PrimeWire

You can now watch the entire American Experience Season 35 Episode 4 movie online in high-definition quality, complete with English subtitles for a better viewing experience. Best of all, there’s no need to download anything—simply stream it directly from your device anytime, anywhere.

For nearly 50 years, biophysicist and inventor Mária Telkes applied her prodigious intellect to harnessing the sun's power. She designed and built the first successfully solar-powered house in 1949 but was perplexed by the knotty scientific challenge of developing a reliable and economical way to store captured solar energy.