What if ? Crazy, Mind-blowing Science facts

These five crazy and shocking "what if" theories are going to blow your mind.

1. What if a giant asteroid hadn't swiped out the dinosaurs?

If that asteroid hadn't struck , the dinosaurs would in all likelihood still rule the Earth. After all, they dominated for 160 million years prior to the Earth - shattering event. Researcher have speculated that intelligent ' dinosauroids' might have evolved in humanity's place, based on the relatively large brain size of late-emerging trodnotid species, which were bird like predators.

2. What if everyone on Earth jumped at once?

If all 7 billion of us crowded close together and jumped, we would make the earth move just one-hundredth of the radius of a single atom per second. When we landed, Earth would move back in place, like a spring.

3. What if there was no gravity?

If the universe had formed with no force of gravity, it would be completely flat and featureless. If it had developed normally up to he present moment, and then gravity suddenly shut off, we'd all go flying into space.

4. What would happen if you fell into a volcano?

Lava's high density and low viscosity means you'd smack onto the surface of a volcano's lava pit rather than sinking in. Because of the tremendous heat, you would burst into flames, and the gases given off my your burning flesh would react with the lava, creating mini eruptions called fountaining.

5. Are we alone in the universe?

Astronomers have been searching the universe for signs of other life as well as habitable planets. Astronomers have created radio telescopes which ick up messages from other planets to detect habitable conditions which might be home to other lifeforms. The scams have revealed a whopping 60 billion

habitable planets in the milky way.