Right now, there about 1,100 satellites whizzing above our heads performing various functions like observation, communication, and spying. There are roughly another 2,600 doing nothing, as they died or were turned off a long time ago.
How did each of these satellites get up there? And what nations are responsible for sending up the bulk of them?
The answers come in the form of this bewitching visualization of satellite launches from 1957 – the year Russia debuted Sputnik 1 – to the present day. (The animation starts at 2:10; be sure to watch in HD.) Launch sites pop up as yellow circles as the years roll by, sending rockets, represented as individual lines, flying into space with one or more satellites aboard.
Read Full article at CityLab
Sarin, allegedly used by the Syrian regime to kill more than 1,400 people on Aug. 21, is one of the most toxic and rapidly acting nerve agents. Developed in 1938 by Germany as a pesticide, sarin is, in its pure form, a clear, colourless, tasteless liquid that has no odour. Even at low concentrations, sarin can be fatal within one minute and those who survive will have permanent neurological damage.
Text and Image via National Post
“You know, this explains a lot. Because all my life, I’ve had this unaccountable feeling in my bones that something sinister was happening in the universe and that no one would tell me what it was.” Arthur Dent.
Via Crispian Jago
A visualization of women as academic authors over the years, based on the percentage of academic papers published on JSTOR, by the Chronicle of Higher Education.
See the full infograph HERE
Nancy Duarte analyzes Dr. Martin Luther King Jr.’s famous “I Have a Dream” speech using principles from her book, Resonate. Mapping the speech to her “presentation form”, Duarte reveals the magic that makes it memorable.