walnutwalrus@lemmy.world to Bicycling@lemmy.worldEnglish · 1 year agoRetractable Sail Could Give Bikes A Boost Of Wind Powernewatlas.comexternal-linkmessage-square5fedilinkarrow-up110cross-posted to: technology@lemmy.worldgeneral@lemmy.world
arrow-up110external-linkRetractable Sail Could Give Bikes A Boost Of Wind Powernewatlas.comwalnutwalrus@lemmy.world to Bicycling@lemmy.worldEnglish · 1 year agomessage-square5fedilinkcross-posted to: technology@lemmy.worldgeneral@lemmy.world
This is from 2019!!!