Very sensitive detectors around the tunnel then record information about the types and properties of the particles given off.
The more sophisticated missiles are programmed to steer towards heat (such as that given off by a fuel-burning jet).
Pike River Mine Chief Executive Peter Whittall said the latest tests had shown there was still heat being given off underground.
Daily Mirror editor Richard Wallace told the Leveson Inquiry into press standards that police had given off-the-record briefings on Mr Jefferies.
Microturbines can run on natural gas as well as other fuels, including kerosene and the methane given off by landfills and sewage-treatment plants.
And Ms. Rice, for years, in Rumsfeldian fashion has given off the energy that she can take the heat and almost welcoming it at times.
Cancer cachexia appears to be caused by chemicals given off by the tumor or by the patient's immune system that is trying to combat the tumor.
For the study, researchers from the University of Vermont analysed volatile organic compounds (VOCs) given off in exhaled breath by different bacteria as well as different strains of the same bacterium.
The standard measure for such things is the Scoville Heat Unit, or SHU, named after Wilbur Lincoln Scoville, a chemist who in 1912 developed a method of assessing the heat given off by capsaicin, the active ingredient in chili peppers.
As well as using wind turbines to provide electricity, and straw-burning plants to provide heating, some islanders have solar panels on their roofs and others warm their homes using geothermal energy and the heat given off by fresh cow's milk.
In contrast, reducing emissions of the sooty particles known as black carbon, which are given off by inefficient combustion in cooking fires and brick kilns, and by dodgy diesel engines, offers rapid, huge and tangible public-health benefits (see article).
That happens because, provided those electrons that have given off light are quickly pumped back to their excited states, the light bouncing around between the mirrors will stimulate the production of yet more light and a powerful, coherent beam will emerge.
For an unforgettable experience, take a night walk to the arched cave and waterfall at Natural Bridge under the western ramparts of the Springbrook plateau, which is alight with fairy-like blue-green lights given off by the millions of bioluminescent glow worms that line the cave roof and the steep earth banks along the rainforest path.
They will be given Sunday off before going through more medical examinations Monday, said Col.
Mr Ward said staff from Bridgnorth Aluminium were given time off to go.
Colin Kniveton was given time off his job in the Isle of Man government to take up the four-month post.
Waxman said Chung had given similar off-the-record, unsworn briefings to the Senate Governmental Affairs Committee and to investigators from the Department of Justice.
Given the off-field turmoil that has surrounded the club, it was hardly surprising that they got off to a nervy and disorganised start.
The duo have been given time off by coach Marc Lievremont, who named uncapped duo Wenceslas Lauret and Jerome Porical in his 30-man squad.
Federico Lombardi said it was likely Francis, at least for the moment, given the off-the-cuff style, was sticking with Italian, a language he's comfortable with.
Colin Kniveton has been given time off from his role in the Isle of Man government to take up the post of interim chief secretary of Sark.
BBC: Sark civil servant says future vision is 'top priority'
Lock Chabal and hooker Servat, who boast 85 caps between them, have been given time off by Lievremont ahead of next year's Rugby World Cup in New Zealand.
Some would say that Tiger Woods easily makes the lust for life cut, given his off-the-course antics, but despite his all-too-human mess of a personal life, his image is too highly constructed for anybody to discern a human being beneath it.
With Super League's top points scorer Pat Richards having been given the night off from kicking duties, Australian hooker Mark Riddell was also given his chance with the boot, finishing with six goals from eight attempts.
Do you feel like you are given one-off projects with no real career value?
Frank Lampard and Nicolas Anelka started on the bench, while keeper Petr Cech was given the night off.
The tourists needed something special after Lara was given caught behind off Warne, although replays suggested he was unfortunate.
The day before the celebrations in Bindura, residents were given an hour off work to clean the town's streets.
Many of those taking part were schoolchildren who had been given the day off and bussed in for the occasion.
Currently, workers for Anglesey County Council are the only local authority staff given a day off to celebrate the life of St David.
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