3. November 2023.
Not far from San Francisco, in the quiet town of Livermore, California, lies an incredible example of endurance and engineering genius, a light bulb that has been burning continuously since 1901. age.
This article reveals the story of a light bulb that has become known around the world for its incredible longevity.
20. September 2023.
Table lamps almost always consist of a stand, a thin frame and a blind that closes the bulb. However, the design of the product itself over the last 50 years varies greatly from decade to decade and fashion trends.
19. September 2023.
The Croatian Encyclopedia states that the lumen of the unit of measurement (sign lm) of luminous flux, derived unit of the International System of Units. It is determined by the luminous flux emitted into the corner of one steradian by a point light source, to which the luminous intensity in all directions of space is one candela, i.e. lm = cd sr.
