PlumM to WikipediaEnglish • 10 months agoFresnel lensen.m.wikipedia.orgexternal-linkmessage-square3arrow-up122arrow-down10
arrow-up122arrow-down1external-linkFresnel lensen.m.wikipedia.orgPlumM to WikipediaEnglish • 10 months agomessage-square3
minus-squareHorseChandelierlinkEnglish8•10 months agohere is a better article. With light paths and why the lens works.
here is a better article. With light paths and why the lens works.