Liquid hydrogen
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Liquid hydrogen (H2(l)) is the liquid state of the element hydrogen. Hydrogen is found naturally in the molecular H2 form.
Liquid hydrogen
The global headquarters of Air Products in Trexlertown, Pennsylvania, a leading global supplier of liquid hydrogen
Liquid hydrogen bubbles forming in two glass flasks at the Bevatron laboratory in 1955
A large hydrogen tank in a vacuum chamber at the Glenn Research Center in Brook Park, Ohio, in 1967
Liquid
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A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a nearly constant volume independent of pressure. It is one of the four fundamental states of matter, and is the only state with a definite volume but no fixed shape.
The formation of a spherical droplet of liquid water minimizes the surface area, which is the natural result of surface tension in liquids.
A lava lamp contains two immiscible liquids (a molten wax and a watery solution) which add movement due to convection. In addition to the top surface, surfaces also form between the liquids, requiring a tension breaker to recombine the wax droplets at the bottom.
Cavitation in water from a boat propeller
Surface waves in water