photons

A photon is an elementary particle, the quantum of light and all other forms of electromagnetic radiation, and the force carrier for the electromagnetic force, even when static via virtual photons. The effects of this force are easily observable at both the microscopic and macroscopic level, because the photon has no rest mass; this allows for interactions at long distances. Like all elementary particles, photons are currently best explained by quantum mechanics and exhibit wave–particle duality, exhibiting properties of both waves and particles. For example, a single photon may be refracted by a lens or exhibit wave interference with itself, but also act as a particle giving a definite result when its position is measured.

For more information about photons check the Wikipedia article here

ZME Science posts about photons

Smallest laser is so tiny you can’t see it with the naked eye

Mon, Jul 30, 2012

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Scientists at the University of Texas at Austin, in collaboration with colleagues in Taiwan and China, have developed what’s considered to be the world’s smallest laser; a device so tiny, that it’s invisible to the naked eye. The laser is heralded as a breakthrough in the emerging photonic technology with applications from computing to medicine. [...]

Faster than light Neutrinos FINALLY and OFFICIALLY debunked

Mon, Jun 11, 2012

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This time last year, the whole scientific community was faced with one of the most controversial findings in recent history – namely, that neutrinos could travel at a speed greater than the speed of light, fact which would directly contravene with Einstein’s Theory of Special Relativity and, in consequence, force scientists to rethink the fundamental laws that [...]

Atomic-precision heat flow manipulation achieved by scientists

Mon, Apr 23, 2012

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Scientists have described and proven how many of the world’s phenomenae function, from the very fundamental laws of Newtonian mechanics, to the discrete behaviors of quantum physics, eventually peering through some of the Universe’s most well kept secrets. It’s remarkable then, how little we know about how heat is conducted through and between materials. A better [...]

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