Already semiconductors are commonly produced with resolutions that are a fraction of the wavelength of light used to produce them.

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Traveling at a fraction below the speed of light, the particles would crash into each other, creating conditions similar to those at the dawn of the universe for scientists to observe.

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The harder part will be designing a detector that can distinguish between two adjacent letters on a DNA strand, which are half a nanometer apart, a small fraction of the wavelength of light.

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The harder part will be designing a detector that can distinguish between two adjacent letters on a DNA strand, which are half a nanometer apart, a small fraction of the wavelength of light (which makes it impossible to see them).

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Roger Linfield and his colleagues at the Jet Propulsion Laboratory in Pasadena, California, who are in charge of the mission, aim to show that spacecraft flying in formation can be controlled so precisely that the distance between them varies by only a tiny fraction of a wavelength of light.

ECONOMIST: Birds of a feather

The Helieon emits the same amount of light as a 60 watt incandescent bulb but uses just a fraction of the electricity needed to do so.

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Astronomers think there are thousands of fledgling stars in 30 Doradus, a significant fraction of the original generation of stars, packed into a 600-light-year-wide nebula.

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Theoretically, Filler said, if some fraction of the LED were projected backwards into the system, embedded solar cells could capture some of that light as well.

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