Note that different people have different research approaches. The two old ladies check that none of them can see herself and the problem is solved! ;-)
The other older lady makes an experiment with motion and rigorously determines that she is ... well ... unsichtbar. :-)
Why Solar Is Much More Costly Than Wind or Hydro - A new report from the E.U. estimates the true economic cost of different forms of energy production. It’s no surprise that if environmental costs are con...
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