Every person sometimes comes up with unexpected questions about “what would happen if?”. We offer you a selection of 15 answers to such questions from a scientific point of view.
1. What would happen if the Earth was twice as large?
If the diameter of our planet were 16, 000 km, then the mass would increase 8 times, and the force of gravity would become twice as strong. All plants and animals that exist today would die under the weight of their weight, and new species would appear.
2. What would happen if there was another species like man on Earth?
If our planet was inhabited by another, also technologically savvy species of creatures, like people, then between us there would be a constant struggle for power. If after hundreds of thousands of years of struggle no one had won, then we would have begun to adapt to each other, or would have begun to ignore each other.
3. What would have happened if a giant asteroid had not destroyed the dinosaurs?
If the asteroid did not fall to Earth, then dinosaurs, in all likelihood, would still rule our planet. After all, the dominance of dinosaurs on Earth is an extraordinary event. The researchers suggested that instead of humans, there would appear "dinosaurids", which would have a relatively large brain, which began to develop in the last species of dinosaurs to appear on Earth.
4. What would happen if all people on Earth jumped at the same time?
If all people would come together and jump at the same time, it would make the Earth move one hundredth of the radius to the side, but upon landing, the Earth would return back.
5. What would happen if the moon never formed?
The huge tides generated by the Moon, whose orbit was much closer to the Earth during its formation, washed over the "chemical" building blocks involved in the origin of life. Without it, life would not have arisen, or living things would have developed vastly different behaviors in order to cope with the six-hour day and the extreme climatic changes that would exist on a moonless earth.
6. What would happen if people were twice as smart?
In this case, according to experts, we would be more developed at the individual level, we would be healthier, look better and be less religious. But nevertheless, they would still be different from each other, and society would be as conflictual as it is now.
7. What would happen if all cats on Earth suddenly died?
Cats may seem like ordinary, meaningless animals, however, they are vital members of the global ecosystem. Thanks to studies that have studied the consequences of the removal of cats from the territories of small islands, it is known that without them, the Earth would be quickly invaded by rodents. Mice and rats would probably destroy all grain supplies, spread a large number of diseases, and destroy birds that nest on the ground.
8. What would happen if our solar system formed closer to the edge of the Milky Way?
Although only about a third of all metallic elements exist at the edge of the galaxy, compared to where we are, life could arise and develop in much the same way. However, gas titans like Jupiter and Saturn could not exist, and the absence of such planets could mean death for the Earth, because in this case it would be too often exposed to asteroids.
9. What would happen if the first animals to emerge from the ocean onto land had six limbs, not four?
Four limbs are dominant in higher animals, and this goes back to the time when the fins had to evolve as they emerged on land. But animals could have six fins, in which case, as scientists believe, life would develop "very close" to the earth, and large, intelligent animals might never exist.
10. What would have happened if the Neanderthals had not become extinct?
Neanderthals could have survived to the present time, then they might have talked, thought, and acted like us. But experts note that assimilation is much more likely, that is, interbreeding with humans would occur, which would give rise to the creation of hybrid species.
11. What would happen if the magnetic poles were reversed?
The question is not if it would have happened, but when it would have happened, because this has already happened in the history of the Earth. This occurs when the iron atoms in the liquid outer core gradually change their direction of motion over several thousand years.
12. What if the forces that form the molecules were twice as strong or weaker?
Molecules are formed when protons from neighboring atoms "share" electrons. If the electromagnetic force on which these connections depend would have been different, the Universe might have been deprived of life, and even stars and planets. The attraction between positively charged protons and negatively charged electrons is fine-tuned, allowing atoms to form into larger biomolecules.
13. What if there was only one type of food?
There is no food that would contain everything that a person needs. Eating only one fruit or vegetable or grain will result in multiple organ failure. Eating only meat will cause your body to chew on its own muscles, if you only eat fruits, you will develop scurvy. Thus, a monotonous diet is in any case a road to death.
14. What would happen if the sun was half the size?
The sun would be redder and less hot. The area around it, which would be suitable for life, would be much smaller, while our Earth would not be included in this radius.
15. What would happen if you had to shoot weapons in space?
Weapons can be fired in space, which provides the basis for all kinds of absurd scenarios. If you are in a vacuum between galaxies, then pulling the trigger, the bullet in space will literally move forever. If you shoot while in the solar system, the bullet will reach either the sun or one of the giant planets. And if you shoot towards the horizon, standing on top of a lunar mountain, then theoretically, you will shoot yourself in the back.