there are about 250 gold contributors.
I think there's quite a few. Its surprising how quickly 25,000 contributions can be achieved ! I got my gold badge ages ago.
contributor, bronze,gold, platinum, double plat & ruby
Not sure about specific numbers - but I guess there'll be quite a few (including me !)
thousands.
many contributors right from Planck to Einstein, Bohr,etc. a proper answer has not been given yet by anyone.
Many, many thousands of people have contributed to our knowledge of chemistry.
over 1 million contributors.
WikiAnswers contributors' ages can range from 10 - about 90 years old. It depends on the user, or what group of users. Many different people are many different ages, though.
It would be very hard to say exactly how many, but there are many of us.
the contributors of the site , like me.
Well, all of the Ruby contributors are pretty well known; after all, they've been on the site long enough to have achieved 500,000 contributions.(See the Related question for the list of Ruby Contributors.)
We get our answers from Contributors like you. You are the ones that ask questions and help by answering and asking questions. Without contributors like you there wouldn't be many answers or questions.