, equatorial groove in the outer shell. A lightweight ring with two notches in it for the ends of the axle rests in the groove. This ring can slip in the groove; it holds the spinning gyroscope centered in the shell, preventing the two from coming into contact (which would slow the gyro down), but still allowing the orientation of the axle to change. Once the gyroscope is spinning, tipping the device causes the gyroscope to precess, with its axle slipping around in the groove in a circular fashion. The groove inside the device is a little wider than the axle; an externally applied torque causes one end of the axle to push against the upper rim of the groove, while the other end pushes against the lower rim of the groove. These two effects combine to make the device work: as the gyroscope precesses in response to an external torque, one end of the axle "rolls" along the top edge of the groove while the other end "rolls" along the bottom edge, speeding up the rotation of the spinning mass.
The acceleration of the gyroscope is best when the precession of the gyroscope is followed by wrist motion, so that an accelerating torque is continually applied. The wrist can be rotated either direction (clockwise or counterclockwise)--the result is always to increase the rotation speed. It takes a while before one finds the "rolling" point, but the gyro will also be accelerated to a smaller extent by the slipping friction which occurs if the wrist is rotated too quickly. Since frictional force is essential for the device's operation, the groove must not be lubricated.
Models and manufacturers
Names under which gyroscopic exercise tools are sold include DynaBee and Powerball. DynaBee has been a brand name since the 1970s for gyroscopic wrist exercisers.
Powerball is a trademarked name for gyroscopic exercise devices produced by Nanosecond (NSD). Later patents for the Powerball device cover its extra features such as revolution counters and gyro-powered LED lights. The light-emitting diodes are powered by a small generator embedded in the gyroscope. Even the regular NSD Powerball includes the magnet needed to make the revolution counters work.
Other Powerball models on the market today are the "Powerball 350Hz Metal" and "NSD SuperPowerBall" (these powerballs are made primarily of metal and have twice the weight of "regular" Powerball models and are more challenging to operate since up to 250Nm of torque is produced); the "Powerball Signature" (featuring a more stable rotor)[citation needed] ; and the "Powerball Screamer" (based on the Powerball 250Hz model, but with 8 holes drilled in the rotor to generate a very loud sound).
Nanosecond's Powerball was the first to feature electronic revolution counters and a generator for light-emitting diodes.
Records
Some devices include electronic revolution counters, which allow performance data to be gathered during use.
The current records for 250Hz NSD Powerballs are: 16,732rpm peak, 21,228 revolutions in 90 seconds in Strength mode, and a combined 31,816rpm in the Dual category (one Powerball in each hand).
The peak speed record for the (denser) 350Hz "Metal" Powerball is 14,091rpm.
All of the above records are currently held by Akis Kritsinelis from Greece. For other results, see the official NSD Scoreboard
Patents
The device is covered by US patents 3,726,146 (1973) and 5,353,655 (1994) by L.A. Mishler and US patent 5,800,311 (1998) by P.S.Chuang and 6,942,601 (2001) by P.S. Chuang.
References
^ Article on the dynamics of the device
^ SourceForge revolution counter project
External links
Wikimedia Commons has media related to: Powerball
Powerball International website, Shop
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