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A piece of straw can penetrate all the way through a palm tree if propelled by hurricane-force winds. Busted: Propelling a piece of straw at a palm tree at a distance of 50 cm (20 in) at 320 mph (510 km/h) (the world record for recorded wind speed at ground level), the straw managed to penetrate the tree only a quarter of an inch.
[7] [8] Their design of a refillable spray can, dubbed the aerosol bomb or bug bomb, is the ancestor of many commercial spray products. It was a hand-sized steel can charged with a liquefied gas under 75 pounds of pressure and a product to be expelled as a mist or a foam. [9]
A bottle is a rigid container with a neck that is narrower than the body, and a "mouth". Bottles are often made of glass, clay, plastic, aluminum or other impervious materials, and are typically used to store liquids. The bottle has developed over millennia of use, with some of the earliest examples appearing in China, Phoenicia, Rome and Crete.
In the late 1960s, spray bottles with trigger-style actuators appeared and quickly became popular, as this design was less fatiguing to use. The original pump-style bottle remained more popular for applications like non- aerosol deodorants , where size was a factor and repeated pumps were not required.
Water use in factories varies widely; it can be as little as one tonne water used per melted tonne of glass. Of the one tonne, roughly half is evaporated to provide cooling, the rest forms a wastewater stream. Most factories use water containing an emulsified oil to cool and lubricate the gob cutting shear blades. This oil-laden water mixes ...
Spray nozzles can have one or more outlets; a multiple outlet nozzle is known as a compound nozzle. Multiple outlets on nozzles are present on spray balls, which have been used in the brewing industry for many years for cleaning casks and kegs. [2] Spray nozzles range from those for heavy duty industrial uses to light duty spray cans or spray ...
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They set up six mirrors to bounce light back and forth down the length of the shop, using a spotlight as the source. Polished metal mirrors gave 1.13 lux, but caused the beam to spread out after only a few reflections. When modern glass mirrors were used instead, the light level registered at 0.49 lux and the beam stayed focused longer.
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