Science Sunday: How telegraphs work Posted Oct 18, 2019 Posted Oct 18, 2019 0 Facebook Twitter WhatsApp SMS Email Print Save This weekend on Science Sunday, we're taking a look at how telegraphs work. Tags Science Facebook Twitter WhatsApp SMS Email Print Save × Post a comment as Emoticons [smile] [beam] [wink] [sad] [cool] [innocent] [rolleyes] [whistling] [lol] [huh] [tongue] [love] [sleeping] [yawn] [unsure] [angry] [blink] [crying] [ohmy] [scared] [sleep] [sneaky] [tongue_smile] [thumbdown] [thumbup] [censored] [happybirthday] [ban] [spam] [offtopic] [batman] [ninja] [pirate] [alien] Comment Text Cancel Post comment × Your comment has been submitted. × Report Cancel Report Abuse ×Reported ×There was a problem reporting this. × Watch this discussion. Stop watching this discussion. Watch this discussion Get an email notification whenever someone contributes to the discussion Notifications from this discussion will be disabled. Cancel Start watching Stop watching (0) comments Welcome to the discussion. Log In Keep it Clean. Please avoid obscene, vulgar, lewd, racist or sexually-oriented language. PLEASE TURN OFF YOUR CAPS LOCK. Don't Threaten. Threats of harming another person will not be tolerated. Be Truthful. Don't knowingly lie about anyone or anything. Be Nice. No racism, sexism or any sort of -ism that is degrading to another person. Be Proactive. Use the 'Report' link on each comment to let us know of abusive posts. Share with Us. We'd love to hear eyewitness accounts, the history behind an article. Post a comment Watch this discussion. Stop watching this discussion.