Why Is Gas So Expensive?

Gas is expensive. Ten years ago it was between $1 and $2 a gallon – now it's double that. What has changed? Why is gas so expensive compared to what it used to be? Are more people using it? Is there less of it to go around? Or, are we being manipulated by big oil...

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How Does a Solar Panel Work?

Most people aren't aware of how long the technology behind solar panels has actually been around. Way back in 1839, French physicist Edmund Bequerel discovered the photoelectric effect that is the basis of the modern solar panel. However, the first real use of the...

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