After reading the article, "The 20 big questions in science," I was most interested in the question, about time travel. It interests me because scientist actually have a hypothesis for time travel, when I had always heard that time travel was impossible. Their hypothesis involves them using spaceships and wormholes.
The following are my big 20 questions.
1. Do all people seem the same colors the same way? (Ex: Is my red the same as your blue?)
2. What happens when you die?
3. Is there a limit to how big the universe can get?
4. What was there before the big bang?
5. What is the smallest thing that makes up other things? (Ex: What are protons made of? What are those things made of? Etc.)
6. Why does your voice sound different in a recording?
7. What is the fourth dimension?
8. Why did humans evolve to be the dominant species on the Earth, and not another species, or why not multiple species?
9. How would the Grandfather Paradox affect the world if time travel was possible?
10. Why can nothing go faster than the speed of light?
11. What would happen if electrons didn't repel each other, and we could actually touch things?
12. Is there anything completely random? (Ex: If watched closely enough, and all surrounding conditions are known, then a dice toss could be predicted.)
13. Do animals other than humans have feelings?
14. Is there a maximum limit to how hot something can get?
15. What will happen to something when it reaches 0 kelvin?
16. How much is the Earth worth in the US Dollar, ignoring supply and demand, just counting resources, location, and size?
17. How many protons can an atom have?
18. Could the Banach-Tarski Paradox ever be applied to anything in the real world?
19. At what point during evolution is a species defined as a different species than its predecessors?
20. Is there anything other than matter and energy in the universe?
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