Persians were also recognised as innovators in the fields of refrigeration, cooling, and ventilation.
The first crafting methods for prehistoric refrigerators date back to around 400 BC, making Persian expertise in cooling and refrigeration technology even older. These structures, known as Yakhchals, typically included sizable, well-insulated underground storage areas, sometimes exceeding volumes of 1,800,000 cubic feet. Additionally, the subterranean spaces had Qanat, or wind catchers, for generating natural ventilation that helped with temperature drops to even freezing points. With the aid of a mortar made of sand, lime, egg white, goat hair, and ash, these underground chambers were literally topped off by stepped dome-like structures made of heat-resistant mud bricks that frequently reached heights of over 60 feet.
Related Facts
How much melanin, or pigment, is present in the eye affects the color of the eye
Allergens can also cause asthama.
A manned spacecraft first travelled through the asteroid belt in 1972.
Scientists can turn the remains of a loved one into a diamond.
Some individuals like watching other people's rage.
Earthworm's average age is more than 5 years.
Plath received electroshock therapy for her clinical depression.
1.5 million people attended the FIFA Qatar
Can You Give Your Cat Too Much Catnip?
Did you Know? There are three jokers in DC
Microfiber cleans smooth surfaces of 99 percent of germs.
Microfiber is ideal for environmentally friendly cleaning.
Did you Know? Leonardo DiCaprio did not do the drawing in Titanic.
Not all inuit igloos are snow homes.
Did you Know? Desert comprises two thirds of Egypt's land surface
A Key To Managing ADHD Is To Seek Out Places Where You Thrive
Did you Know? The tray scene from spider-man scene took 156 takes.
Did you Know? Stephen King is the living author with the most films adaptations.
Scholars Aren’t Completely Sure What The Incas Used Machu Picchu For
The word yoghurt can be spelled in a variety of ways.
Poutine was invented in Quebec.
You Can Have a Headache Without a Migraine
The Female Funnel-Web is one of the world’s most deadly spiders!
petra was destroyed during an ancient massive earthquake
The Great Sphinx of Giza is technically not a sphinx.