Swimmer's ear is an infection and irritation of the outer ear and ear canal causing redness, pain, and more. Thyroid cancer is cancer of the thyroid gland and can cause a cough, hoarseness, a lump in the neck, and more.
Around 1710 NewCommon invented Atmospheric Engine using steam for powering Water Pump to take out water from Coal Mines of England.
Invented by : Otto Von Guericke. Invented in year : 1650. Air Pump is a device that removes gas molecules from a sealed volume or a chamber in order to leave behind a partial vacuum. By removing gas from a chamber, a vacuum pump reduces the pressure inside the chamber.