http://www.npr.org/2015/12/02/458127706/planet-money-ad-versus-dc-power-grid
How the power gets into our homes
Electrical engineer – what made the Fund – the woman
interviewed an expert on power
Ac to DC
Which sounds like a siren?
Edison DC
Tesla AC
What was better about AC?
What would happen if you wired AC power to DC?
What is the problem with converting AC to DC?
Energy lost to heat
How much electricity is wasted? 1/5
Amount we used 80% AC to 20% DC
flipped now
safer
Ow! To Hmmm
