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Comment: Non-Euclidean Geometry (Score 0) 612

It's even more fascinating than that. There's an entire body of geometry based taking the opposite of the base assumptions of Euclidean geometry (parallel lines DO cross, triangle angles add up to something other than 180 degrees, etc) and can prove all sorts of crazy stuff from there. Sorta makes your head hurt if you get too deep into it: http://en.wikipedia.org/wiki/N...

Comment: DVORAK QWERTY is a myth (Score -1) 557

by Hoffy97 (#40613579) Attached to: Is It Time To End Our Love Affair With the QWERTY Keyboard?
The idea that QWERTY was designed to slow us down, and that DVORAK is significantly better are both surprisingly long standing urban legends. Liebowitz and Margolis wrote the definitive article debunking this (in 1990!) with loads of research. The jamming issues were sorted out before QWERTY became standard, and it actually won out over a number of other layouts over a period of years. Additionally, the studies show DVORAK is better generally came from Dvorak himself. Independent studies (like one done in 1956) show there's no appreciable difference. This is probably the main reason DVORAK hasn't really made much ground, even though it's been around since 1936.

http://www.utdallas.edu/~liebowit/keys1.html (1990)

They wrote a follow up in 1996 showing how this myth keeps propagating, and how authors keep referring to each other, making the myth sound legitimate. Having 25 citations certainly makes it sound like it's true.

http://reason.com/archives/1996/06/01/typing-errors (1996)

My guess is DVORAK users may have some form of "sunk cost" bias, considering they spent the time and energy converting to the new layout. Possibly some affirmation bias on the old studies. Not sure how else you could justify the costs of using a non-standard keyboard with no conclusively proven gains in speed.

Satellite Glitch Rekindles GPS Concerns 101

Posted by samzenpus
from the close-enough dept.
coondoggie writes "News today that the Air Force is investigating signal problems with its latest Global Positioning System satellite is likely to rekindle the flames of a congressional report last month that said the current GPS coverage may not be so ubiquitous in the future. The Air Force stated that routine early orbit checkout procedures determined that the signals from the Lockheed-built GPS IIR-2 (M), which was launched in March, were inconsistent with the performance of other GPS IIR-M satellites. The Air Force said it has identified several parameters in the GPS IIR-20 (M)'s navigation message that can be corrected to bring the satellite into compliance with current GPS Performance Standards."

Any program which runs right is obsolete.