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On the other hand, in the bullet's proper frame it is the moving fluid that becomes denser and hence the bullet would float. But the bullet cannot sink in one frame and float in another, so there is a paradox situation. The paradox was first formulated by James M. Supplee (1989), [1] where a non-rigorous explanation was presented.
They are derived from concrete, lime or mortar, and mimic the shapes and forms of speleothems created in caves. [ 9 ] [ 8 ] The micro rafts which form on the surface of hyperalkaline leachate solution drips are typically about 0.5 mm in size when visible to the naked eye, and appear on the drip's surface after it has been suspended for greater ...
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.
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.
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Letterman and Shaffer debate the buoyant properties of the item before they each decide on whether it will sink or float (a frequent deciding factor is the nature of the item's container). Two models then drop the item into the tank while the Late Show "Hula Hoop Girl" (Anna Jack) and "Grinder Girl" (Kiva Kahl) perform on either side of the tank.
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The text mentions a kind of decorative paper called liúshā jiān (流沙箋) meaning 'drifting-sand' or 'flowing-sand notepaper' that was made in what is now the region of Sichuan (Su 4: 7a–8a). This paper was made by dragging a piece of paper through a fermented flour paste mixed with various colors, creating a free and irregular design.