Artist Windy Chien spent a year learning a different nautical knot a day. See all (most?) of the knots here.
Essence of linear algebra - "[Grant Sanderson of 3Blue1Brown (now at Khan Academy) animates] the geometric intuitions underlying linear algebra, making the many matrix and vector operations feel less arbitrary." [more inside]
Italy. One 50 metre double line. 16 hammocks. 22 people. And, relax. Some background to the photo shoot.
A long time ago (1999), in a galaxy way, way afar . . . in anticipation of Star Wars Episode I : The Phantom Menace. Lines form outside theatres across the country. Here's a time travel trip through 1999 to visit the lines in Los Angeles, San Jose, San Francisco, Dallas, New York, and San Francisco!
Meanwhile in Portland, in an incident Mashable describe as the acockalypse, dildos are appearing on power lines in increasing numbers. The Metro notes that the items are usually paired red and yellow. Speculation persists on where the items came from e.g. "There was Empire Labs that did Clone-A-Willy but that was awhile ago", while Bustle asks "Who knows this dildo man? Where can I find him???" Speigel reports that Unbekannte hängen Hunderte Dildos an Stromleitungen , while the BBC will not directly use the d-word because British, but will replicate some tweets which use it. Death and Taxes thinks this is biblical in nature, while Austria is concerned that "Rätsel um Dildo-Invasion in US-Stadt". And previously in Portland.
Understanding e to the pi i - "An intuitive explanation as to why e to the pi i equals -1 without a hint of calculus. This is not your usual Taylor series nonsense." (via via; reddit; previously) [more inside]
The dot and the line is a romance in lower mathematics starring a dot and a line. It won the 1965 Academy Award for Animated Short Film.
"You Look Like Shit" The Megacut.
(Late) Friday Flash Fun: Faultline is a clever platformer where you can fold parts of the level to advance.
Can't get enough Whose Line is it Anyway? 71 Scenes From a Hat, 16 Party Quirks, 52 Props, 5 Film Dubs, 84 Hoedowns, 37 Sound Effects, 45 Questions Only, 11 Hats/Dating Service Videos, 52 World's Worst, 13 News Flashes, 35 Let's Make a Date, 9 Press Conferences, 60 Superheroes, 6 Foreign Film Dubs, 29 Irish Drinking Songs, 4 Animals, 9 If You Know What I Mean, 2 Backwards Scene, 54 Greatest Hits, 58 Song Styles, 2 All in One Voice, 21 Scenes to Rap, 3 90-Second Alphabets, 11 Questionable Impressions, 4 Two-Line Vocabulary, 3 Number of Words, 17 Weird Newscasters and (probably the most telling of how much they had to hold back due to censorship standards) 6 Blooper Reels. Prefer the UK version? Every episode of Seasons 1, 2, 3, 4, 5, 6, 7, 8, 9, 10.
Where the South Really Begins [Flash] Forget the Mason-Dixon Line. The South really starts at the Sweet Tea Line. [more inside]
Vatican's lines too long? The Pope has just closed the door to the bronze Holy Door in St. Peter's Basilica for the next 25 years. I have heard of crowd control but give me a break, can the lines really be that bad?