Catch up on stories from the past week (and beyond) at the Slashdot story archive

 



Forgot your password?
typodupeerror
×

Comment Re:Uses blackbody emission (Score 1) 110

Sadly, it requires that large numbers of useful photons be produced from the emitting blackbody source, which means it needs some pretty non-trivial temperatures. This isn't going to be something that is used in normal residential settings.

Could it be an alternative for solar concentration?

But then I have to ask why not just melt salts and store them so you get energy storage as well.

Comment Re:Microsoft account? (Score 1) 292

Except when I click the link it asks me to log into a windows live account.

I just did a bit of testing. Interestingly enough it asks me to login if I go to www.msn.com in Firefox, and in Chrome, but lets me through if go there in IE, just offering the copied from google login status bar across the top of the screen.

Very very interesting.

Comment Re:How the fuck are those screens built? (Score 1) 142

or your electronics is so badly shielded, it's a wonder it's working at all.

You haven't pulled apart many electronics have you? For the vast majority of consumer electronics shielding is either an after thought or poorly implemented borderline turning the system into an antenna to drag noise into the power supply. What is shielded in any system is typically the bare minimum. Transmission lines are shielded. Cables are shielded. In some cases the housings are shielded, in many other cases a tiny shield sits over a powersupply just enough to get that piece of paper that says Part 15 FCC compliance on it. Also my UHF puts out 0.935watt (though I don't believe my measurement equipment's 3rd significant digit), and a cell phone will rarely blast full power unless you're in a low signal area.

All of this is irrelevant though because there's only two things that matter here, one of which you pointed out:
1. There is no requirement to shield consumer electronics from external interference. (hence some screens, and I'm making note here that your screen may legitimately not be susceptible to interference, are affected and other's aren't)
2. There IS a requirement to shield electronics used for aviation. (hence the call to replace the monitors)

Comment Microsoft account? (Score 1) 292

Is this a joke? I now need a Microsoft "Live" account to follow articles linked to by Slashdot?

I mean searching for 35000 walruses on google only provides about 2million hits the top one not being msn's sorry attempt at a failing portal.

Why not link to CNN or any of the other sites running the article. I can't believe I'm going to say this but why not link to someone's blog covering it?

Comment Re:Antecdotes != Evidence (Score 1) 577

I'm inclined to believe it's the type of software being churned that would make a difference. Games are a classic example of things typically done right. A folder on the HDD with most of the stuff. A folder in the user profile to store the saves and settings, and a folder in the registry for the DRM shit. And most of the invasive stuff to the system (DRM, Battle.NET, Origin etc) are shared between games and thus not churned.

Now compare that with say changing antivirus software vendors, and filling up the computer with spyware and crapware from yet another worthless program downloaded from CNET and you may have a very different take on the whole idea.

Comment Re: Here's the solution (Score 2) 577

The problem is that you have to know what you're doing.
The problem is that it's not automated on an application level.

Even those tools which market themselves as cleaners of registry often pick up items which are still needed and delete them or miss things which aren't. The core problem is that for the average user keeping the system clean is not possible on a windows machine and an attempt to clean it often breaks things in strange ways.

Heck just thinking back to DLL hell days "It appears this file is no longer needed do you want to keep or remove?"
The only thing Microsoft missed from it's uninstaller package is "ARE YOU FEELING LUCKY PUNK?"

Comment Re:Almost completely unrelated... (Score 1) 142

It's the switch-mode regulator inside them that provides the constant current which is radiating the RF. This is not unique to LEDs, and probably also not universal across LEDs. Instead it would depend on the design of the individual regulator, chosen switching frequency, and shielding. I have a bench supply which interferes with AM radio when I turn it on and the radio is sitting too close to it. "DC" hasn't really been nice clean "DC" for a long time.

Comment Re:How the fuck are those screens built? (Score 1) 142

I have never ever heard of wifi interfering with an LCD screen. What did they do to them to get them to blank out? Stick them 1 inch in front of a directional 1kW magnetron?

While you may not have heard of it your sarcastic alarmist examples is way off the mark for what can take out any ordinary screen. I have a 1W UHF transmitter on my desk, when I push the PTT button my PC screen goes blank. It doesn't take much to interfere with digital signals, especially if you look at the quality of a typical digital signal these days.

You may not appreciate how on the very edge of not working most electronics actually are, employing all sorts of tricks such as digital signalling, shielding, transmission line impedance matching etc just to make things work at all.

Slashdot Top Deals

"Gravitation cannot be held responsible for people falling in love." -- Albert Einstein

Working...