We see a light bulb with thin shield of glass but if we observe it carefully we will see a filament inside it made up of tungsten. Now let us explore how it works. Electricity is passed through the filament which is very long and […]
Ralph H. Baer, a well renowned video game inventor, is considered as ‘The Father of video games’. During the year 1951, he came up with the idea of including a video game in television set but his idea was not acknowledged by his seniors. He […]
The gas mask is a device, when used protects the user from breathing in toxic gases and pollutants. The gas mask was invented by Garrett A. Morgan and patented in 1914, though there were others who had worked on these masks before this invention. Garrett’s […]
A box by which we see images and hear sounds is called television. Let us know about its invention and development. In 1862 Abbe Giovanna Caselli invented pantelgraph which sends the still images with wires. May and Smith the other scientists in 1873 started their […]
Edwin Ruud, a Norwegian mechanical engineer invented the electric water heater in 1889 that has now become an indispensible part of every household and certain commercial organizations and industries. He founded the Ruud Manufacturing Company where these devices were manufactured and sold. Ruud’s design had […]
Cochlear implants are used by people who are medically termed as deaf or are extremely hard of hearing. The implant itself has two plants. The first part of the implant is fixed behind the ear, while the second portion of the implant is surgically implanted […]
A car engine is usually an internal-combustion engine and there are various types of internal-combustion engines. The various types of internal-combustion engines that power the car are diesel engines and gasoline engines. All types of internal-combustion engine have their advantages and their disadvantages. The external […]
Speed varies from plane to plane but average speed of a plane is five hundred and eighty miles per hour. Jet airlines can fly at the speed of 600 mph. And some others can go at the 2000 mph. It depends from aircraft to aircraft. […]
A hairdryer or blow dryer is an electromechanical gadget that blows hot or cool air over damp or wet hair to aid in quick drying of wet hair. Alexandre Godefoy of France invented the electric hair dryer in 1890. Before the hairdryer was invented men […]
The solar cells can be used as the alternative source of electricity. As all know the fossil fuels and other sources of energy such as coal which we have been utilizing so far for making electricity is decreasing day by day. The solar power can […]
