2.What would happen if the earth there is another view similar to humans? If our planet was inhabited by another, and technologically savvy kind of creatures, like humans, it would take place between us, a constant struggle for power. If, after hundreds of thousands of years of struggle, no one would have won, we would have started to adapt to each other or would ignore each other. 3. What would happen if a giant asteroid killed the dinosaurs? If an asteroid fell to earth, the dinosaurs, in all probability, would still be ruled by the planet. In the end, the predominance of the dinosaurs on Earth - is out of the ordinary event. Researchers have suggested that instead of people there would be "dinozavroidy", which would possess a relatively large brain, which started to develop in the latter appeared on Earth dinosaurs. 4. What would happen if everyone on Earth jumped at the same time? If all people would gather together and jumped at the same time, it would make the earth move at one-hundredth of the radius to the side, but on landing, the Earth would be returned back. 5. What would happen if the Moon had never formed? Huge tides generated by the Moon, whose orbit was much closer to Earth during its formation, washed, "chemical" building blocks involved in the origin of life. Without it there would be no life or living beings have developed a very different behaviors to cope with the six-hour day and extreme climatic changes that would exist in the moonless earth. 6. What would happen if people were twice as intelligent? In this case, according to experts, we would be more developed at the individual level, would be healthier, look better and be less religious. But nevertheless, still be distinguished from each other, and society would be as contentious as it is today. 7. What would happen if all the cats in the world suddenly died? Cats may seem ordinary, meaningless animal, but they are vitally important members of the global ecosystem. Through research, which studied the effects of withdrawal from the territories of cat small islands, we know that without them the Earth would have been promptly captured rodents. Mice and rats, probably would have destroyed all stocks of grain, spread to a large number of illnesses and destroyed a ground-nesting birds. 8. What would happen if our solar system was formed to be closer to the edge of the Milky Way? Although on the edge of the galaxy there are only about a third of all metallic elements, as compared to the place where we are, life could arise in many ways to develop the same manner. However, gas giants like Jupiter and Saturn, could not exist, and the absence of such planets could mean doom for the Earth, because in this case, it is all too often subjected to impact the asteroid. 9. What would happen if the first animals emerged from oceans onto land, would possess six legs instead of four? four limbs dominate in the higher animals, and it goes back to the time when the fins had evolved as the landfall. But the animals could have fins and six, in this case, as scientists believe, life would be to develop a "very close" to the ground, and large, intelligent animals that may never exist. 10. What would have happened if not for the Neanderthals died out? Neanderthals could survive until the present time, then they may well say, would think and act like us. But experts note that much more likely to assimilate, that is, there would be interbreeding with humans, which led to the creation of hybrid species. 11. What would happen if the magnetic poles reversed? The question is not if it happened, and when it happened, because in the history of the Earth is already happening. This occurs when the iron atoms in the liquid outer core is gradually changing its direction of motion within a few thousand years. 12. What would happen if the forces that shape of the molecule, would be twice as stronger or weaker? molecules are formed when the protons of the neighboring atoms "share" electrons. If the electromagnetic force, which depend on these bonds would have been different, the universe, perhaps, would be deprived of life, and even stars and planets. The attraction between the positively charged protons and negatively charged electrons explicitly configured, allowing the atoms to form into larger biomolecules. 13. What would happen if there was only one type of food? There is no food, which would include everything that a person needs. If there is only one fruit or vegetable, or grain, it will lead to multiple organ failure. Eating only meat will cause your body to start a "chew" their own muscles, if there is only a fruit, then you will develop scurvy. Thus, the monotonous food in any case it is the road to death. 14. What would happen if the sun was two times less in size? Sun would be more red and less hot. The area around it, which would have been suitable for life would be much less at the same time, our Earth is not included in this range would be. 15. What would have happened if you had to shoot weapons in outer space? weapon can fire in space, giving the appearance of the basis of all kinds of absurd scenarios. If you are in a vacuum between the galaxies, then pressing the trigger, the bullet will move in space literally forever. If you shoot, while in the solar system, the bullet will be pulled either to the Sun, or to one of the giant planets. And if you shoot toward the horizon, standing on top of the lunar mountains, then theoretically, you shoot yourself in the back.