5 . It is that time of the year, when a handful of world’s leading scholars, social activists and researchers are rewarded with what is often cited as the most prestigious acknowledgement of human effort-the Nobel Prize. Here’s a look at who has won the prize and for what.

Physiology or Medicine

Swedish geneticist Svante Peabo won the first Nobel of the year, for starting the field of ancient DNA studies. He is well-known for extracting, sequencing, and analyzing ancient DNA from Neanderthal bones.

Physics

Alain Aspect, John F. Clauser and Anton Zeilinger’s work in quantum (量子) technology landed them the second Nobel Prize announced in 2022. Although Aspect is from France, Clauser from the U.S, and Zeilinger from Austria, the three separately performed “groundbreaking experiments” as one team. “Their results have cleared the way for new technology,” the committee stated.

Chemistry

The Nobel Prize for chemistry went to another trio, Carolyn R. Bertozzi from the U.S., Morten Meldal from Denmark and K. Barry Sharpless from the U.S. “for the development of click chemistry and biorthogonal chemistry,” the committee stated. Dr. Bertozzi is the eighth woman chemist to be awarded the prize, while Dr. Sharpless is the fifth scientist to be awarded two Nobel Prizes.

Economics

The Prize in Economic Sciences was awarded to three American economists, Ben S. Bernanke, Douglas W. Diamond and Philip H. Dybvig “for research on banks and financial crises,” the Nobel Prize committee announced on Monday. By studying the history of American economics, particularly the Great Depression of the 1930s,they improved how we understand the role of banks during times of hardship and the bank’s impact on societal functions.

6 . This week, Parisians have been treated to the sight of ecotaxis, transporting people up and down the river Seine. They are called SeaBubbles and are being tested ahead of the decision to introduce them into the Parisian transport network. The SeaBubble is still in its early testing period, using technological know-how from several industries. The boat sits in the water as the passengers get on and off but once the door is closed the boat starts moving at 12 kmh (7.5 mph) along the surface. It is 100% electric.

The foils(箔) they use are not new technology. They date back to 1898 and an Italian engineer called Enrico Forlanini. The Germans tested foil boats in the 1940s, the first hydrofoil ferry(水翼渡船) was used between Switzerland and Italy in the 1950s and by 1965, a hydrofoil boat was good enough for the James Bond baddie in Thunderball. What has changed, however, is the technology, which has improved to the point where it can now succeed in dealing with some of the shortcomings which prevented their widespread use.

The company has big goals; it wants to use the world’s waterways—and not roads—to transport people from A to B, and it wants to do so with “zero wave, zero emission(排放), zero noise.” The SeaBubbles would travel at the same speed as cars and the goal is to provide these at the same cost as a taxi, with customers ordering them through an app as they would an Uber.

Anders Bringdal, SeaBubbles CEO, told Associated Press that he hopes to change the way people move about cities. SeaBubbles are one more example of how shared public transport can change the mobility of large cities, much like shared bikes are now doing. People are increasingly looking to rivers as a means of moving around large cities to compete with the subway or buses—in London, travel cards are now accepted on river boats.

I’m so glad to read about the changes talking place in your city. It’s really good news that you can travel by subway in Xi’an, though there’s only one line there. Here in London we have twelve lines. By the way, we don’t use the word “subway” here. It’s American English. We call it “the Underground”, instead.

The London Underground is very famous. It’s famous for several reasons. First of all, part of the underground railway today is the oldest in the world, which opened in 1863. Secondly, the London Underground is also the first line to have electric trains, in 1890. Thirdly but not the last, the London Underground is the second largest metro system in the world, after the Shanghai Metro. There are 270 stations in the Underground and it has 402 kilometres of tracks (轨道). What’s more, the city of London itself helps make the transportation system famous! I’ve got a few photos to help you build a clear picture of the Underground in my city. They are together with this mail.

In your email, you also said workers were building more lines. I’m sure your city is developing fast. Maybe you can send me a few photos of your city today. I really want to see the changes taking place there. I’m happy for you to live there in an ancient city with such a new look!

So much for now. I’ll write soon again. Best wishes!

8 . There is a special kind of hotel in Quebec, Canada. It has a bar, a church, a shop and a small theater. These things are not unusual. But this hotel is only open from January till March every year. Why? Because it is made of ice and snow! When the weather gets warm, the hotel melts (融化) and closes. Every winter, the hotel owners build the hotel again.

Everything in the Ice Hotel is made of ice and snow. All the furniture, such as the tables and chairs, is made of ice. Even the beds are made of ice! So people use special sleeping bags on the ice beds. Inside the ice hotel, the temperature is about 27°F (-3°C)

When people sleep, the sleeping bags keep them warm. In the morning, they can have a hot breakfast. After breakfast, people can enjoy winter activities. They can go skiing or ice fishing. Or they can go skating in the dining room. At the end of the day, people can relax at the bar. They can have drinks in glasses made of ice.

Many people enjoy the Ice Hotel every year. But they can only enjoy it for a short time before it melts again.

10 . Industrial agriculture is often held up as the solution to feeding the world’s growing population. But small farms of about 25 acres or less produce over 70 percent of the world’s food. To raise awareness of the contribution of these farmers, a global photo exhibition, We Feed the World, is to open on October 12 in London.

“Industrial agriculture, which mainly focuses on a few types of crops, is not the only answer,” says art director Francesca Price. “We want these images to empower people to support their local food system.”

By growing traditional and non-commercial varieties, small farms support biodiversity and increase food security. With only 12 plants and five animal species making up 75 percent of what the world eats, food systems will be easily hurt by natural disasters and disease outbreaks. However, traditional farming communities are working to preserve their ancient seed diversity.

Keeping variety alive is very important in the face of climate change. In the future, researchers might need to get particular genes from one variety to help another to adapt to warmer, stormier, or drier weather, or to save a prized variety from disease.

Contrary to the false impression held by the public, small farms that practise traditional agriculture can be highly productive. Studies show that the output of crops rises when there’s a wider diversity of crops being grown on a farm, and money is saved since the need for harmful fertilizer and other chemicals is reduced.

“The photographs of family farmers may tell just a few local stories, but the message is universal,” says photographer Cheryl Newman. “I hope that the images will leave viewers thinking deeply about where their food comes from and the impact it has on the world around us.”