Our never-thought to ask question for today is: Why is the earth round? Why not a cube? A cube? No, that's silly. Is it? Why? 今天,我们“从未想过的问题”是:地球为什么是圆的?为什么不是方形的?方形?那太可笑了。是吗?为什么? Because..., becausere
It is the largest accumulation of floating plastic on Earth, and lies in international waters, beyond national jurisdiction. This means, unlike rivers or coastal seas, that no country currently has the responsibility to clean it up. The Ocean Cleanup is the only organization cleaning the GPGP at...
Because, although the street is quiet, your own footsteps would never register with you — just those of a stranger's. So why is it we can't hear the noises we make ourselves? Scientists have long known that we are capable of tuning out our own personal noises, but were previou...
Why Space Exploration is Important for Earth When many people think of space exploration, they may imagine astronauts floating aroun d on the International Space Station(ISS) or wandering aroun d on the Moon. 1Why shoul d we contribute money to space programs when there are problems we still...
天空为什么是蓝色的（Why is the sky blue）"Blue sky, white clouds floating."". I'm sure everyone feels about this beautiful view. So why is the sky blue? Why is the cloud white? For this wonderful physical phenomenon, not everyone can tell the reason. In fact, the beautiful view we ...
We now know the Earth actually is a sphere, a round globe floating in space. So why doesn't it look like that to us? Why does the ground looking out as far as the horizon look flat?"The explanation is that the Earth is very large, and so the amount of curving is very small ...
[#insert2] Ganymede is a differentiated world, like the terrestrial planets. [#insert3] Measurements of its gravity field tell us that the rock and metal sank to form a core about the size of our Moon, with a mantle and crust of ice floating above it. [#insert4] In addition, the ...
ESA astronaut Andreas Mogensen, who recently spent six months orbiting Earth with theHuginn mission, believes that missions like SubSea help them prepare for the many physiological and psychological challenges of space. “SubSea is an essential initiative to understand human resilience in extreme environm...
Why is space junk considered a problem?Many people know that rubbish A. Bccause it burns up after it re-enters the is a big problem on the planet Earth.What many people don't know is that atmosphere.junk has become a problem in outer B. Because it often stops the view of telescope ...
我爱妈妈,因为 she teaches me. 她总是教我东西。 I love my mummy because... 我爱妈妈,因为 she is beautiful. 她特别漂亮。 I love my mummy because... 我爱妈妈,因为 she kisses me better. 她的亲吻总是很舒服。 I love my mum...