Scientists Have Developed World’s Smallest Light Bulb
By May 16th, 2009Saturday, May 16, 2009 6:42 on
The world’s smallest incandescent lightbulb developed by a team of researchers from the University of California, is said to be 100,000 times narrower and 10,000 times shorter than those made by Edison.
The bulb is so small that it’s impossible to see it with naked eyes. The filament of the bulb is made up of single carbon nanotube and is just 100 atoms wide. Researchers say that theirs creation is very valuable find as it can guide energy efficient LEDs in more effective path.
“Thermodynamics, the crown jewel of 19th-century physics, concerns systems with many particles. Quantum mechanics, developed in the 20th century, works best when applied to just a few. The UCLA team is using their tiny lamp to study physicist Max Planck’s black-body radiation law, which was derived in 1900 using principles now understood to be native to both theories.
Planck’s law describes radiation from large, hot objects, such as a toaster, the Sun or a light bulb. Some such radiation is of fundamental and current scientific interest; the thermal radiation left over from the Big Bang, for instance, which is called the cosmic microwave background, is described by Planck’s law.”
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