Are you curious about how many countries are there?
Unfortunately the answer to this seemingly simple question is not so simple. It is quite difficult to pinpoint the number of independent countries on Earth because there are so many factors that are involved in determining “independent” status.
View this video to find out more.
If we don’t do something now, this could be the end of these animals.
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People has a tendency to think of physics in terms of how it operates on Earth. But if you really want to see how physics works, you need zero gravity.
Zero-G environments are totally a part of our physical universe, and an overwhelmingly dominating part at that. So let’s see how things are working there.
Many things shape the face of a city: buildings, bridges, parks, sculptures… even benches! That’s right, this simple form of public furniture can also add more emotion to a particular site. Whether you’re grabbing...
See how computer ads looked in the past.