How to keep aircraft cabin air in good quality?

Consistently there are more than one billion individuals traveling by airplanes throughout the world and this number is expected to be doubled in the next 20 years Aircrafts operate in a physical environment that is not survivable by unprotected...

The comparison of the compressive strength of concrete made with crushed stone

Concrete is the most widely used composite material today. Concrete has been in use as a major building material ever since its inception world over, last three four decades have seen construction of innumerable reinforced concrete structures with...

The description of the early distillation equipment

Early distillation equipment was very simple in designA pot of undrinkable water would be over heated over an open blaze until it boiled, founding steam. The steam would then condense and a cool superficialadjourned above the pot. The condensed...

The best material for thermos

According web "Media Belajar", Flasks made of a mixture of aluminium, glass, plastic, and cork. The inside of the flask is made of aluminium-coated glass. This material is a good conductor. The outside of the flask is made of plastic and cork. The...

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