Pinboard (andrewducker) https://pinboard.in/u:andrewducker/public/ recent bookmarks from andrewducker Giant 'sand battery' holds a week's heat for a whole town 2024-03-14T10:00:10+00:00 https://newatlas.com/energy/sand-battery-finland/ andrewduckersand heat battery finland https://pinboard.in/u:andrewducker/b:aadbd86b3312/ Stacking concrete blocks is a surprisingly efficient way to store energy 2018-08-18T22:02:41+00:00 https://qz.com/1355672/stacking-concrete-blocks-is-a-surprisingly-efficient-way-to-store-energy/ andrewduckerenergy battery storage https://pinboard.in/u:andrewducker/b:58f383d6bc11/ It is _very_ nice to see a mobile phone company competing on battery life. 2011-09-26T13:31:39+00:00 http://www.reghardware.com/2011/09/26/huawei_introduces_honour_handset/ andrewduckerpower mobile_phones battery android huawei https://pinboard.in/u:andrewducker/b:1afce30b01e0/