What? What for? Why?

How did the universe arise and everything is in it? What is our place in unlimited space? The power of attraction and the black hole - what is common? Why are volcanoes erupted and earthquakes happen? Country and the state - what"s the difference? How different species of animals and plants differ from each other? Why are we people exactly like that? What is science and how does it affect our life? How much energy is in ice cream? Why is water not burning? What was the name of the first firearms? Which of the ancient peoples used knot writing? At least one of these questions was asked by each person. If you are interested in learning a lot about the surrounding reality, then this encyclopedia is suitable. Its pages contain brief and affordable information literally about everything in the world. Here you will find answers to a thousand of your “what?”, “Why?”, “Why?”
for secondary and senior school age