Why did Heinrich Rudolf Hertz become a scientist?

Hi! I need help figuring out what a scientist and explorer have in common.. And what their differences are. Please help? Fast?

Why might a scientist rerun an experiment if the experment is shown to support a hypothesis.

why is it important to science for scientists to develop a globally recognized system of symbols and elements

I am doing my assignment I need fast answers!! When you mix copper sulphate solution in a test tube with steel wool it become...

And maybe what they went to school for and stuff like that..doctorates, MS's, BS's, PhDs, stuff like that....

when our scientists investigate whether their was life on mars or some other far away planet...they always seem to be looking...

Why are all the great scientists, physicans, mathematicians, philosophers etc men? Everywhere we hear great names like newton...

Kay well, thats not the question I was going to ask. I was going to ask if -- Is there / or do you think ; there are planets...

i was reading an article on it and these scientists have 'found' particles which exceed the speed of light but Einstein's the...

So I'm watching this documentary on it and they're like "there are so many answers unknown. We have much to discover." I don'...