【推荐1】Historical heritages are human beings’ wisdom. Cultural relics, however, as time goes by, suffer different degrees of erosion (侵蚀). People used to protect cultural relics by hand work combing photographing and rubbing techniques. Although this method can keep the basic information, many important details are still ignored.

3D scanning technology features in fast measurement speed and accurate catching capacity. It’s good at collecting enough and accurate 3D data from different angles, which is beneficial to the restoration of cultural relics when coming into accidental damage. Experts can also virtually restore the heritages through the computer, and finish assistant researches via accurate 3D models.

For cultural relics’ protection, 3D printing contributes to displaying cultural relics. It provides people with more chances to get to know cultural relics and better understand human beings’ history.

Yucheng Museum has dug out a new collection of cultural relics in April 2019. One of the most important issues for archaeologists is data storage. Invited by Quimbaya ArtxTech, ScanTech conducted 3D scanning immediately on these relics by the 3D scanner. This handheld 3D ray scanner carries a big weight in acquiring very accurate 3D data and brings great convenience for further restorations and researches.

To avoid any damage, Yucheng Museum combined with 3D printing technology based on 3D data to reproduce 1:1 3D model of cultural relics for exhibition, which aims to make more people get close to history and pass on these precious cultural heritages.

Time flies and many thousand-year cultural treasures have gradually disappeared from our sight due to technical problems. However, 3D scanning and 3D printing technologies put forward very effective 3D solutions for cultural relic display and protection.

【推荐3】A hybrid electric vehicle (混合动力车) or HEV is a vehicle driven by the combination of petrol engine and electric motor. Terrence has been driving a HEV for five years. He really doesn’t understand why more people aren’t accepting them. “I probably spend about $ 7 a day on petrol,” the taxi driver told news. com. au. In his previous conventional vehicle Terrence said he was spending up to $ 30 a day on petrol, meaning he saves almost $ 6000 every year.

The Toyota spokesman said this was quite a high saving and official tests estimate (估计) an average driver would only save about 33 percent off their current bill. This means a driver paying $ 30 a day on petrol would see their bill drop to about $ 20 using the hybrid. “A taxi driver that drives in built-up areas and spends little time on highways will notice a higher fuel saving,” he said. “Low speeds allow the electric motors to be used more and the petrol engine used less.”

While some people are skeptical about how reliable hybrids are, Terrence said he had never run out of power. His Camry cost about $ 34,000 and so after five years, it’s nearly paid for itself. “For cab drivers, it’s a real advantage because of the cost-effectiveness,” he said. Terrence has no complaints about the car. “I love it, the calm and quietness of it, the simplicity of it—you just jump in and go. The maintenance（保养）is really low. But the only difficulty is finding someone to service the car as there are not many experienced mechanics（机修工）.”

Terrence said it’s “extraordinary” that more drivers aren’t buying more hybrid electric vehicles and that governments are not encouraging this more. “I think people have a view that you have to plug it in, which is not true. A lack of information about the cars may be stopping people from taking the plunge. It’s not promoted at all for the public to understand—it’s simplifying the actual owning of a car—you don’t have to do so many things to own it and run it, it’s just so much simpler. Why wouldn’t the government promote such a thing?”

【推荐1】“What kind of rubbish are you?” This question might normally cause anger, but in Shanghai it has become a special “greeting” among people over the past week. On July 1, the city introduced strict trash-sorting regulations that are required to follow and expected to be used as a model for our country. Residents must divide their waste into four separate categories and throw it into specific public dustbins. They must do so at regulated times, when monitors are present to ensure correct trash-throwing and to ask the nature of one’s rubbish. Individuals who fail to follow the regulations face the possibility of fines and worse. They could be punished with fines (罚款) of up to 200 yuan (＄29). For those who repeat to go against them, the government can add black marks to their credit records, making it harder for them to get bank loans or even buy train tickets.

Shanghai government is responding to an obvious environmental problem. It generates 9 million tons of garbage a year, more than London’s annual output, which is rising quickly. But like other cities in China, it lacks a recycling system. Instead, it has relied on trash pickers to sift (筛选) through the waste, picking out whatever can be reused. This has limits. As people get wealthier, fewer of them want to do such dirty work. The waste, meanwhile, just keeps piling up.

Many residents appear to support the idea of recycling in general but are annoyed by the details. Rubbish must be divided according to whether it is food, recyclable, dry or harmful, the distinctions among which can be confusing, though there are apps to help work it out. Some have complained about the rules concerning food waste. They must put it straight in the required public bins, forcing them to tear open plastic bags and throw it by hand. What they complain most is the short periods for dropping trash, typically a couple of hours, morning and evening. Along with the monitors at the bins, this means that people go at around the same time and can keep an eye on what is being thrown out. No one wants to look bad.

【推荐2】There has been a large increase in the number of natural disasters over the past few years, and it is believed that global warming and climate change could cause even more disasters in the future. Some of the world's leading cities are facing disasters like floods and heat waves.

London

London's flood defences are getting older. Since 1982, the Thames Barrier (泰晤士河屏障) has protected the city from the threat of flooding, but it was only designed to last until 2030 and close once every two or three years. About 32 years later the barrier now closes five or six times a year and according to Environment Agency                           predictions, by 2050 the barrier will be closed on almost every tide if the problem is not solved.

There are 26 underground stations, 400 schools, 16 hospitals, an airport and 80 billion worth of property in London's flood risk area, so large scale flooding would be disastrous.

Paris

Over a six-week period in July and August 2008, more than 11,400 - mainly elderly people - died in France from dehydration (脱水) and extremely high body temperature in a deadly heat wave. Heat waves of similar intensity (强度) are expected every seven years by 2050, so what can be done to make sure such disaster does not happen again?

One solution is to have air conditioners installed (安装) in elderly care homes. But this is considered a short-term solution, as the increase in demand for electricity also increases carbon emission (排放) .

In Paris the local authorities are encouraging architects to design new types of buildings such as the building “Flower Tower”, which uses a covering of bamboo to act as a natural air conditioner.

Shanghai

Shanghai is the fastest growing city on Earth. It has a population of 18 million and is only four meters above sea level. Sea levels are predicted to rise by 20 cm within the next century.

About 250, 000 people move to Shanghai every year in search of work, placing extra demands on energy consumption. China depends heavily on coal-fired power stations, but these emissions increase temperatures and, in turn, warmer seas increase the risk of typhoons.