Light the Cities of the Future
A previously unlit cycle path in the Netherlands has recently drawn our attention. It has been resurfaced with a material that consists of thousands of shining stones in order to create a well-lit route. The Van Gogh Path, so called after the artist who lived in the town of Nuenen in 1883, combines the traditional with the contemporary in a gesture that acknowledge ledges Van Gingh’ masterpiece The Starry Night, but also shows the way ahead for city lighting. The Van Gogh Path is not a single case; it is not difficult to foresee a time when natural materials could help light the cities of the future.
Why should we care about city lighting? What’s wrong with current electrical city lighting anyway? Well, the problem that it causes is two-fold. First, of course, electrical lighting in most cities comes from non-renewable resources. According to the International Energy Agency, almost 20% of global electricity is consumed for lighting, which is responsible for high levels of carbon emissions. But there’s also the belief that electrical light itself is a form of pollution by destroying our view of the night sky.
From the above reasons, then, it seems wise to investigate other approaches. The city of Glasgow is attempting to use intelligent street lighting to monitor how citizens interact with the urban landscape and minimize electrical consumption and thus emissions. This “Smart City approach” is seen by many as the way of the future, but some designers aren’t convinced. They are pioneering the altogether more original approach of using materials from the natural world in order to replace electrical light entirely. They believe that this new “technology” can one day completely replace microchips and digital systems as we find better ways of making use of the light-producing mechanisms (制) that already exist in the natural world.
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________Meet the Woman Who Gives Rescued Farm Animals a Second Chance at Life
Shortly after doctors diagnosed ten-year-old Jenny Brown with bone cancer, they had to cut off her right leg below the knee to save her life. Facing a year of chemotherapy (化疗) after the surgery, Jenny begged her mother for a kitten. The orange calico Jenny named Boogie rarely left her side, licking tears from her cheeks after hospital visits and curling up in her lap as she adjusted to life with a prosthetic (假肢的) leg.
“My relationship with Boogie showed me that animals think, feel, and suffer as much as we do,” says Jenny, now 44.
In 1994, Jenny graduated from Columbia College Chicago and began a career in television and documentary production. On the side, she volunteered as a videographer for animal rights groups, and in 2002, she shot undercover footage of horrible animal mistreatment at several Texas farm animal stockyards. “After seeing that, I knew I needed to help animals,” says Jenny.
A year later, she gave up her film career and with her fiancé, Doug Abel, a film editor, opened the Woodstock Farm Sanctuary, a nonprofit organization dedicated to rescuing and recovering farm animals, on a 22-acre property they bought in the rolling hills of Woodstock, New York, the next year.
In August 2007, she received a call from Animal Care and Control of NYC about a small goat it had found hopping around Prospect Park. Jenny guessed it had run away from one of the city’s murder-houses. The goat’s legs were severely injured, probably from being bound together with wire, and its mouth was covered in aching.
Jenny and her team brought the goat, which they named Albie, to the preserve, but they soon realized that Albie’s left front leg was injured beyond repair. After a veterinarian(兽医) cut off the leg. Jenny asked Erik Tomkins, the doctor who makes Jenny’s prostheses, to fashion a leg for Albie. To date, seven of the preserve’s animals have received prosthetic limbs or braces. “On most farms, animals with these illnesses would be immediately killed,” says Jenny.
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
91. The Problem of Packaging
A large source of rubbish is packaging material. It often makes up more than 30 percent of the total. To understand why this is true, think of the packaging commonly used for a simple product, such as toothpaste. The packaging includes not only the tube for the toothpaste, but also the box for the tube. This box is put into a plastic wrapper. Then, the boxes are transported in a cardboard container.
Most packaging material ends up in a landfill after it is thrown away. Though necessary, landfills take up valuable space, often stink, and can leak harmful substances into the soil. Landfills not included, the production of packaging material itself is a major source of air and water pollution.
People are now trying to solve the problems caused by packaging materials. In 1991, Germany took the lead by requiring companies to recycle the packaging used for their goods. To do this, the companies set up recycling bins in every neighborhood. Consumers now separate their rubbish into three categories—metal, plastic and paper cartons. They then put it into the appropriate bin. The rubbish sorted, it is transported to recycling company for processing.
The programme worked well at first. However, the amount of rubbish has begun to increase again. One reason for this is that many consumers no longer reduce waste because they think the problem is solved. It seems that to properly deal with the problem of rubbish, everyone must remain alert and do their part.
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Public Opinion Counts
Modbury is a typical small town of the south of England with a population of about 1,600. Typical, that is, apart from the fact that there are no plastic carrier bags in the town. None. Plastic bags have been well and truly dumped!
The removal of the plastic bags was the brainchild of Rebecca Hosking, Modbury resident and documentary-maker. Filming a documentary in the Pacific Ocean, Rebecca was horrified at the effects of plastic bags on the wildlife off Hawaii. Among other things, she saw seabirds fatally trapped in plastic bags that don’t biodegrade. When Rebecca returned to her hometown, she discussed this problem with people, including the shopkeepers and everyone supported her suggestion to make the town plastic bag free.
But for Rebecca’s concept, Modbury would still be an unremarkable little place. Now, however, shoppers take re-usable cotton bags shopping with them, or they buy biodegradable corn starch ones on the shops. The shopkeepers now wrap their goods in paper. To prove that the townsfolk are not only committed to reducing plastic waste, they organised a mass beach clean-up last year. Dozens of volunteers came to the beach on the appointed day to clean it up, taking the rubbish that visitors throw away and recycling it. And the greatest part of that rubbish was... no, not plastic bags, but plastic bottles.
Becoming the first town in Europe to ban plastic bags, Modbury is now harvesting the rewards of fame — reporters and camera crews from newspapers and TV channels across the world are coming to this mild town to find out its secret. And, contrary to some of the initial reports, it is a normal town, trying to live life in a slightly different way. As one resident put it. “We’re ordinary people, but we want to make just a little difference.”
Caves are important in many areas of science. Earth scientists study how rock forms and changes in caves. Biologists visit caves, too, to learn about the unusual species that live in them.
However, caves are important for another reason. On the walls of some caves are paintings. They were made by people who lived thousands of years ago. Some of the earliest paintings, like the ones in EL Castillo Cave in Spain, are forty thousand years old. Some are outlines of hands or simple designs. Others show animals or people hunting. They were painted using natural red, orange, white and black minerals. These works of art connect us with people who lived long ago.
Interestingly, most of these cave paints were not found by scientists. They were found by people exploring caves for fun. For example, the cave paintings in Lascaux, France, were found in 1940 by a group of boys. They had no idea that the pictures they found on the walls of the cave were over seventeen thousand years old. Over the years, people have found these types of amazing paintings in sites all over the world.
You can explore these caves, too. Some have become very popular tourist sites. They are easy to visit and have underground tours for the public. However, exploring other caves can be more difficult. You must be careful, and you need to be prepared for cold, darkness and danger. And you might have to walk through mud or water. Dress warmly and bring special equipment, such as helmet with a light. But these underground worlds are so fascinating that it is worth the trouble.
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Are People Unique?
It is human beings' pride that we are the only species on the Planet that can speak and think. However, recent research casts doubt on that common belief.
Zuberbuhler, a psychologist at St Andrews University, and his colleagues recorded thousands of calls made by Diana monkeys and noticed that the monkeys adapted their calls to change the meaning to warn one another about different situations. For example,they made a "krack" alarm call at the sight of a tiger. However,when they merely repeated calls made by other monkeys they added an "oo".
The researchers found that the same calls would be recognized by other species, like Campbell's monkeys. So they are communicating across species."And since then we have found that hornbill birds can understand these calls and they too can understand all the different meanings, said Zuberbuhler. What is also surprising is that signs of intelligence have been found in birds whose small brains were long assumed to be a complete barrier to intelligence. However, all that is changing fast. A few years ago, Irene Pepperberg of the Massachusetts Institute of Technology taught a parrot to recognize and count up to six objects, which couldn't have been achieved if birds were unable to memorize.
Last year that was topped by Alex Kacelnik, a professor of behavioral ecology at Oxford, who discovered that crows (乌鸦) are capable of using tools in complex orders, the first time such behavior had been observed in non-humans. In an experiment seven crows successfully grabbed a piece of food placed out of reach using three different lengths of stick. Crucially, they were able to complete the task without any special training, suggesting the birds were capable of a level of abstract reasoning normally associated only with humans.
All this is powerful evidence against the idea that people are unique.
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
When people think of plants, they usually think of gardens, parks, or even jungles. One place that does not usually come to mind is the desert. However, some deserts contain many plants that are able to grow and survive under difficult conditions.
Deserts can reach temperatures of 50 degrees or more in the daytime and can also drop below 0 degrees at night. This is a huge temperature difference under which desert plants have to live. Besides the high and low temperatures, all deserts receive very little water in the form of rain; sometimes it doesn’t rain for months. So, how do desert plants get water when there is no rain?
There are three main ways plants survive in the desert. First, some desert plants grow without leaves. Others have developed special ways of storing whatever water they can find, such as growing a waxy leaf covering that helps keep water inside the leaf. These plants can survive for weeks or months on the water collected from just one rainfall.
A second way desert plants survive even in the most difficult conditions is by growing very long roots. These roots spread out and search for any water they can find. Once they find water, the roots suck up as much as they can and then hold it, only allowing the plant above the ground to have small amounts at a time.
The third way plants survive in the desert is by “sleeping”. Some plants can turn off almost all their processes and just remain inactive, almost as if dead, while they wait for rain. When the rain does come, they quickly drink up every drop they possibly can and burst back into activity.
__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Every country has a capital city. It is where the government of the country meets. The capital city is often the largest and most important city in a country and it has more people, shops, businesses, offices and factories than anywhere else.
The Romans founded a city, which was called Londinium, by the River Thames in AD 43. The area is now the City of London, which is the business centre of the city. The Romans built the first London Bridge. In the 11th century, a royal palace and then a minster (a large and important church) were built 3 km to the west of the city. As London grew and became more crowded, and roads and railways were built, people moved to the suburbs of the city to live. What were once outlying villages and towns were swallowed up, forming Greater London. By the 1860s, London was so crowded that railways had to be built underground. The London Underground now carries millions of passengers every year.
As the capital city, London needs good communications with the rest of the United Kingdom and the wider world. Five airports serve London: Heathrow, Gatwick, London City, Luton and Stansted airports. Heathrow is one of the world’s busiest international airports. There are flights to and from about 220 places worldwide, and more than 40 million travelers use the airport each year. There are also new docks, able to handle large modern ships, at Tilbury, near the mouth of the Thames.
Almost all of the country’s main railway lines and motorways, and many of its main roads, radiate (辐射) out from London. Trains using the Channel Tunnel to mainland Europe start in London, and there is a direct motorway link between London and the Channel Tunnel.
Could goats become our new best friends?
In a new paper in the journal Biology Letters, researchers from QMUL's School of Biological and Chemical Sciences found that goats respond to people by gazing at them when facing a problem they cannot solve alone, and their responses change depending on the person's behaviour.
To investigate, the team trained goats to remove a lid from a box to receive a reward. They made the reward inaccessible and recorded their reaction. In the test, the goats redirected their gaze frequently between the inaccessible reward and human experimenters. They also gazed towards a forward facing person earlier, more often and for longer compared to when the person was facing away.
The results provide strong evidence for complex communication between humans and goats, which were domesticated primarily for agricultural production, and show similarities with animals bred to become pets or working animals, such as dogs and horses.
The research indicates that the domestication of animals has a much broader impact on our knowledge about human-animal relationship than previously believed. For example, it's thought that the capacity of dogs to be aware of information from humans is the result of changes to the brain from becoming a companion animal through domestication.
“Goats were the first livestock species to be domesticated, about 10,000 years ago,” said lead author Dr Alan McElligott from the School's Department of Biological and Experimental Psychology.
From our research, we know that many domesticated animals for agricultural production are smarter than their reputation suggests, and these results show how they can communicate and interact with their human handlers just as pets or working animals.
The researchers hope the study will lead to a better understanding of how skilled livestock are in their ability to solve problems and interact with humans. They also wish that an improvement in animal welfare would be reached ultimately.
