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Tongue depressor. A tongue depressor or spatula is a tool used in medical practice to depress the tongue to allow for examination of the mouth and throat. Hobbyists, artists, teachers and confectionery makers use tongue depressors, which may also be referred to as craft sticks or popsicle sticks.
An ice pop stick bomb, ready to throw. Stick bombs can be constructed out of most flat sticks of the appropriate dimensions. The usual material for construction is wood, but plastic can also be used. Ice pop sticks (craft sticks) and tongue depressors are popular because of availability, low cost, and because they are easily coloured. Tongue ...
A slingshot or catapult is a small hand-powered projectile weapon. The classic form consists of a Y-shaped frame, with two tubes or strips made from either a natural rubber or synthetic elastic material. These are attached to the upper two ends. The other ends of the strips lead back to a pouch that holds the projectile. One hand holds the ...
The EMALS uses a linear induction motor (LIM), which uses alternating current (AC) to generate magnetic fields that propel a carriage along a track to launch the aircraft. [5] [6] The EMALS consists of four main elements: [7] The linear induction motor consists of a row of stator coils with the same function as the circular stator coils in a conventional induction motor.
The Onager was a Roman torsion powered siege engine. It is commonly depicted as a catapult with a bowl, bucket, or sling at the end of its throwing arm. Trebuchet: 4th Century BC China: Similar to the catapult, but uses a swinging arm to launch projectiles. It is usually considered to be stronger than the catapult. [4] Oxybeles: 375 BC Greece
Basic diagram of an onager, a type of catapult. A catapult is a ballistic device used to launch a projectile a great distance without the aid of gunpowder or other propellants – particularly various types of ancient and medieval siege engines. [1] A catapult uses the sudden release of stored potential energy to propel its payload.
Other utensils that perform a similar function of combining a spoon and knife include the grapefruit spoon, which appears as a spoon with the tip of the spoon possessing a serrated edge. It is used to eat citrus fruits by using the serrated part to cut through the rind and then using the spoon part to scoop and take the pulp and eat it.
A mass driver or electromagnetic catapult is a proposed method of non-rocket spacelaunch which would use a linear motor to accelerate and catapult payloads up to high speeds. Existing and proposed mass drivers use coils of wire energized by electricity to make electromagnets , though a rotary mass driver has also been proposed. [ 1 ]
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