light bulb
also referred to as: light bulbs
2 statements across 1 episodes · 1 bullish · 0 bearish · 1 people on the record · first statement Mar 23, 2021 by Matt Ridley · across every show →
Everything said about light bulb, oldest first
Mar 23, 2021 positive
Ridley: Edison beat 20 rivals by testing 6,000 different plant filaments
“The difference between him and the 20 other people who invented the light bulb around the same time is that he was prepared to put in the slog of testing 6000 different types of plant material before settling on Japanese bamboo for the filament of his light bu…”