【推荐2】Summer heat can be dangerous, and heat leads to tragedy far too often. According to Kidsandcars Organization, an average of 37 young children per year die of car heat in the US, when they are accidentally left in a hot vehicle.

For Bishop Curry, a fifth grader from McKinney, Texas, one such incident hit close to home. A six-month-old baby from his neighborhood died after hours in a hot car. After hearing about her death, Curry decided that something needed to be done. Young Curry drew up a sketch of a device he called “Oasis.”

The device would be attached to car seats and watch the temperature inside the car. If it reached a certain temperature in the car, and the device sensed a child in the car seat, it would begin to circulate cool air. Curry also designs the device using GPS and Wi-Fi technology, which would alarm the child’s parents and, if there was no response from them, the police.

Curry’s father believes that the invention has potential. “The cool thing about Bishop’s thinking is none of this technology is new,” he said. “We feel like the way he’s thinking and combining all these technologies will get to production faster.” His father even introduced the device to Toyota, where he works as an engineer.

In January, Curry’s father launched a campaign for the invention. They hope to raise money to finalize the patent, build models, and find a manufacturer. They have raised more than twice that—over $46,000.

“I was so proud of him for thinking of a solution,” the father said. “We always just complain about things and rarely offer solutions.”

【推荐3】The world’s biggest COVID9-9 vaccine (疫苗) study started on Monday. A total of 30,00 volunteers will help test the effectiveness and safety of a shot developed by the National Institutes of Health and drug maker Moderna.

The volunteers will each receive two doses (剂量) of a shot. They will not know whether they are getting the real vaccine or false version (版本) Scientists will then closely follow the volunteers as they go about their daily activities. They want to see which group experiences a higher rate of infections (感染), especially in areas where the virus still is spreading unchecked.

Volunteers from more than 80 test areas across the country will take part in the study. Moderna said the first vaccines were given Monday morning in Savannah, Georgia. The U.S. government requires its tests of any vaccine that might be used in the country. The aim is not just to test if a vaccine works, but also to check if it is safe.

Through the government-funded COVID-19 Prevention Network, the U.S. plans a new study for vaccine candidates (候选人) each month through autumn. Each will involve30,000 newly chosen volunteers. The hope is that, by using the same rules for each study, scientists will be easily able to compare the vaccines. In August, the U.S. will carry out its final stages of Oxford University’s vaccine candidate. The study of Johnson & Johnson’s vaccine will start in September. Drug maker Pfizer also plans to carry out its own 30,000-person study this summer.

That is a lot of volunteers needed to test possible vaccines. But in recent weeks, more than 150,000 Americans have registered to volunteer for the studies, says Dr. Larry Corey. He is with the Fred Hutchinson Cancer Research Institute in Seattle, Washington. It normally takes years to create a new vaccine from start to finish. But this time, scientists are setting speed records.

【推荐1】Scientists have long had it in their mind to make a robot lizard (蜥蜴). They began with finding out why a lizard can hang on a wall. They noticed the lizard’s toes were unique: they have suckers (吸盘), which enable it to hang on walls. They, therefore, made a robot with suckers on its hands and feet.

The robot could hang on the wall but fell off when climbing. So, they went on researching. 6 years ago, scientists discovered that suckers only were not enough. It is the bristles (刚毛) on each foot that adds friction (摩擦) and static adsorption (静电吸附力) that makes a lizard move on the smooth wall easily without falling down.

Then scientists made great efforts to fix thick bristles to the robot’s hands and feet. However, the effect was not satisfactory. The robot still couldn’t attach itself firmly to the wall.

Scientists got puzzled: how on earth can the lizard climb on an extremely smooth wall or even on a ceiling without dropping off?

An accidental finding inspired them. One day a scientist happened to see a cat attack a lizard and bite off its tail. The lizard broke away from the cat’s teeth and threw itself on a wall to escape, only to fall off heavily on the ground. The scientist wondered: is it the tail that plays an important role in its travelling on the wall? He caught some lizards for an experiment. The result proved his assumption: a tailless lizard has no trouble walking on an ordinary wall but can’t on a smooth one. A further study showed the lizard’s tail can prevent it falling over backward and, what’s more, that the tail acts as an additional leg while one of the lizard’s legs leaves the wall, which is always the case while it is walking on the wall.

Thus, Tailbot, a super tailed robot, is born.

【推荐2】Time, wars and natural disasters have a bad effect on the artistic and cultural objects in the world. More than 1,000 years ago, a fire destroyed the Library of Alexandria in Egypt. In 1755, an earthquake destroyed Ribeira Palace in Lisbon, Portugal, along with artworks inside. In modern times, the Taliban destroyed the huge Bamiyan Buddhas in Afghanistan.

As we all know, museums play an important part in our daily lives. They keep evidence of culture and history and exhibit great works. A major goal of most museums in the world is to make sure that important historical objects do not disappear forever. The Uffizi Gallery in Florence, Italy, holds 1,250 pieces of ancient Greek and Roman sculptures. These objects have inspired artists and historians for many years. So the museum is working to make a complete and permanent record of the artworks so that the generations in the future will enjoy them as well.

The project is an effort of both the museum and the scientists from Indiana University in the United States. The team is using technology to create digital copies of the Uffizi’s ancient sculptures (雕像).

The process is called photogrammetry. At one time, this process was slow and expensive. But not anymore, said Professor Robert Frischer. He said photogrammetry is now much faster and cheaper. Now they can gather 3D data on a life-size sculpture in half an hour and they can process the data just in a couple of hours.

The images allow the viewer to examine the sculpture from all sides. And when the viewer zooms in (放大), the image becomes clearer. The Uffizi hopes to have the collection completed and available on the Internet by 2022.

【推荐2】Do you know that forests cover an estimated 38 percent of the total land surface of the European Union (EU)? And that these extensive areas covered with trees and underbrush need to be protected so they can continue to do good for the environment for the next generation? Now the EU has just come up with is ambitious new “Forest Strategy”.

Forests can fight against climate change and prevent biodiversity loss They can reduce the impacts of climate change by cooling down cities, protecting us from heavy flooding, and reducing drought impacts. They are valuable ecosystems that are home to a major part of the world’s plants and animals. But forests also improve our health and well-being through functions like water regulation, erosion (侵蚀) control and air purification. And they serve as ideal settings for “recreation, relaxation and learning, as well as securing livelihoods”.

This new European- wide forest conservation vision takes in an impressive commitment to plant a minimum of three billion additional trees over the next decade. This is an ambitious plan but a long overdue one because forests have been battered by severe weather and human impacts, particularly the demand for wood over the last ten years. As the EU Observer puts it,“extreme weather events and the increasing demand for forest services and products, driven by wood-based bioenergy and international trade, have accelerated tree cover loss in the last decade.”

This EU strategy takes into account the complexity of ; forest sustainability. Observation, knowledge exchange, ongoing monitoring and close cooperation between public and private organizations and individuals are also key elements in this new continent- wide forest protection strategy.

This is a future- focused blueprint, designed to protect these precious green areas, and ensure that the trees and greenery are here to stay!

【推荐3】It’s believed that Canada is one of the most wonderful choices for travelers. Travel in Canada has become exciting as a number of lakes including “Great Lakes” in Canada make it attractive. In fact, Canada has more lakes than any other country which contains fresh water. In addition to lakes, Canada has a number of beaches as it has a long coastline on its north, east, and west. Travelers from around the world come in large numbers to enjoy sunbath at various beaches.

Niagara Falls lie on the border of Canada and the US. It is now popular for its beauty and is a valuable source of hydroelectric power. Niagara Falls are most attractive during summer season when weather condition is charming and attractive. Any Canadian will recommend that to you. At the Canadian side, floodlights light up both sides of the fall for several hours after dark and the whole scene becomes magnificent.

When traveling to Canada, travelers can enjoy doing shopping at Toronto which is considered a leading city. It symbolizes American culture and the spirit of independence. Migrants form European, Latin American, Asian and Caribbean races inhabit the place and make it a multi-cultural society. Ottawa, on the other hand, is the capital of Canada and center of political activities.

Vancouver is an enlightening city in Canada which was named after British Captain George Vancouver, who explored the area in the 1790s. The city is a leading industrial place in Canada. Another tourist attraction in Canada is the capital city of British Columbia, Victoria. The city is located on the southern tip of Vancouver Island.

Travel in Canada is being made easy as transportation facilities are of higher standard. Besides, very few people know that Canada is a high-paying country in terms of wages per hour. In addition to a popular tourist destination, Canada is an economic powerhouse of North America, particularly in agriculture products. Canada dairy industry exports milk products around the world.