Please create an account to participate in the Slashdot moderation system

 



Forgot your password?
typodupeerror
×

Comment Re:Homebrew rebound (Score 1) 131

Urban Legend letter to Miller Brewing Co. Thought this would be appropriate...

at Miller Beer, it was never our intentions to have someone take more than 2.5 minutes to enjoy one of our beers. We pride ourselves in creating fine, smooth, quick drinking beers and leave the making of sissy, slow sipping beers to that Sam guy in Boston. However, it is good to know that you feel our Miller Lite can last as long as 6 minutes. However, may we suggest in the future you try consuming at least two in that time frame.

Security

Submission + - Hacked Syrian Officials Used '12345' As Email Password (msn.com) 1

The_Crisis writes: "A report released about hackers associated with Anonymous having leaked hundreds of emails belonging to aides and advisers of Syrian President Bashar al-Assad showed that several of those individuals used '12345' as their email password.

The documents released included those preparing Assad for an interview with Barbara Walters."

Comment Re:There is no FIRE IN SPACE YOU DUMBA (Score 3, Interesting) 146

So you get a bubble of low density CO2 around the fire, but not any movement

That's correct, except for the parts where it's backwards and/or wrong. The heat given off as the product of combustion should increase the pressure of CO (and/or other products of combustion) (see: Charles' Law) which we are guessing would radiate away in all directions. That pressure increase should cause airflow from the area of higher pressure to the area of lower pressure (see: Wind). So (totally guessing/hypothesizing here) it seems to me that the heat generated as a result of combustion would increase the pressure and cause airflow away from the center of the combustion source which would prevent much if any O2-rich air from circulating, in effect choking itself out.

Comment Re:Edison reaching out from beyond the grave (Score 1) 462

In this case, just where along the line do you convert the AC to DC. ?

FTFA:

Most data centers use power distribution systems in which AC power from the grid is converted into DC power to charge the UPS batteries, and then converted back to AC for the equipment. The loss of power through multiple AC/DC conversions has been cited as an argument for using DC power distribution. ”DC distribution can eliminate at least three conversions,” said Symanski.

It sounds like the flow will be having your 120/208/240/other VAC coming into your data center area to one transformer that will send your VDC power through a UPS to the PDU's and so on down the line. It sounds to me like the main point they are trying to make is the most significant gains in efficiency is by eliminating unnecessary conversions and so eliminating the cause of a lot of lost/wasted energy. Assuming your data center is set up with a fairly reasonable footprint (read: in the same room) then arguments of power loss over distance are pretty much moot. It doesn't sound like they're wanting something as radical as changing the standard of the entire grid, instead focusing on making the most of the juice you're getting from it.

Slashdot Top Deals

If you want to put yourself on the map, publish your own map.

Working...