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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.
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.
Stevie conducts an experiment to determine if different foods float or sink in fizzy water. Lauren pretends to be a sultana in a glass of fizzy water. Fely becomes a chef and serves a strawberry dish with whipped cream. Lauren moves her arms like egg beaters. Tim pretends to be a nature scientist exploring in search of a musical hummingbird.
According to the book Sesame Street: A Celebration - 40 Years of Life on the Street the segment was discontinued after 2003 because, "kids didn't know the new Muppets and became confused, and the frenetic pace of the segment raised concerns. The puppets Mooba, Mel, Narf, and Groogel literally bounced off the walls.
YouTube Kids has faced criticism from advocacy groups, particularly the Fairplay Organization, for concerns surrounding the app's use of commercial advertising, as well as algorithmic suggestions of videos that may be inappropriate for the app's target audience, as the app has been associated with a controversy surrounding disturbing or violent ...
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 ...
As demonstrated in an experiment, when the jar is placed 30 metres (98 ft) above the ground and the chain is sufficiently long, the arc of the chain fountain can reach a height of about 2.1 m (6 ft 11 in) above the jar. [non-primary source needed] [5]