Internetowy sklep elektryczny, osprzęt i artykuły elektryczne, hurtownia elektryczna – Sklep elektryczny Electric24.pl
Sklep internetowy hydrauliczny i instalacyjny, hurtownia online - artykuły i akcesoria hydrauliczne | Hydrauliko
Description: Luminaires, different light fittings: downlight, high-bay, hermetic, pendant, fluorescent, light sources, LED lighting, emergency lighting. Offer for companies!
led (5572) lighting (5182) emergency (1998) fixtures (567) luminaires (235) fluorescent (115) downlight (83) lug (57) kanlux (18) fittings light sources (1)
The first light sources created by humans were produced thousands of years ago in the Neolithic period by burning tree branches and dried grass to provide light in the nighttime darkness. People learned to fashion oil lamps by placing animal and vegetable oils in containers made of stone, clay and shell and then dipping wicks into the oil.
Finally, the discovery of electrical energy brought the introduction of electric lamps and bulbs and the age of electrical lighting supplanted the age of combustion lighting. The first electric light was created by Englishman Humphry Davey in 1802. Davey experimented with electricity and invented an electric battery.
Famous inventor Thomas Edison is often credited with creating the solution in 1879: the carbon filament light bulb. He used thin – and thus high-resistance – filaments to achieve the brightness, and delayed burnout by making them from high-melting-point metal sealed in a vacuum. Edison produced a bulb that could glow for over 1500 hours.
Internetowy sklep elektryczny, osprzęt i artykuły elektryczne, hurtownia elektryczna – Sklep elektryczny Electric24.pl
Sklep internetowy hydrauliczny i instalacyjny, hurtownia online - artykuły i akcesoria hydrauliczne | Hydrauliko