hõõglampide

Hõõglampide is the Estonian word for incandescent light bulbs. These are a type of electric light that produces light by heating a filament until it glows. The filament is usually made of tungsten, a metal with a very high melting point. The filament is enclosed in a glass bulb filled with an inert gas, such as argon or nitrogen, to prevent the filament from oxidizing and burning out.

The principle behind the incandescent light bulb was first demonstrated by Humphry Davy in 1802, but it was Thomas Edison and Joseph Swan who independently developed commercially viable incandescent lamps in the late 1870s. Edison's design, patented in 1880, featured a carbonized filament that lasted for hundreds of hours.

Incandescent bulbs are characterized by their warm, yellowish light. They are relatively inexpensive to produce and offer good color rendering, meaning that colors appear natural under their light. However, they are also highly inefficient, with most of the energy consumed being converted into heat rather than light. This inefficiency has led to their gradual phase-out in many countries in favor of more energy-efficient lighting technologies like LED and fluorescent lamps. Despite their declining popularity, incandescent bulbs are still used in some applications where their specific characteristics are desired, such as for decorative purposes or in certain scientific instruments.