if you want to test if their is oxygen in a test tube than put an empty test tube on the stove and then if their is fog around the sides than yes if there is no fog then no
Umm, I'm not sure there is a way to. I know that on MySpace you can tell when the message has been read but I really don't think there is a way to tell if someone has read an e-mail.
I'm sure...
What you can do is buy a battery tester it looks alittle like a remote and has 2 cords coming out of it that have handles and metal on the ends you take the battery n put the correct cord on the...