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The history of fluid mechanics is a fundamental strand of the history of physics and engineering. The study of the movement of fluids (liquids and gases) and the forces that act upon them dates back to pre-history. The field has undergone a continuous evolution, driven by human dependence on water, meteorological conditions and internal ...
In a spray bottle, the dispensing is powered by the user's efforts, as opposed to the spray can, in which the user simply actuates a valve and product is dispensed under pressure. Several designs have been developed. [ 1][ 2][ 3] Some of the pumping mechanisms of spray bottles are similar to those of pump dispensers which are used for more ...
Sterno. Sterno is a brand of jellied, denatured alcohol sold in and meant to be burned directly in its can. Popular both in commercial food service and home entertainment, its primary uses are as a fuel for heating chafing dishes in buffets and serving fondue. Other uses are for portable stoves and as an emergency heat source.
A jerrycan or jerrican (also styled jerry can or jerri can) [ 1] is a fuel container made from pressed steel (and more recently, high density polyethylene ). It was designed in Germany in the 1930s for military use to hold 20 litres (4.4 imp gal; 5.3 US gal) of fuel, and saw widespread use by both Germany and the Allies during the Second World ...
WD-40 stands for Water Displacement, 40th formula. It is a successful product to this day, with steady growth in net income from $27 million in 2008 to $70.2 million in 2021. [4] In 2014, it was inducted into the International Air & Space Hall of Fame at the San Diego Air & Space Museum. [5]
After compressed air cools, then the vaporized water turns to liquefied water. [14] [15] Cooling the air as it leaves the compressor will take most of the moisture out before it gets into the piping. Aftercooler, storage tanks, etc. can help the compressed air cool to 104 °F; two-thirds of the water then turns to liquid. [16]
Easy Cheese is an oil-in-water emulsion. Oil droplets typically have a diameter of no more than one micrometer. Emulsions with large droplets like this tend to have a low-medium viscosity in comparison to smaller droplets whose emulsions have a higher viscosity. [6]
Mist and fog are aerosols. An aerosol is a suspension of fine solid particles or liquid droplets in air or another gas. [ 1] Aerosols can be generated from natural or human causes. The term aerosol commonly refers to the mixture of particulates in air, and not to the particulate matter alone. [ 2] Examples of natural aerosols are fog, mist or dust.