kinther@lemmy.world to Technology@lemmy.worldEnglish · 2 months agoPenn Engineers Discover a New Class of Materials That Passively Harvest Water from Airblog.seas.upenn.eduexternal-linkmessage-square38fedilinkarrow-up1206arrow-down112cross-posted to: hackernews
arrow-up1194arrow-down1external-linkPenn Engineers Discover a New Class of Materials That Passively Harvest Water from Airblog.seas.upenn.edukinther@lemmy.world to Technology@lemmy.worldEnglish · 2 months agomessage-square38fedilinkcross-posted to: hackernews
minus-squareEheran@lemmy.worldlinkfedilinkEnglisharrow-up1arrow-down3·2 months agoPeople were able to (and at some places did) cut down every tree WELL before they had power tools and even saws. Just with axes. The comparison is laughable. No, massive air moving structures can not be cheap. Neither building nor operating them.
People were able to (and at some places did) cut down every tree WELL before they had power tools and even saws. Just with axes. The comparison is laughable.
No, massive air moving structures can not be cheap. Neither building nor operating them.