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When the yo-yo is first released, the gravity (and the throw) give it translational kinetic energy and necessarily, since the string must unwind, much of this energy is converted into rotational kinetic energy establishing the free movement of the yo-yo, and causing it to spin rapidly. As the yo-yo unwinds downward, it also converts potential ...
Yo-yo de-spin was invented, built, and tested at Caltech's Jet Propulsion Laboratory. [6] Yo-yo hardware can contribute to the space debris problem on orbital missions, but this is not a problem when used on the upper stages of earth escape missions such as Dawn, as the cables and weights are also on an escape trajectory.
The Delta II launch vehicle third stage employed a Star 48 motor and was spin-stabilized and depended on the second stage for proper orientation prior to stage separation, but was sometimes equipped with a nutation control system to maintain proper spin axis. [10] It also included a yo-weight system to induce tumbling in the third stage after ...
The yo-yo is an example of a skill toy. A skill toy is an object or theatrical prop used for dexterity play or an object manipulation performance. A skill toy can be any static or inanimate object with which a person dances, manipulates, spins, tosses, or simply plays.
Propulsion system thrusters are fired only occasionally to make desired changes in spin rate, or in the spin-stabilized attitude. If desired, the spinning may be stopped through the use of thrusters or by yo-yo de-spin. The Pioneer 10 and Pioneer 11 probes in the outer Solar System are examples of spin-stabilized spacecraft. [2]
People who yo-yo diet tend to have an increased risk of death and developing chronic diseases like stroke, heart disease, and diabetes, per a 2018 study in Preventive Medicine. This is because yo ...
The most basic act of diabolo manipulation is to spin it on the string. "The string is placed between the circles, but in order for the diabolo to balance, it must maintain a spinning motion, much like a yo-yo." [20] However, "considerably more skill is needed to twirl a diabolo...than the Yo-yo it resembles."
About 40% of American adults are living with obesity — and for many, it can feel a bit like a roller-coaster as their weight fluctuates. Experts explain the science behind "yo-yo dieting."
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