2010 was another rough year for the economy, as unemployment held steady, the housing market remained weak and the stock market followed a bumpy road. Now you can hear it set to music.
This is the Dow piano, a translation of the Dow Jones industrial average into a five-note scale spanning three octaves. CNN Money built the piano to illustrate the market’s highs and lows during the year that was. Click here to play it.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.