UCLA created a double layer solar cell by spraying a thin layer of perovskite onto a commercially available solar cell. The solar cell that forms the bottom layer of the device is made of a compound of copper, indium, gallium and selenide, or CIGS. The new cell converts 22.4% of the incoming energy from the sun, a record in power conversion efficiency for a perovskite–CIGS tandem solar cell. The performance was confirmed in independent tests at the U.S. Department of Energy’s National Renewable Energy Laboratory. The cell’s CIGS base layer, which is about 2 microns (or two-thousandths of a millimeter)
Screenshot: Warner Bros. Bad news for Max subscribers who’ve made re-watching The Lord of the Rings extended editions an annual New Year tradition: the third film in the trilogy, The Return of the King — which just celebrated its 20th anniversary! —is only available to stream in its theatrical version. No ancient evil is to blame, thankfully; it’s an unspecified “tech issue,” according to a Max spokesperson who responded to a comment request from Vulture after the issue was noted by dismayed fans on Reddit . The fact that The Return of the King extended edition is merely temporarily unavailable is actually good news given Max’s track record for removing content in the past, and the explanation makes sense considering The Fellowship of the Ring and The Two Towers remain available in both their theatrical and extended editions. The Max spokesperson assured Vulture that The Return of the King extended edition will be, ah, returning soon to the service, though as of this writing i...
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