Email in the 18th century: the optical telegraph | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		Email in the 18th century: the optical telegraph (lowtechmagazine.com)
		2 points by KirinDave on Aug 3, 2019 \| hide \| past \| favorite \| 1 comment

dddddaviddddd on Aug 3, 2019 [–]

Sadly unreadable on mobile.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact