Modern Marvels

How has population changed through history?

We looked today at a great video that showed us how population has grown incredibly over the last 200 years compared to the thousands of years prior.

No doubt, technology -- whether it be the tools of farming or building skyscrapers -- have impacted people and the way we live.

Tonight, I'd like everyone to choose one modern technology or innovation and research when it was invented.

Looking for a good research site? I like Answers.com.