In 1835, the first constant electric light was demonstrated, and for the next 40 years, scientists around the world worked on the incandescent lamp, tinkering with the filament (the part of the bulb that produces light when heated by an electrical current) and the bulb’s atmosphere (whether air is vacuumed out of the bulb or it is filled with an inert gas to prevent the filament from oxidizing and burning out). Long before Thomas Edison patented - first in 1879 and then a year later in 1880 - and began commercializing his incandescent light bulb, British inventors were demonstrating that electric light was possible with the arc lamp. It was a series of small improvements on the ideas of previous inventors that have led to the light bulbs we use in our homes today. Like all great inventions, the light bulb can’t be credited to one inventor. It also led to new energy breakthroughs - from power plants and electric transmission lines to home appliances and electric motors. This invention changed the way we design buildings, increased the length of the average workday and jumpstarted new businesses. More than 150 years ago, inventors began working on a bright idea that would have a dramatic impact on how we use energy in our homes and offices.
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