I used to believe in Sinterklaas and that babies werd born from the anus (this is really stupid if you take in considerartion that I teach biology nowdays -_-).
Speaking of that I can easily come up with some nice replies to these quotes:
- my science teacher said that if someone held a sneeze in their lungs would pop (to this day I still don't know if this is true or not)
This is not true. What is true though, is that your tube of eustachius (the tube that connects your ear to your nose cavity) could get infected. If you hold a sneeze the air will go to places which it can easily acces. If you have a nose infection you could turn up with an ear infection afterwards. If the jerms acces your tube of eustachius they can infect your middle ear.
-That I could see atoms with my naked eye if I looked hard enough.
If you are talking about the weird stuff you see in front of you, moving along your eyes when you are tired I can explain this for you. I always thought it were bacteria on my eyeball. When the subject came up in class, my teacher told me that it were large proteins. So yes, at some level we have some microscopic view.
If you are talking about the hazy moving stuff you see when you are tired, I can tell you that I'm experiencing it at the moment too. It's pretty cool, but according to my information just a good indication for us to get a nice nap :p.