A few times each year, an inspector arrived to look over the entire light station.

According to the passage, human being are used to living in the day light.

Advanced lights, motors, and building designs have helped save a lot of energy and therefore prevented pollution.

All riders are equipped with reflective vests and safety lights.

Although Dr Dominoni has only studied light pollution, other research concluded that robins living in noisy cities have started to sing at night to make themselves heard over loud noise.

And it is not just robins that are being kept awake by artificial light.

And the more birds are exposed to light, the more active they are at night.

Animals are built of many different materials----skin, fat, and more----and light moves through each at a different speed.

Because of the way light reflects off the organisms, these phytoplankton create colourful patterns at the ocean surface.

Because there is less light pollution.

But a transparent animal doesn't have pigments, so its tissues won't absorb light.

But a transparent object doesn't absorb or scatter light, at least not very much, light can pass through it without bending or stopping.

But some materials slow and scatter (散射) light, bouncing it away from its original path.

Change the direction of light travel.

Dark environments are more likely to encourage overeating, for people are often less self-conscious (难为情) when they're in poorly lit places – and so more likely to eat lots of food.

Darkness is as essential to our biological welfare, to our internal clockwork, as light itself.

David Dominoni, of Glasgow university, said that light from street lamps, takeaway signs and homes is affecting the birds' biological clocks, leading to them being wide awake when they should be asleep.

Every time light moves into a material with a new speed, it bends and scatters.

Frogs living near brightly lit highways suffer nocturnal light levels that are as much as a million times brighter than normal, throwing nearly every aspect of their behavior out of joint, including their nighttime breeding choruses.

He rushed into the station building and came back with a signal light.

He waved the red light as the train came into the station.

His study shows that when robins are exposed to light at night in the lab, it leads to some genes being active at the wrong time of day.

Humans are no less trapped by light pollution than the frogs.

If humans were truly at home under the light of the moon and stars,we would go in darkness happily,the midnight world as visible to us as it is to the vast number of nocturnal species on this planet.

If the red light is not blinking, contact residence hall staff immediately.

If your home doesn't have enough window light, get more lamps and flood the place with brightness.

In southern Spain the sudden increase of greenhouses which reflect light back to space has changed the warming trend locally, and actually cooled the region.

In the wild, many cats hunt at night because their eyes are designed for low light.

In this instance, the best solution is to send a quick, light-hearted apology to explain your awkwardness.

Instead, we are diurnal creatures, with eyes adapted to living in the sun's light.

Larger transparent animals have the biggest challenge, because they have to make all the different tissues in their bodies slow down light exactly as much as water does.

Light is a powerful biological force, and on many species it acts as a magnet.

Light pollution dose harm to the eyesight of animals.

Light pollution has destroyed some of the world heritages.

Light pollution is largely the result of bad lighting design, which allows artificial light to shine outward and upward into the sky.

Light typically travels in a straight line.

Living in a glare of our making, we have cut ourselves off from our evolutionary and cultural heritage—the light of the stars and the rhythms of day and night.

Living materials can stop light because they contain pigments that absorb specific colors of light.

Migrating at night, birds tend to collide with brightly lit tall buildings.

Most importantly, it needs to direct light where it is needed.

On the edge of the Jacket, there is a piece of cloth which/that gives off light in the dark.

One way for an animal to become transparent is to avoid the absorption of light.

Open the curtains and turn up the lights.

Others absorb light, stopping it dead in its tracks.

Pedestrians go through red traffic lights.

Peter have rung six times, representing the passing of winter, the pile is lit.

Some light showers have been forecast since last month, but all of them have been effective in surrounding areas.

Sorry, I dropped it and now the \on\ button doesn't light up.

Suddenly, he saw a car with its bright lights on.

The benefits of this kind of engineering come with consequences 一 called light pollution 一 whose effects scientists are only now beginning to study.

The cyclists should all have to be made to use the cycle lanes and wear helmets, fluorescent Jackets and lights at night and in the morning.

The effect is so powerful that scientists speak of songbirds and seabirds being\captured\by searchlights on land or by the light from gas flares on marine oil platforms.

The evening will be mainly dry with light mist.

The man who had his bright lights on came over and told Larry he had made an emergency call.

The objects around you are visible because they interact with light.

The real challenge is preventing light from scattering.

The way light reflects off-marine organisms.

The writer mentions birds and frogs to show how light pollution affects animals.

There are solutions that could light a path toward a more sustainable and fair farm economy, but farmers can't clumsily put them together before us.

These animals typically live between the surface of the ocean and a depth of about 3, 300 feet—as far as most light can reach.

They decorated the apartment with streamers(彩带) and party lights.

They reflect a concentrated beam of light onto the town's central square, creating an area of sunlight roughly 600 square meters.

To become transparent, an animal needs to keep its body from absorbing or scattering light.

To ensure the safe operation of the smoke detector, one should make certain the red light is working.

Transparent animals let light pass through their bodies the same way light passes through a window.

Viewing childhood development as a scientific investigation throws light on how children learn, but it also offers an inspiring look at science and scientists.

We've lit up the night as if it were an unoccupied country, when nothing could be further form the truth.

When the light appeared, Rjukan residents gathered together.

When we handed him the bag of food, he lit up and thanked us with watery eyes.

Wherever human light spills into the natural world, some aspect or life is affected.

With golden light streaming across the grassy Delta and the animals coming out to eat and drink.

Without much tissue to scatter light, it is easier to be see-through.

Yet it's the only way to explain what we've done to the night: we've engineered it to receive us by filling it with light.

Highly superior autobiographical memory' ( ' , or HSAM for short), first came to light in the early 2000s, with a young woman named Jill Price.

The findings shed light on normal age-related changes in mental function, which could aid in understanding the process of dementia ( ' , 痴呆), according to the researchers.

Ancient philosophers saw life in a different light from people of today.

They're also only a single layer in what should ideally be a many-sided approach to securing your home, one that includes common sense things like sound locks and proper exterior lighting at night.

It may shed light on people's desire to crack a secret.

And, perhaps, similar to sails, they make a useful back-up for when the lights go out.

The lighter rules that typically govern bed-and-breakfasts are more than adequate.

On the other hand,there have been hundreds of thefts and cases of deliberate damaging of public property, which usually involves breaking windows or lights or writing on walls.

It's still light in the midnight.

Most people believe that reading in dim light causes poor eyesight, but that is untrue.

Too little light makes the eyes work harder, so they do get tired and strained

I remember he was wearing a light shirt under the sweater.

A thirty-year-old guy wearing a light sweater

highly superior autobiographical memory or HSAM for short, first came to light in the early 2000s, with a young woman named jill Price.

In that light, aging itself might be seen as something treatable, the way you would treat high blood pressure or a vitamin deficiency.

The findings shed light on normal age-related changes in mental function, which could aid in understanding the process of dementia, according to the researchers.

When it does rain, it tends to be a very light rain that isn't troublesome.

with the exception of South Africa, the only light rail metro system in sub-Saharan Africa is in Addis Ababa, Ethiopia.

Interest in elite high school math competitions has grown in recent years, and in light of last summer's U.S. win at the International Math Olympiad ( ' , IMO)—the first for an American team in more than two decades— the trend is likely to continue.

It sheds new light on how unhealthy behaviors trigger mental health problems.

When you hear people speaking of making a rapid transition toward any type of energy, whether it is a switch from coal to nuclear power, or a switch from gasoline-powered cars to electric cars, or even a switch from an incandescent to a fluorescent light, understanding energy system inertia and momentum can help you decide whether their plans are feasible.

Today, a visit to a lighting store reveals a stunning array of choices.

To change the light source is costly because you have to change the whole fixture.

There are some very commendable characteristics of the CFL [compact fluorescent ( ' , 荧光的 ) light bulb], yet the selection of any light source remains inseparable from the luminaire ( ' , 照明装置 ) that houses it, along with the space in which both arc installed, and lighting requirements that need to be satisfied.

The study's most striking findings shed light on the racial biases permeating the professional world.

The problem with lighting, if it arises, often doesn't lie in light sources but in their applications.

The incandescent light bulb, invented by Thomas Edison, which came to be the symbol of inspiration, has been developed into hundreds, if not thousands, of forms.

It is quite easy, with all that choice, to change a light bulb.

It is easy to change a light bulb, sure, but it is harder to change the bulb and its fixture.

If the CFL should be used for lighting a particular space, or an object within that space, the fixture must be designed to work with that lamp, and that fixture with the room.

Changing a light bulb is easier than changing the fixture housing it.

But the momentum of incandescent lighting does not stop there.

As lighting expert Howard Brandston points out, Generally, there are no bad light sources, only bad applications.

And there is more to the story, because not only are the devices that house incandescent bulbs shaped to their underlying characteristics, but rooms and entire buildings have been designed in accordance with how incandescent lighting reflects off walls and windows.

And Brandston knows a thing or two about lighting, being the man who illuminated the Statue of Liberty.

All of those specialized bulbs led to the building of specialized light fixtures, from the desk lamp you study by, to the ugly but beloved hand-painted Chinese lamp you inherited from your grandmother, to the ceiling fixture in your closet, to the light in your oven or refrigerator, and to the light that the dentist points at you.

When it came to light last year that mothers, far more than fathers,chose to stay home from work to care for their sick kids.

We think this is the way the future is going to work,\ said Kyle Dickson, co-director of research and the mobile learning initiative at Abilene Christian University in Texas, which has bought more than 600 iPhones and 300 iPods for students Although plenty of students take their laptops to class, they don't take them everywhere and would prefer something lighter

Studying goal-setting can throw more light on successful business practices.

Just before people began entering the hall, Larry dimmed the lights and turned up the sound system, which was playing soft music, hoping to create a warm personal atmosphere for the speech.

Why did Larry dim the lights and turn up the sound system before people entered the hall

If you tell an acquaintance you are a grandfather who recently lost his wife and who does volunteer work on weekends, several elements of your self-image are bought to light — the roles of grandparent, widower and conscientious citizen.

When you reach your top height, do light activities rather than sleep too much.

Well, first of all, he kept the two dolphins together in the same tank and taught them to press levers whenever they saw a light.

If the light flashed on and off several times, the dolphins were supposed to press the left-hand lever followed by the right-hand one

If the light was kept steady, the dolphins were supposed to press the levers in reverse order.

The levers and light were set up in exactly the same way except that this time it was only Doris who could see the light indicating which lever to press first.

This meant of course that Doris had to tell Bass whether it was a flashing light or whether it was a steady light.

What were the dolphins supposed to do when they saw a steady light

Only one dolphin was able to see the light.

It's still light in the midnight.

Oh, yes, go down this aisle, pass the garden tools, you'll find them on the shelf next to the light bulbs.

People tend to work longer hours with artificial lighting.

Well, you know, spending too much time indoors with all that artificial lighting can do that to you

A nice video published online last month sheds light on expertise and the conscious mind.

All of those specialized bulbs led to the building of specialized light fixtures, from the desk lamp you study by, to the ugly but beloved hand-painted Chinese lamp you inherited from your grandmother, to the ceiling fixture in your closet, to the light i

As lighting expert Howard Brandston points out, \ Generally, there are no bad light sources, only bad applications. \

Because they're so small and light, it costs much less to get a Cube Sat into Earth's orbit than a traditional communications or GPS satellite.

Demography also includes the study of non-living objects like light bulbs and taxi cabs, and buildings because these are also populations.

In other words, rewards are more intense for teens when they are with peers, which motivates them to pursue higher-risk experiences that might bring a big payoff such as the thrill of just making the light before it turns re.

The strike comes in light of an unsuccessful 19 months of negotiations after the existing labor contract known as the Interactive Media Agreement expired in late 2014.

The whole fixture must be replaced — light source and luminaire — and this is never an inexpensive proposition.

There are some very commendable characteristics of the CFL (compact fluorescent light bulb), yet the selection of any light source remains inseparable from the luminaire that houses it, along with the space in which both arc installed, and lighting requir

They scanned the brains of teens and adults who were playing a virtual driving game designed to test whether players would brake at a yellow light or speed on through the crossroad.

When you hear people speaking of making a rapid transition toward any type of energy, whether it is a switch from coal to nuclear power, or a switch from gasoline -powered cars to electric cars, or even a switch from an incandescent to a fluorescent light

Russell Gray at the University of Auckland and his colleagues consider the evolution of grammars in the light of two previous attempts to find universality in language.

Thousands of Aztec artifacts came to light during the digging of the Mexico City subway in the 1970s.

A recent annual study of countries and their ability to convert growth into well-being sheds some light on that question.

At night, scan the horizon for artificial light sources, such as fires and streetlights, then walk toward the glow of light pollution.

British Land Art as shown in this well selected, but relatively modestly scaled exhibition wasn't about imposing on the landscape, more a kind of landscape-orientated light conceptual art created passing through.

Even before the invention of the electric light bulb, the author produced a remarkable work of speculative fiction that would foreshadow many ethical questions to be raised by technologies yet to come.

They transform the aspirations of the people who live there; they nudge the self-image of the city into a bolder and more optimistic light.

Thousands of Aztec artifacts came to light during the digging of the Mexico city subway in the 1970s.

viewed in this light, guilt is an opportunity.