Case 1.
1. Let us say an arc is to strike between point A and point B in air.
2. There is weak or powerful magnetic field between A & B perpendicular to the line A-B,
3. How will it affect arc voltage & current (after arc is established) , threshold voltage,arc current (befo
A simple question:Can I use ordinary incandescent bulb rated 230V AC,60w in 220V DC?Is there any problem?These bulbs are actully used in the emergency lighting fed from DC charger.There are hardly available DC bulbs in the market.Pls have your opinions/experiences here...........thank you.
Does anyone remember when the ISO metric standard was introduced and what the smallest sizes were before? I work on a lot of pre 1980's camera equipment and my unsorted tiny screw pile is getting too big. I want to sort them but the diameters are all over the place.
Thanks
Is it possible for lightning strike to only damage the inverter drive and transformer (for incoming supply) in the control panel for a lift/elevator system at the top floor of high rise building? The rest of the electrical components in the lift system are not affected.
This week, we're looking at the ever-increasing digitization of memory, and indeed, today's technologies can even access memories stored on the most closely-guarded of hard drives: our brains. In a recent study, MRIs accurately predicted what individuals were remembering. More »
I am looking for cable sizing calculation and name of vendor for under ground cable which can serve in area having condition as:
1. Voltage grade: 10 kV
2. Ambient temp: (-) 28 deg C to +46 deg C
3. Frosting/Icing during winter: up to 500 mm below grade.
4. Length of cable: up to
I'm really needing help. I have a 1986 Ford Ranger pickup with 2.9 V-6
The engine died while driving and now the fuel pumps won't run.
I have checked the circuits and from the relays (there are 2; 1 electric and 1 vacuum operated) to the pumps everything is as it should be.
The
Sometimes something as simple as a pile of metal frames and cushions can be so inexplicably appealing that we can't stop thinking about it. This curved frame sofa was one of those things and we even graphed out our thoughts: More »
Yesterday I forgot four passwords, two book titles, and one pair of pants despite sticky notes reminding me of each. Since then, I've read HowStuffWorks' suggestions on improving memory. I forgot if they worked, but let's review 'em anyway. More »
Hi CR4rers and others
I have been following this thread
http://cr4.globalspec.com/thread/49244?frmtrk=cr4sd#newcomments
on container concepts for helping the people of Haiti and have come up with an approach which would not be on topic.I decided to mak
From the Plum Line:
“Give them credit for being true to their convictions,” Pelosi said. “They don’t believe in health care for all Americans with any public role in it. That’s by and large what the Republican Party believes.”
Pelosi speaking with a roundtable of liberal bloggers yesterday.
k1 is 234.5 for 100% IACS conductivity copper, or 225 for aluminum, based on a volume conductivity of 62%.
For other winding materials, a suitable value of k1 (inferred temperature for zero resistance) shall be used.
How to intrepret " inferred temperature for zero resistance"? Thanks a billio
One day, you're going to die. And when you do, you online presence—like your social network profiles, your blog comments, and your web services—will serve as your very first memorial. Here's how it'll play out. More »
What could this be? Did Pac-Man dye himself in chrome? Did the power of my goatee split a rounded mirror in half? If you can make out the logo in the top right corner, you'll have a hint... More »
Agenda and Convention Standing Rules 2010
*Required by Bylaws
*1. Credential and Seat Delegates of Affiliated Counties
*2. Credential and Seat Delegates from Unaffiliated Counties
*3. Reading and Approval of Minutes of the last Annual Business Meeting
John Schick, Secretary
*4. Adopt Agenda and Standing Rules for Annual Business Meeting
*5. Financial Report
Dale Wedel, Treasurer
6. Presentation of Charters to Latest Affiliated Counties
7. Executive Director’s Report
Chris Spangle, Executive Director
8. “State of the State” Address
Sam Goldstein, Chair
9. Nomination of candidates for the Barbara Bourland Light of Liberty Award
*10. Nomination of Candidates for November General Election
We've become acquainted with Windows Phone 7 handsets from Asus and LG, but during this morning's demo, we saw a new one from Samsung. So, what do we know about this—or any—of the handsets we've seen so far? More »
MAJOR VICTORY FOR LIBERTARIANS!!
Thanks to the efforts of the hardright conservative majority on the Texas Board of Education, two Libertarian Giants in Economics will now be studied in State High Schools.
From the NY Times, Justin Wolfers (Freakonomics), "Hayek propped up by Government Intervention", March 15:
How do they plan to rewrite high school economics?
In economics, the revisions add Milton Friedman and Friedrich von Hayek, two champions of free-market economic theory, to the usual list of economists to be studied – economists like Adam Smith, Karl Marx and John Maynard Keynes
Wolfers goes on to heartily approve of Friedman's inclusion, but not necessarily of Hayek. He believes him to be too obscure, based on relatively low amount of Google searches he receives in relation to other better known economists:
Sure, Hayek was an insightful economist. But insisting that high schools teach Hayek is a clear statement of ideology, not of economic science.
Free Market Mojo blogger responds to Wolfers:
Um, what’s the problem? Milton Friedman and Friedrich von Hayek are tremendously influential figures, not just in the field of economics. Can a truly honest study of the past century ignore their contributions to the world? I don’t think so. Mention them and criticize them if you must, but don’t ignore them.
There were other changes of note. Interestingly, the term "capitalism" was replaced in the textbooks by "free enterprise." additionally, early reports from Leftist bloggers had Thomas Jefferson removed from any mention in history books. This is incorrect. Jefferson was removed from only discussions of the enlightenment section not of American history. (Source: Village Voice)
