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In the "Sink or Float" YouTube game, Cookie Monster and his friend Emma ask for your help in testing whether five different objects will either sink or float in a tank of water.
A Cartesian diver or Cartesian devil is a classic science experiment which demonstrates the principle of buoyancy (Archimedes' principle) and the ideal gas law.The first written description of this device is provided by Raffaello Magiotti, in his book Renitenza certissima dell'acqua alla compressione (Very firm resistance of water to compression) published in 1648.
This is the case if the object is restrained or if the object sinks to the solid floor. An object which tends to float requires a tension restraint force T in order to remain fully submerged. An object which tends to sink will eventually have a normal force of constraint N exerted upon it by the solid floor. The constraint force can be tension ...
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In Drownproofing terminology, the great majority of people are "floaters". That is to say that, with the lungs fully inflated (or say at total lung capacity), they have slightly less specific gravity than water and will not start to sink until they exhale. [8] An average floater has 3–4 lb (1.4–1.8 kg) of positive buoyancy in fresh water.
The experiment aimed to illustrate periodic trends in the alkali metal series. It showed the violent reactions of metallic sodium and potassium with water, in which the hydrogen produced subsequent explosions, and intended to demonstrate the even greater reactivity of rubidium and caesium by dropping them into a water-filled bathtub.
The show was created and the character originally played by Stevin John, [3] who posted the first episode of the show on YouTube on February 18, 2014, which featured tractors. [4] [5] [6] Aiming to keep Blippi going, John joined the multi-channel network Moonbug Entertainment in 2020, [7] which became a subsidiary of Candle Media on November 1 ...
Use of the float tank has roots in alternative medicine, [8] where its use and promotion occurred largely outside of a scientific framework. Early scientific research on the use of float tanks was stalled by "political activists [who] viewed sensory deprivation as analogous to solitary confinement and torture", thus leading to "hostile ...