The extraordinary Eastgate Building in Harare, Zimbabwe's capital city, is said to be the only one in the world to use the same cooling and heating principles as the termite mound (白蚁堆).

    Architect Mick Pearce used precisely the same strategy when designing the Eastgate Building, which has no air conditioning and almost no heating. The building is the country's largest commercial and shopping complex but uses less than 10% of the energy of a conventional building of its size. The Eastgate's owners saved 3.5 million on a 36 million building because air conditioning didn't have to be equipped.

    The complex is actually two buildings linked by bridges across a shady, glassroofed atrium (天井) open to the air. Fans suck fresh air in from the atrium, blow it upstairs through hollow spaces under the floors and from there into each office through vents (通风口). As it rises and warms, it is drawn out via ceiling vents and finally exists through fortyeight brick chimneys.

    During summer's cool nights, big fans blow air through the building seven times an hour to cool the empty floors. By day, smaller fans blow two changes of air an hour through the building to circulate the air which has been in contact with the cool floors. For winter days, there are small heaters in the vents.

This is all possible only because Harare is 1,600 feet above sea level, and has cloudless skies, little dampness and rapid temperature swings-days as warm as 31 ℃ commonly drop to 14℃ at night. “You couldn't do this in New York, with its fantastically hot summers and fantastically cold winters,” Pearce said.

The engineering firm of Ove Arup & Partners monitors daily temperatures. It is found that the temperature of the building has generally stayed between 23 ℃ and 25 ℃, with the exception of the annual hot period just before the summer rains in October and three days in November, when a doorkeeper accidentally switched off the fans at night. And the air is far fresher than in airconditioned buildings, where up to 30% of the air is recycled.

    Scientists in Britain have managed to teach bumblebees(大黄蜂) to pull strings to get to food and then pass on what they have learned to others in their colony(群体)—showing a high level of intelligence despite their tiny brains.

    Researchers at Queen Mary University of London said the experiments, often used to test the intelligence of apes (猿) and birds, showed for the first time that some insects are up to the task, and can also pass skills on through several generations.

    The findings add to the evidence suggesting the ability for “culture spread” — the ability to learn and pass on knowledge and skills — may not be exclusive to humans.

    In the research, published in the journal PLOS Biology on Tuesday, the scientists were able to train 23 out of a group of 40 bees to pull strings with their legs and feet.

    The strings were attached to discs — or artificial “flowers” — containing food at their center but placed under a transparent screen. The bees, spotting the food beneath the screen, learned to pull the “flowers” out by pulling the string with their legs and feet to be able to get to it.

    From another group of bees given the chance to solve the task without any training, only two of 110 were successful.

    Another group of bees was then allowed to observe the trained bees pulling the strings, and 60 percent of them successfully learned the skill. Finally, trained bees were put in colonies, and the scientists found the technique spread successfully to a majority of the colony's worker bees.

    Lars Chittka, a Queen Mary University professor who guided the project, said the team is interested in figuring out the brain processes behind the bees' learning and teaching skills.

    Exhibitions in the British Museum

    Hokusai: beyond the Great Wave

    Katsushika Hokusai (1760-1849) is widely regarded as one of Japan's most famous and influential artists.He produced works of astonishing quality right up until his death at the age of 90.This new exhibition will lead you on an artistic journey through the last 30 years of Hokusai's life—a time when he produced some of his most memorable masterpieces.

    25 May—13 August 2017

    Room 35

    Adults￡12,Members/under 16s free

    Places of the mind: British watercolour landscapes 1850-1950

    Drawn from the British Museum's rich collection,this is the first exhibition devoted to landscape drawings and watercolours by British artists in the Victorian and modern eras—two halves of very different centuries.

    23 February—27 August 2017

    Room 90

    Free, just drop in

    Scythians: warriors of ancient Siberia

    This major exhibition explores the story of the Scythians—nomadic tribes and masters of mounted warfare, who flourished between 900 and 200 BC. Their encounters with the Greeks, Assyrians and Persians were written into history but for centuries all trace of their culture was lost—buried beneath the ice.

    14 September 2017—14 January 2018

    Room 30

    Adults￡16.50,Members/under 16s free

    Politics and paradise: Indian popular prints from the Moscatelli Gift

    This display is part of the Museum's contribution to the India-UK Year of Culture 2017.It looks at the popular print culture of India from the 1880s until the 1950s.

    19 July—3 September 2017

    Room 90a

    Free,just drop in

    Britain's pub landlords (酒吧店主) are looking with a worried eye to the UK Chancellor's budget for fear that the annual tax gathering round will strike another blow to a traditional industry already reeling (蹒跚). Thousands of pubs have closed since the financial crash in 2007.

    The Plough, which was once a coaching house for travelers, has been serving Britain's famous warm beer since the days of Shakespeare. Now it is under threat too. "Yeah. So many pubs have been closed over the last few years even in this area," said Derek O'Neil, the manager of The Plough Pub.

    Many reasons are the cause—a ban on smoking in public, severe laws against drinking and driving and high taxes have all combined to kill off nearly 10,000 pubs in the last seven years, according to the British Beer and Pub Association. With the closures, pubs are being redeveloped. Many have turned into supermarkets, where the beer is sometimes cheaper.

      Britain's pubs continue to play an important part in the UK economy, selling thousands of different beers and employing more than a million people. The reality, though, is pubs are suffering something of a hangover (遗留物). In the last 15 years the amount of beer sold in pubs has fallen by eight million barrels to just under 36 million a year. Pub landlords want tax breaks (税务减免).

    "People have less money in their pockets, so they can't go out and spend it and habits are changing—so much alcohol is nowadays drunk at home," said Brigid Simmonds, Chief Executive of the British Beer and Pub Association. "Yeah, I miss the pubs where there's a lot of character, especially 30 years ago. You know there was great fun in them."

While pubs are still much loved, they're discovering that love isn't enough to survive 21st century economics.

    TESCO has announced it is banning the sale of energy drinks to teenagers, and that the big move will begin in weeks. The supermarket has joined a host of major names banning teenagers from buying high caffeine, high-sugar drinks. The government indicates that the principal question to be determined is whether the purchasing restrictions will apply at the age of 16 or 18.

    Theresa May said the consultation was linked to the government's childhood obesity (肥胖) strategy and said it was necessary to examine the consumption of energy drinks "often because they are sold at cheaper prices than soft drinks".

    The principal reason for the ban is the high level of caffeine in the energy drinks, which has been linked to a string of health problems for children, including head and stomach aches as well as sleep problems.

    Energy drinks often also have higher levels of sugar than soft drinks. According to government figures, sugared energy drinks have 60% more calories and 65% more sugar than normal soft drinks and sugar is one of the largest causes of obesity.

    Jamie Oliver said he welcomed the ban on energy drink sales because "too many children are regularly using them to replace breakfast" and "teachers from across the country have told me how their lessons are disrupted because of these drinks".

    A Downing Street source added that there is no evidence that energy drinks have any nutritional value in children's diet. That accounts for the government's action on measures to tackle childhood obesity and improve children's health.

    The move is the latest step in an approach in relation to childhood obesity and health. According to European Food Safety Authority research, two-thirds of 10 to 16-year-olds regularly consume energy drinks, along with 18% of 3 to 10-year-olds.

The UK is home to 26 world-ranked universities of the top 200 globally. At the heart of each university is the library, a space for students to access resources, absorb knowledge and gather thoughts. Here are some of our must-visit libraries across the UK. 

The British Library, London

Located in London, the British Library is home to over 170 million items. The collections offer a glimpse into literary heritage over the ages, from books to maps to manuscripts. Visitors can browse treasures including Leonardo da Vinci's notebook. Students with a reading pass are known to spend hours at a time in the reading rooms.

Bodleian Old Library, Oxford

Dating back to 1488, the Bodleian Old Library has three notable reading rooms. It is celebrated for its late Gothic architecture. You may recognize the elaborately carved ceiling from scenes in Harry Potter. Students at the university automatically get access to the library.

John Rylands Library, Manchester

Opened in 1900, this library is part of the University of Manchester, one of the top five universities in the UK. This library offers limitless research potential for students. Whether you want to make use of the rich collections available, or simply explore the site, this library should be on everyone's must-see list.

The Mitchell Library, Glasgow

The Mitchell Library is one of Glasgow's most famous landmarks. On the top of the copper dome (圆屋顶) is a bronze statue of the Roman goddess, Minerva. Visitors can climb the dome for the city's most distinctive rooftop views.