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Comment Re:Apps (Score 1) 1880

Agreed, this is my reason for having a Windows box and a Linux box at work. I use, on a fairly regular basis, Solidworks and Altium Designer. Both are DiretX/3D heavy, and don't work well under emulation. Most of the software dev work, though, is under Linux. At home, I normally have a Linux box, and a Windows laptop.

Comment Electrification studies with radar (Score 2) 91

There was a rather large field campaign called The Severe Thunderstorm Electrification and Precipitation Study (STEPS) to study electrification done around the year 2000 that involved the use of polarimetric weather radar to observe electrified storms, in conjunction with the New Mexico Tech Lightning Monitoring Array (LMA).

One of the nice things about polarimetric radar is the ability to measure the aggregate orientation of particles, including ice crystals. When scanning active electrified storms, the radars observed polarimetric signatures indicating increased vertical orientation of particles aloft (ice crystals), which then suddenly snapped back to roughly random orientation. This event corresponded well with measurements from the LMA. In other words, they could, using radar, predict lightning strikes. I love science!

Submission + - Man with quadriplegia controls robot arm with mind (post-gazette.com)

awtbfb writes: Tim Hemmes, with the help of University of Pittsburgh researchers, successfully controlled a robot arm in three dimensions. He's had quadriplegia for seven years. The feat was accomplished using implanted ECoG electrodes and weeks of computer training. From the Pittsburgh Post-Gazette, "Ever since his accident, Mr. Hemmes said, he's had the goal of hugging his daughter Jaylei." Next up are six more 30-day participants, followed by a year-long study.
Privacy

Submission + - Illegal to take a photo in a shopping centre? (bbc.co.uk) 3

Kyrall writes: A man was questioned by security guards and then police after taking a photo of his own child in a shopping centre.

The centre apparently has a 'no photography' policy "to protect the privacy of staff and shoppers and to have a legitimate opportunity to challenge suspicious behaviour"

He was told by a security guard that taking a photo was illegal. He also said that a police officer claimed "he was within in his rights to confiscate the mobile phone on which the photos were taken".

Submission + - ADHD and Diet - Help For ADHD: ADDucation (adducation.com.au)

An anonymous reader writes: ADHD and Diet have an important relationship with each other. Although there are a wide range of diets out there discussing the benefits of diet for ADHD, where do you begin?

Submission + - Antiseptic dressing without antibiotics (thehindu.com)

tuxicle writes: The VitaVallis antimicrobial dressings apparently work without the use of traditional antibiotics. The article linked claims that they work based on the electrical charges present on cell walls of pathogens.
Education

Submission + - High School Kills Color-Coded ID Program

theodp writes: Anaheim Union High School District has killed a controversial incentive program that assigned students color-coded ID cards and planners based on state test scores, required those who performed poorly to stand in a separate lunch line and awarded the others with discounts. The program was designed to urge students to raise scores on the California Standards Tests, but it also raised concern among parents and students who said it illegally revealed test scores and embarrassed those who didn't do well.

Comment Re:Why is there still microwave oven interference? (Score 1) 124

Perfect anything is impossible to achieve when dealing with microwave devices, in my opinion. Particularly shielding - you can reduce it down to a point, and it gets expensive the lower you go. For instance, "quiet chambers" used when testing for EMI compliance typically have doors with beryllium-copper fingers that try to create a faraday shield to keep out external interference. I've never seen any commercial microwave oven that uses these - for good reason too, since they're expensive and won't last very long in a kitchen environment.

Most microwaves would try to ensure that the gap between the metal door and the body is small enough that the waveguide thus formed would have significant attenuation at 2.45 GHz. Any waveguide has a "cutoff" frequency, below which propagation can only occur through evanescent waves, which decay very rapidly. However, the relative power levels involved (microwaves generate 1 kW, or about 60 dBm, while WiFi receivers are sensitive down to about -90 dBm, or 1 picowatt) means that evanescent waves that escape can cause interference.

Comment Re:And still after four years... (Score 1) 92

A winmodem is basically a sound card with an analog telephone line interface. This means all the modulation and channel coding that needs to be done to send/receive data is done in software. Real modems use a DSP to implement the modulation, and have the firmware for the DSP in a Flash chip. The only cost-cutting involved would be to do away with the Flash chip and have the device driver download the firmware each time the modem is power-cycled. Nobody did this with any modems I'm aware of, partly because being external from the PC case, it's hard to say if the modem DSP has already booted and is running firmware or not. With an expansion card, this is not an issue. Back in '98, I was able to update the firmware on a Zyxel 28.8k modem and have it support 56k, since it used a programmable DSP and allowed Flash reprogramming. Greedy marketers would usually prevent this from happening so I'd spend more $$$ to buy the 56k modem - somehow Zyxel were different at the time.

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