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Visionaries

World's Smallest Light Bulb

Scientists at UCLA have constructed the world's smallest light bulb. When it's turned off, the tiny filament is invisible to the naked eye. Flip the switch, however, and it becomes a tiny pin-prick of light.

The minuscule bulb was created using carbon nanotube technology, a much touted scientific breakthrough that has, until now, been used to do little else other than create portraits of our dear leader. The carbon filament that creates the light is only 100 atoms wide -- tens of thousands of times smaller than the filament used by Edison in his first light bulb.

What practical purpose does such an itty-bitty light serve? Well, none, but research from the project could prove invaluable. The carbon nanotube that is large enough that the traditional laws of thermodynamics apply, but small enough to be considered "molecular," the scale at which the laws of quantum mechanics come into play.

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Computers

Is the Hadron Collider Still Going to Destroy the World?

Fox News Makes Unqualified Assertion that LHC Will Kill Us All

We thought that we had heard the last from the doom-sayers about the Large Hadron Collider (LHC), but of course leave it to that bastion of high-quality journalism, Fox News, to find a research paper that slightly contradicts accepted scientific assumptions about the LHC and twist them into prophecies of world-ending catastrophe.

A new study from three scientists, Roberto Casadio of the University of Bologna, and Sergio Fabi and Benjamin Harms of the University of Alabama, suggests that the initial math regarding the decay of the microscopic black holes may have been slightly off. It was originally anticipated that the tiny black holes scientists hoped to create with the LHC would decay in under a millisecond. This new study, however, suggests that they may last much longer -- possibly past the one-second mark.

Of course, the Fox News science and technology department seems to think this means that the LHC will create a black hole that will grow at an uncontrollable rate and swallow the Earth. This position, however, completely ignores the findings of the new study, which clearly states that the black holes will still decay quicker than they can accumulate mass, and will disappear safely into the atmosphere or the Earth.

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Scientists Succeed With Teleportation Experiment

This story gets a little heady and, to be honest, we're not entirely sure we completely understand it ourselves. What we do know is that scientists have made a huge advancement in the field of teleportation, taking a step necessary to the development of quantum computers.

Scientists managed to teleport information from one atom to another from a distance of about one meter. While this isn't really getting us much closer to the 'Star Trek'-like ability to beam people around the universe, it does allow for instantaneous transmission of information without it passing through physical space. Previously, similar accomplishments have been made with photons (the basic unit of light) and between nearby atoms with the assistance of a third, but these have not proven useful for the long-term storage and long-distance transmission of information.

This breakthrough was accomplished using a phenomena known as quantum entanglement. Atomic and sub-atomic particles can be entangled, meaning their states (such as spin or polarization) are linked, regardless of distance and obstacles. The state is unknowable until a measurement of either particle is made (see Schrödinger's cat), but once the state of one particle is measured the state of the other is instantly determined.

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