- #1
Nogueira
- 11
- 0
Hi,
I have lots of questions, they occurred to me last year during the physic/chemistry class and I asked the teacher and she couldn't answer. First: Is the universe tridemensional?? Second: If yes, which is what I believe so, Why do we see stars and planets and galaxies always in a straight line??(with this question I pretend to know if there is any planet or star or galaxie below or over the earth, instead of beeing everything in a straight line). Third: The energy which was "released" when big bang occurred it's not reciclable, but when a star dies, for example, doesn't it recicle the energy present in the universe or does it just exepel heavy metals to the universe not recicling matter?? Fourth: I know this is more a chemistry question, but what is the compostion of fire (i don't konw if someone has already discovered it)? Fifth: I don't uderstand the Time question, I mean, for example why do people say that if you're traveling at light speed the time passes by faster for other people than to you? (concrete example, I enter in a train traveling at light speed, I look at the clock and it's 10:00am, when i get out, i look at the clock and it shows 10:20am, but outside the train many years have passed, is this really true??), so, simply how can we define time??
Sorry for my english, its probably a bit confusing.
When you leave an answer to a question, please identify wich, Thank you.
Nogueira
I have lots of questions, they occurred to me last year during the physic/chemistry class and I asked the teacher and she couldn't answer. First: Is the universe tridemensional?? Second: If yes, which is what I believe so, Why do we see stars and planets and galaxies always in a straight line??(with this question I pretend to know if there is any planet or star or galaxie below or over the earth, instead of beeing everything in a straight line). Third: The energy which was "released" when big bang occurred it's not reciclable, but when a star dies, for example, doesn't it recicle the energy present in the universe or does it just exepel heavy metals to the universe not recicling matter?? Fourth: I know this is more a chemistry question, but what is the compostion of fire (i don't konw if someone has already discovered it)? Fifth: I don't uderstand the Time question, I mean, for example why do people say that if you're traveling at light speed the time passes by faster for other people than to you? (concrete example, I enter in a train traveling at light speed, I look at the clock and it's 10:00am, when i get out, i look at the clock and it shows 10:20am, but outside the train many years have passed, is this really true??), so, simply how can we define time??
Sorry for my english, its probably a bit confusing.
When you leave an answer to a question, please identify wich, Thank you.
Nogueira