Astronomical telescope Who was the first scientist who made the astronomical telescope? ” Galileo ” was the first scientist who made an astronomical telescope in 1609. It was made from lenses to collect the...
The fluorescent lamps There are different types of electric lamps, but the most popular of these lamps are fluorescent lamps and light bulbs, The fluorescent lamps are a type of lighting lamp known as...
The electric lamps Electric lamps are tools that convert electric energy into light energy by passing electricity through them, There are different types of electric lamps, but the most popular of these lamps are...
The volcanoes There are thousands of volcanoes on the Earth’s surface. But sixty-one only of them are active as evidence of the permanent activities and movement beneath the Earth’s crust. The volcano is an...
