Weekly Web Harvest (weekly)
The Speed of Sound – Futility Closet “When the Erie Canal was opened on Oct. 26, 1825, the fact was known in New York City, 425 miles away, within 81 minutes. This was before the advent of radio or telegraph. How was it done? Cannons were placed along the length of the canal and the Hudson River, each within earshot of the last. When the crew of each cannon heard the boom of its upstream neighbor, it fired its own gun. As a result, New Yorkers knew within an hour and half that they had a navigable route to the Great Lakes — the fastest news dispatch, to that date, in world history.” tags: speed sound weekly wcydwt math geography history itrt There She Blows! Reading in a Participatory Culture and Flows of Reading Launch Today “Flows of Reading takes this process to the next level. We have created a rich environment designed to encourage close critical engagement not only with Moby-Dick but a range of other texts, including the children’s picture book, Flotsam; Harry Potter; Hunger Games; and Lord of the Rings. We want to demonstrate that the book’s approach can be applied to many different kinds of texts and may revitalize how we teach a diversity of forms of human expression. We look at many different adaptions and […]
Falcons imprison live birds to keep them fresh for a later meal | New Scientist tags: falcons birds meal biology weekly Your Speech Is Packed With Misunderstood, Unconscious Messages – Facts So Romantic – Nautilus “designers of synthesized voice systems have begun experimenting with the insertion of naturalistic disfluencies into artificial speech.” tags: future human weekly How to Design A Modern Office Space for Optimism “When you look around an office, nine times out of 10 you can tell if it was designed for fear. How does fear manifest in space? High walls. No windows. Closed spaces. By extracting management from the doers and makers of the company, there’s plausible deniability. When conversation is inhibited by high-walled cubicles, information is controlled. And to effectively instill fear in office culture, you have to control information. You have to make sure teams are segmented into departments, information is transmitted linearly and power is centralized.” tags: spaces learning office design weekly Posted from Diigo. The rest of my favorite links are here.
Travel Time/Time Travel One of those essential things history students (and teachers) need to keep coming back to. – via Flowing Data (which is good) via MNN (which I don’t like) who supposedly got the information from the 1932 Atlas of the Historical Geography of the United States which you can find here (although I haven’t found these maps yet). Hedges I never understood quite what was going on with hedges despite the fact that they’ve come up repeatedly in history courses and in literature. I just assumed they were dense rows of bushes. Now I know differently. Such a simple and effective way to build a fence. Din Minimum N0 = the critical number of guests above which each speaker will try overcome the background noise by raising his voice K = the average number of guests in each conversational group a = the average sound absorption coefficient of the room V = the room’s volume h = a properly weighted mean free path of a ray of sound d0 = the conventional minimum distance between speakers Sm = the minimum signal-to-noise ratio for the listeners This equation is supposed to determine “How many guests can attend a cocktail party before it becomes too noisy for conversation?” It would be fun to mess around with equation based answers to […]