Fothergill and Linfield couldn't use lights or normal cameras because they would have frightened away the animals.
One Christmas he persuaded a shop to use white lights for its big displays instead of coloured ones.
The results showed that residential electricity use actually rose by 8% because people tended to use more lights and keep them on longer believing that the lighting was cheaper.
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While the driving lights are the first use of a laser beam reflected off a mirror, the daytime running lamps, with their characteristic "torch" effect, and the indicator lights use LEDs.
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New York- and London-based art gallery David Zwirner will be presenting for the first time in South America, featuring works from artists including American painter Alice Neel and minimalist artist Dan Flavin, famous for sculptures and installations that use fluorescent lights.
Super efficient lights known as LEDs are in widespread use in car tail lights, cell phones, and TV screens around the world.
The lights use two mechanisms to tell the LEDs when to turn on and off.
We use our tower lights to partner with select charities, organizations, and events around the world.
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Fluorescent and LED lights use nearly two-thirds less energy than regular light bulbs, are significantly brighter, and, according to Consumer Reports, will last nearly 50-times longer than incandescent bulbs.
Meanwhile, umpires will have earpieces in all international matches so they can listen to the stump microphones and the use of artificial lights during Test matches will be discontinued.
Morocco's home tie against Angola is due to kick off in the evening but Uganda cannot play their match at that time because they cannot afford to use the stadium lights.
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Steven Burt, G24's chief financial officer, talks of light-bulb-powered TV remote controls, smoke detectors and computer keyboards. (A non-removable internal battery would store charge for use when the lights are off.) The company already offers prototypes of bags and jackets with photosensitive panels woven in, designed to charge digital cameras and mobile phones, and a hotel in Las Vegas is using G24's products to run its electric window-blinds.
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They're also developing LEDs for use in endoscopic surgery to replace the xenon lights currently in use, which are bulky and don't last long.
And the flickering lights, use of shadow, and constant creepy noises made for an ambience that kept me on my toes while I played.
Most of us also heat our houses, and use electricity for the lights, TV, home appliances and even the computer And everyone eats, too, right?
He said it was because the festival involves the use of candles, tea lights and fireworks.
These solid state lights have a 50, 000-hour lifespan and use half the electricity of traditional metal halide street lights.
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"In hotels, switch off lights and re-use linens, " advises Chan.
As anyone who has experienced such a system knows, it does not take long to learn to shut off the lights and to avoid use of some of the more power-hungry appliances.
The hospital also hopes to save millions by turning off lights and computers when not in use.
But the optical switch takes the flickers of lights flashing by and, with the use of its micro-mirrors, redirects them from one optical fibre to another.
Consumers can help by shutting off unnecessary lights and electrical appliances, minimizing the use of air conditioning and delaying laundry and other activities requiring electricity-consuming appliances until later in the evening.
Educators are putting more lights in classrooms, asking textbook publishers to use larger print, and even encouraging teachers to scrawl more legibly on blackboards.
If we use your review, you'll see your name in lights for all of the other HD Beat readers to see!
Use tele- and wide angle lenses, attach microphones and lights.
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Nearly all historic efforts to reduce building energy use have focused on either human factors (change behaviors with tax incentives or regulations) or hardware (use better building materials, improve systems like the cooling and lights, etc.).
There are also divisions about the use of kerosene lamps on carriages as opposed to LED or flashing lights, indoor versus outdoor toilets, and whether children can access social media and other modern technology.
It is a corrective lens I can use to click the world back into focus, to flip my inner lights back on.
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The town is thought to be the first in the UK to use the system in which cars going over the speed limit will trigger the lights up ahead.
He pointed to a recent move to allow greater use of so-called "Trixi mirrors" - which are fitted to traffic lights to give lorry drivers a better view of cyclists on their left side at road junctions - as evidence of how serious the issue of safety was viewed.
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