helpingthemprotectastronauts 进行空间探索仸务的宇航员 astheywentaboutthebusinessofexploringspace. 这是本系列讲座的最后一♥期♥ Thisisthefinallectureinourseries 这一♥期♥我们将把目光投向未来 andinthislecturewehaveoursightsfirmlyfixedonthefuture ...
摘要: Imagine you're an astronaut and are living in space. What can you do to protect yourself and what do you need to survive? Discover how spacesuits work and how astronauts overcome the many challenges of being in space, including eating and drinking....
How do astronauts go to the bathroom? We take toilet functions for granted here on earth, but astronauts don't have that luxury. Learn everything you didn't know you wanted to know about how to take care of business in zero gravity.
The United States needs Russia to transport astronauts to the space station, and currently pays an average of $70.7 million per seat, according to a NASA spokesman. The retirement of the US space shuttle program in 2011 left Americans without a vehicle for ferrying crew to low-Earth orbit, ...
How Do Astronauts Get Breathable Oxygen In Space (Aboard The ISS)?Yes, Plants Can Grow In Space! A picture showing Mizuna lettuce growing aboard the ISS before being harvested (Image Source: www,nasa.gov) For those who don’t know this already, plants CAN and are actually grown in spac...
) The astronauts would typically place the Velcro on the little feed port flap that is held closed via the pressure in the suit when out in space. Apollo 17 astronaut Harrison Schmitt noted, “Everybody seemed to agree that you needed that [Velcro]…”...
How do astronauts pollinate plants in space farms? In the absence of bees and other pollinators in space, astronauts manually pollinate plants using small brushes or by shaking the plants to distribute pollen. This ensures that flowering plants can produce fruits and seeds. Can space-farmed plants...
When astronauts go up into space, they have to bring a similar environment with them in order to survive -- without it, their bodies would suffer from a complete lack of air and pressure. Space shuttles andspace stationsare filled with the same kind of air found at sea level, and except...
用适当的介词及介词短语完成句子(每题1分)1.-How amazing it is that astronauts are exploring outer space!-It's a challenge, I guess, man against nature.2. Most Americans woul d prefer to keep their problems themselves an d solve their problems themselves.3. Everybody was touche d words aft...
At least two hours each day is spent on exercise. It is necessary to keep the crew healthy. In some ways, living in a space station is like being on a deserted island. A crew of two or three astronauts has to survive far from home for weeks or months. If thei...