This slowly moving clump was composed entirely of sodium atoms, effectively turning light into matter.
BBC: NEWS | Science/Nature | Cool clouds turn light to matter
"The overall effect is not going to be turning a light switch off" and banishing the entire US to darkness come the stroke of midnight, says Memo Diriker, director of the European-American Business Institute at Salisbury University.
There are some points of value, such as turning off a light from afar, adjusting a thermostat or checking if you left the oven on.
We tend to manage what we measure, and by identifying a specific bedtime, you might find yourself developing the habit of turning off the light earlier.
Although the exact mechanism is still not entirely understood, it turns out that illuminating the liquid crystal, applying a voltage across a small region of it, and then turning off the light source causes a small amount of charge to be stored in that region.
All of these things and more are described in a straightforward style that keeps pages turning without making things artificially light.
In commissioning its study about how businesses can take full advantage of this dynamic new world, Oracle sought to shed some light on the requirements for turning machine-to-machine raw data into actionable intelligence, along with an eye toward how those demands might shift over time.
FORBES: Big Data Set to Explode as 40 Billion New Devices Connect to Internet
"For now the warning light is orange but it risks turning red if the appropriate measures are not taken, " he said, recommending a national conference of all political parties to forge a common anti-terrorism strategy.
And those gas guzzling light trucks and SUVs, consumers are turning away from those, and as a result the U.S. auto industry is suffering.
The loss of England fly-half Wilkinson to a rib injury early in the second half, with Toulon leading 13-6 at that point, was a turning point as the French team lost their guiding light.
Customers can minimize power surges by turning off appliances, lights and other equipment, except for one task light to determine when power has been restored.
But with all eyes now turning to Iraq's first election of a full-term parliament, a pinpoint of light may be visible at the end of the tunnel.
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