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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). These early bulbs had extremely short lifespans, were too expensive to produce or used too much energy.Biden may have been referring to Lewis Latimer; LiveScience adds, "Several months after the 1879 patent was granted, Edison and his team discovered that a carbonized bamboo filament could burn for more than 1,200 hours. Bamboo was used for the filaments in Edison's bulbs until it began to be replaced by longer-lasting materials in the 1880s and early 1900s. In 1882, Lewis Howard Latimer, one of Edison's researchers, patented a more efficient way of manufacturing carbon filaments."
When Edison and his researchers at Menlo Park came onto the lighting scene, they focused on improving the filament — first testing carbon, then platinum, before finally returning to a carbon filament. By October 1879, Edison's team had produced a light bulb with a carbonized filament of uncoated cotton thread that could last for 14.5 hours. They continued to experiment with the filament until settling on one made from bamboo that gave Edison's lamps a lifetime of up to 1,200 hours — this filament became the standard for the Edison bulb for the next 10 years. Edison also made other improvements to the light bulb, including creating a better vacuum pump to fully remove the air from the bulb and developing the Edison screw (what is now the standard socket fittings for light bulbs).





Because of their highly eccentric orbits, the trajectory followed by most comets is almost perpendicular to the Sun's electric field. This means that the surrounding electric potential rapidly changes during the comet's journey across the solar system.1 This subjects the comet to increasing electric stress brought on by increasing electric potential difference between the comet and its surrounding space. This imbalance in electric potential triggers massive solar discharges and comet outbursts [...]In our own time, when we consider how many comets have been recorded in our skies of late, our entry into a grand solar minimum, that Earth's weakening geomagnetic field has reached an all time low - which serves to shield our planet from incoming space weather - an extreme solar storm event similar to any of those mentioned above is highly possible and could be a catastrophe for our planet as we know it.
1 Thornhill, W. & Talbott, D., The Electric Universe, p. 90-95
Comment: Correlation is not causation, and there are a number of other disciplines that bring valuable information to the table, because, as noted in How did the Harrappan civilization avoid war for 2,000 years?, climate change wasn't the only challenge the IVC was struggling with: See also: