How strong the bricks usually are.B. What scientists use to make stronger bricks.C. How much it costs to make a brick.D. Which brick is good for building houses.( A )4. What can we learn from the last paragraph?A. Some astronauts could make the new bricks on Mars.B. Scientists ...
Astronauts are usually well-educated, earn more money and are in better physical condition than the average American. Some earlier research has linked being an astronaut to a lower risk of early death, the researchers noted. The findings were reported in the publication Occupational & Environmental...
How astronauts spend their days within a spacecraft or the International Space Station (ISS) is always a topic of curiosity.Astronaut Naoko Yamazaki explained that on the ISS, the day starts at6 in the morning according to Greenwich Mean Time, and NAS A sends“wake-up music" every morning....
For example,you need to be strong like sports players.You will also wear a 200-kilogram uniform and do missions underwater for six or seven hours without eating or going to the WC.It is useful for these astronauts to face the space. ...
Astronauts need special training. First they go to Houston.Texas.the home of the Johnson Space Center. There they 1 to see how strong and smart they are.One of the first tests is for the heart. The people walk or run. Next the space doctors see how fast
And when astronauts are_15_, they use a vacuum(真空的)hose to suck the dirty water off their bodies. And they use a special "air toilet".It uses air, not water, to take everything away.()1.A. fromB. withC.asD.on()2.A.useB. usefulC.usedD. uses()3. A. to getB.getC. ...
Get ready future astronauts because today we're talking Mars. How did it form? What's the weather like? What is the planet's surface composed of? And perhaps most importantly, did Martian soil ever have water or support life? Contents Ancient Mars The Martian Surface The Interior of ...
Hilary Brueck
dangerous for astronauts because they will be too weak to work.During the lecture,Zhai Zhigang introduced a special uniform.This keeps their muscles strong.Wang Yaping also showed us how she walked on a machine and rode a bicycle.Astronauts exercise with these tools every d...
Below, the Earth's features are obscured by a thick layer of cloud. Above, the blue sky has faded to dark black. It's a beautiful sight, one only seen by a handful of astronauts and test pilots. For the balloon, these breathtaking views will be its last moments. As the weather ...