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Comment Re:But how does it sound? (Score 1) 315

That's OK, the first time I heard someone pronounce it with a hard "G", I had no idea what they meant.

Outside of common (mis-)usage, there isn't any doubt about the correct pronunciation, as it is specificied in the 1987 document defining the format. It's "Jif", as in "jiffy".

If someone tells you their name is spelled Qwerty, and it's pronounced "Fred", then it's pronounced "Fred"

Cellphones

Apple Planning Video-Call iPhone 268

An anonymous reader writes "The recently awarded iPhone patent contains hidden claims which indicate Apple is planning to bring video calling and recording features to the iPhone, according to InfoWeek blogger Alex Wolfe. Buried within the 'embodiments' section of patent number 7,479,949 is this: 'In some embodiments, the functions may include telephoning, video conferencing, e-mailing, instant messaging, blogging, digital photographing, digital videoing, web browsing, digital music playing, and/or digital video playing.' Wolfe also cites language indicating Apple is aware that having a rear-facing camera is an impediment towards video calls (and also taking pictures of yourself.): 'In some embodiments, an optical sensor is located on the front of the device so that the user's image may be obtained for videoconferencing while the user views the other video conference participants on the touch screen display.' Screen caps of the patent drawing are also available."
Cellphones

(Useful) Stupid BlackBerry Tricks? 238

Wolfger writes "Continuing the recent (useful) stupid theme: I've recently become a BlackBerry user, and I'm in love with the obvious(?) tricks, such as installing MidpSSH to access my home box remotely. But I'd like to know what more experienced Crackberry addicts can share."
Businesses

Ars Examines Outlandish "Lost To Piracy" Claims and Figures 380

Nom du Keyboard writes "For years the figures of $200 billion and 750,000 jobs lost to intellectual property piracy have been bandied about, usually as a cudgel to demand ever more overbearing copyright laws with the intent of diminishing of both Fair Use and the Public Domain. Now ARS Technica takes a look into origin and validity these figures and finds far less than the proponents of them might wish."

Comment Re:Iron Man's Suit Defies Physics -- Mostly (Score 2, Interesting) 279

Hydrogen peroxide powered rocket packs fly for around 30 seconds, because they have a specific impulse of around 125, meaning that one pound of propellant can make 125 pound-seconds of thrust, meaning that it takes about two pounds of propellant for every second you are in the air. Mass ratios are low for anything strapped to a human, so the exponential nature of the rocket equation can be safely ignored.

A pretty hot (both literally and figuratively) bipropellant rocket could manage about twice the specific impulse, and you could carry somewhat heavier tanks, but two minutes of flight on a rocket pack is probably about the upper limit with conventional propellants.

However, an actual jet pack that used atmospheric oxygen could have an Isp ten times higher, allowing theoretical flights of fifteen minutes or so. Here, it really is a matter of technical development, since jet engines have thrust to weight ratios too low to make it practical. There is movement on this technical front, but it will still take a while.

John Carmack

Comment Re:nvidia shaders (Score 1) 750

That is rediculous. Do you think ATI (who paid $6M for exclusive marketing rights) would tolerate HL2 being delayed for NVIDIA's benefit?

And as for the generic DX9 favoring ATI cards inference. While it is true that the DX9 minimum spec is more aligned with ATI's hardware rather than the higher precision NVIDIA hardware, the source code has exposed a good deal of the custom, ATI-written shader code that is in HL2.

Your understanding was paid for by $6M and in cases like these it was money well spent.

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