根据第二段的"Whenastronautsgoonspacewalks,theywearspacesuitstokeepthemselvessafe...Tokeeptheastronautsandthespacecraftsafe,theastronautsmustleaveandgobacktothespacecraftthrough a specialdoor.Whenon a spacewalk,astronautsusesafetytetherstostayclosetotheirspacecraft.Tethersarelikeropes,connectthespacewalkerswiththe...
What happens when you are in space? Some interesting things will make you surprised.Thanks to Earth's gravity, we take many things for granted. For example,when we cry, our _ 1_ fall down our face. When we strike a match, the flame always goes up. But these things are different in...
it is called a spacewalk. Astronauts go on spacewalks for many reasons. For example, experiments can be placed on the outside of a spacecraft. This lets scientists learn how being in space affects(影响) different things. By going on spacewalks, astronauts can also fix things instead of bri...
'Stranded' NASA astronauts are finally home – but what can being in space for so long do to your health? An eight-day mission turned into a nine-month space stint for two NASA astronauts who are now finally back home. But why were they away for so ...
Campers enjoy a staff-to-child ratio ranging from 1:4 to 1:7 depending on the age group. Instructors are passionate educators who are experts in their fields and have undergone training and a background check. 21.On which of the following dates can you cancel your registration with a full...
The drops of water are too small to see. They have turned into a gas called water vapour. As the water vapour goes higher in the sky, the air goes cooler. The cooler air causes the water droplets(小滴) to start to stick to things such as bits of dust, ice or se a salt.Clouds ...
Any time an astronaut gets out of a spacecraft while in space, it is called a spacewalk. Astronauts go on spacewalks for many reasons. For example experiments can be placed on the outside of a spacecraft.This lets scientists learn how being in space affects different things. By going on...
740.Albert Einstein, who is perhaps the greatest scientist in modern physics, is often considered one of the smartest men who ever lived. 阿尔伯特·爱因斯坦——这位或许是现代物理学领域最伟大的科学家——被公认是有史以来...
"Know there are lots of resources on campus from academic services to counseling centers to get structured, professional support to lower your workload, improve coping skills, and have a safe space to process anxiety, worry, and stress," MacPhee says. ...
But there are structures much closer to the Starship launchpad at a site that SpaceX calls Starbase. The “strongest effects (from sonic booms) will be localized” there, SpaceX acknowledged in a Julyblog post. A vehicle sits parked outside a home that lies adjacent to SpaceX's rocket ma...