and his head was only just high enough to see out of the windows. the child had taken the keys to the family car while his teenage sister was napping. he then drove three kilometers across town before getting on ...
" the area within an approximately 1,550-mile (2,500 kilometers) radius of the North Pole, according to theTromsø Geophysical Observatoryin Norway. That's where the aurora most frequently occurs, though the phenomenon can creep farther south during particularly strong solar storms....
Luckily, scientists still have to figure out how to impart all the important human values into an AI before it can become a part of our everyday life.幸运的是，在人工智能成为我们日常生活的一部分之前，科学家们仍然需要弄清楚如何将所有重要的人类价值观灌输给人工智能。But the rise of AI will o...
the growing season would be longer with more precipitation. This could be beneficial in many ways for these areas. However, less temperate parts of the world would likely see an increase in temperature and a sharp decrease in precipitation, causing long droughts ...
[02:53.37]Inspiration4 flew at about 590 kilometers above Earth, higher than the ISS. [03:00.62]That means the crew faced higher radiation levels. [03:05.52]The beginning of a "second Space Age" led by private space...
The Loess Plateau is the third largest plateau in China, with an area of about 600,000 squarekilometers and an average altitude of 1000-2000 meters.Most of it is covered with 50-80 meters thickloess and it is the region with the most concentrated loess distribution and the largest coverage...
This central antenna meant that the phone in your car needed a powerful transmitter -- big enough to transmit 40 or 50 miles (about 70 kilometers). It also meant that not many people could use radio telephones -- there just were not enough channels. The genius of the cellular system is...
The full moon of June, also known as the Strawberry Moon, looms above Earth's horizon in this photo taken by an astronaut at the International Space Station. The image was captured on June 17 as the space station was orbiting 254 miles (409 kilometers) above the Pacific Ocean northeast ...
If you want to see a hologram, you don't have to look much farther than your wallet. There are holograms on most driver's licenses, ID cards and credit cards. If you're not old enough to drive or use credit, you can still find holograms around your home. They're part of...
The total length of the Great Wall of China built in different dynasties is 21,196.18 kilometers (13,170.70 miles), announced by China's State Administration of Cultural Relics in 2012. The length of the Great Wall of the Ming Dynasty (1368-1644) is 8,851.8 kilometers (5,500.3 miles),...