Answers to Chemistry Questions

How do tattoos last for so long?

Why do washing powders remove stains but not dyes?

Is the ozone layer compromised by rockets punching their way through it...

Can you keep your pipes clean and clear by applying a magnetic field?

Why should spit shine shoes so successfully?

We know that lots of stuff rains down on us from space - but has anyone ever found evidence of life in the extra-...

What is tryptophan? Does eating turkey really make you sleepy?