@[email protected]M to [email protected]English • 1 year agoSmart contact lens battery charged by human tearsinterestingengineering.comexternal-linkmessage-square10fedilinkarrow-up163arrow-down10
arrow-up163arrow-down1external-linkSmart contact lens battery charged by human tearsinterestingengineering.com@[email protected]M to [email protected]English • 1 year agomessage-square10fedilink
Well, there is enough to cry over…