Incandescent lights work by turning heat into light. You run an electric current through a filament, the filament heats up, and as it does, it starts to glow. The basic element has been around since 1809. The trick is finding material for a filament that will get hot enough to glow, but won't destroy itself too quickly. In fact, that's really the breakthrough Thomas Edison brought to the table in 1879. His carbonized bamboo filament lasted for 1200 hours—long enough to make the investment in a light bulb worth it. According to sources I found in the Wisconsin Historical Archives while researching my upcoming book on the past, present, and future of electricity, one of Edison's bulbs cost the equivalent of $36 in 1882.
This is not one of the earliest Edison bulbs. It's a later model, with a tungsten filament, dating to 1912. It was found in a time capsule at NELA Park, the General Electric headquarters and research laboratory that was opened that year. There were five light bulbs in the time capsule. This is the only one that GE engineers were able to get to light up. In the video, you can see it faintly glowing, 100 years after it was squirreled away.
“A sneezing monkey, a walking fish and a jewel-like snake are just some of a biological treasure trove of over 200 new species discovered in the Eastern Himalayas in recent years,” reports the World Wildlife Foundation today.
Three scientists won the world’s top science prize today, for their “mechanistic studies of DNA repair.” Their work mapped how cells repair deoxyribonucleic acid (DNA) to prevent damaging errors from appearing in genetic information. Tomas Lindahl, Paul L. Modrich and Aziz Sancar today received the Nobel Prize in Chemistry for “having mapped and explained how […]
Maciej Ceglowski (previously) spoke to a O’Reilly’s Strata Big Data conference this month about the toxicity of data — the fact that data collected is likely to leak, and that data-leaks resemble nuclear leaks in that even the “dilute” data (metadata or lightly contaminated boiler suits and tools) are still deadly when enough of them […]
Watching Netflix, Hulu or other streaming services can unfortunately be difficult while traveling outside the US. Rather than bypass these restrictions with the help of a complex and slow VPN, choose a faster and simpler solution with Getflix. Instead of rerouting all your Internet traffic through a different server, this handy service only routes the […]
Shake, stir, and muddle your way to delicious homemade cocktails with this must-have bar set. Expect only the finest quality tools from MakersKit — enabling you to unleash your inner mixologist.Top 12 Favorite Things of 2014, Sunset MagazineQuart-size vintage-style Mason jar shakerRetro double jigger for accurate measurementsStrainer & spouts for a mixologist-style smooth pourHardwood muddler […]
The Lytro Illum dares to be different, boasting even more robust features than its first generation predecessor and a sleek design reminiscent of professional DSLRs. What’s so cool about it? Most cameras capture the position of light rays, producing a statoc 2D image.