<?xml version="1.0" encoding="UTF-8"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/"><channel><title>CR4 - Recent Forum Threads and Blog Entries</title><link>http://cr4.globalspec.com</link><description><![CDATA[Recent content from CR4, The Engineer&apos;s Place for News and Discussion]]></description><copyright>Copyright 2009</copyright><pubDate>Sat, 04 Jul 2009 07:46:00 EST</pubDate><generator>http://cr4.globalspec.com</generator><item><title><![CDATA[Leakage problems with concrete blocks]]></title><link><![CDATA[http://cr4.globalspec.com/thread/40017/Leakage-problems-with-concrete-blocks?from_rss=1]]></link><description><![CDATA[I am in construction industry in Mumbai, India. My question is for construction of external wall of Building Natural bricks are better or Concrete blocks( Hollow or solid). In Mumbai we have seen leakage problems with concrete blocks. is this because the concrete block is not of required quality or]]></description><pubDate>Sat, 04 Jul 2009 01:59:06 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/thread/40017]]></guid><dc:creator>sandeephirani</dc:creator><dc:subject>Civil Engineering</dc:subject></item><item><title><![CDATA[Ask for Procedure of Ductor Test]]></title><link><![CDATA[http://cr4.globalspec.com/thread/40016/Ask-for-Procedure-of-Ductor-Test?from_rss=1]]></link><description><![CDATA[Does anyone can tell me the procedure of Ductor test?]]></description><pubDate>Sat, 04 Jul 2009 00:24:40 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/thread/40016]]></guid><dc:creator>Guest</dc:creator><dc:subject>Electrical Engineering</dc:subject></item><item><title><![CDATA[Data Transfer]]></title><link><![CDATA[http://cr4.globalspec.com/thread/40015/Data-Transfer?from_rss=1]]></link><description><![CDATA[Several years back (~1989) I worked up some spreadsheets on Windows 95 and stored the data on 1.44 Meg floppy discs and put the discs aside until I might need the programs again.  Well, that time has come and now the only computer I have that has a 1.44 Meg floppy drive is an old laptop with no Inte]]></description><pubDate>Fri, 03 Jul 2009 23:39:37 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/thread/40015]]></guid><dc:creator>Guest</dc:creator><dc:subject>General Discussion</dc:subject></item><item><title><![CDATA[Ray burner]]></title><link><![CDATA[http://cr4.globalspec.com/thread/40014/Ray-burner?from_rss=1]]></link><description><![CDATA[Dear all

  I use Ray burner for kettle.It use F.O oil.Now we had problem the oil latch on to rotation cup too much.Does any one have ideal please send to me to solve this problem]]></description><pubDate>Fri, 03 Jul 2009 23:31:56 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/thread/40014]]></guid><dc:creator>chuyen.dinh</dc:creator><dc:subject>Mechanical Engineering</dc:subject></item><item><title><![CDATA[Ray burner]]></title><link><![CDATA[http://cr4.globalspec.com/thread/40013/Ray-burner?from_rss=1]]></link><description><![CDATA[Dear All

 Im my plant use Ray Burner for F.O oil.But now we had problem the oil stick at rotation cup too much and we saw at chimney don&apos;t have smoke.So now how to solve this problem and how to adjust?]]></description><pubDate>Fri, 03 Jul 2009 23:06:14 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/thread/40013]]></guid><dc:creator>chuyen.dinh</dc:creator><dc:subject>Automotive</dc:subject></item><item><title><![CDATA[Cell phone and gas pumps dangers]]></title><link><![CDATA[http://cr4.globalspec.com/thread/40012/Cell-phone-and-gas-pumps-dangers?from_rss=1]]></link><description><![CDATA[I was ordered to turn off my cell phone at the gas pump the other day.  The attendant claimed a danger of explosion.  My argument that if it is safe to drive a internal combustion engine by the gas pump, it is certainly safe for a puny milliwatts phone.

  Obviously, she didn&apos;t believe me.  I comp]]></description><pubDate>Fri, 03 Jul 2009 21:10:35 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/thread/40012]]></guid><dc:creator>marcot</dc:creator><dc:subject>General Discussion</dc:subject></item><item><title><![CDATA[General Relativity Hawking Radiation]]></title><link><![CDATA[http://cr4.globalspec.com/thread/40010/General-Relativity-Hawking-Radiation?from_rss=1]]></link><description><![CDATA[Some thought experiments and questions. I would much appreciate any comments on whether my analyses below are correct.

 1. I am falling feet first into a black hole. An external observer will never see me fall past the event horizon. However, in my frame of reference I will fall past it in finite]]></description><pubDate>Fri, 03 Jul 2009 20:20:40 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/thread/40010]]></guid><dc:creator>John.G.Cleary</dc:creator><dc:subject>General Discussion</dc:subject></item><item><title><![CDATA[ASME Sec-VIII]]></title><link><![CDATA[http://cr4.globalspec.com/thread/40009/ASME-Sec-VIII?from_rss=1]]></link><description><![CDATA[Dear  Sir

  Can any budy clear my doubt on ASME Sect-VIII  Div-1 AND DIV-II.

  Which devision we have to choose for construction of any pressure vessel.?

  Is there any measure difference bteween two devision ? and what are those. ?]]></description><pubDate>Fri, 03 Jul 2009 19:49:41 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/thread/40009]]></guid><dc:creator>Guest</dc:creator><dc:subject>Mechanical Engineering</dc:subject></item><item><title><![CDATA[Christmas in july]]></title><link><![CDATA[http://cr4.globalspec.com/thread/40008/Christmas-in-july?from_rss=1]]></link><description><![CDATA[Is there a Santa Claus?

  http://www.physlink.com/Fun/IsThereSanta.cfm

  A nice winter scene to go along with the question]]></description><pubDate>Fri, 03 Jul 2009 19:33:46 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/thread/40008]]></guid><dc:creator>Garthh</dc:creator><dc:subject>General Discussion</dc:subject></item><item><title><![CDATA[Three-Phase Transformer Loses One Phase]]></title><link><![CDATA[http://cr4.globalspec.com/thread/40007/Three-Phase-Transformer-Loses-One-Phase?from_rss=1]]></link><description><![CDATA[what happens when a 3 phase transformer losses one phase?how would the voltage ,current,power and other parameters be affected?

  GHANA]]></description><pubDate>Fri, 03 Jul 2009 16:00:35 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/thread/40007]]></guid><dc:creator>eddywunics</dc:creator><dc:subject>Electrical Engineering</dc:subject></item><item><title><![CDATA[The Safe Use of Lifting Hooks ]]></title><link><![CDATA[http://cr4.globalspec.com/thread/40006/The-Safe-Use-of-Lifting-Hooks?from_rss=1]]></link><description><![CDATA[we have recently been asked to use hooks with clasps on steelwork erection which involves wrapping the chain around the steel and hooking back to the chain. in my view this is an unsafe use of this hook as, if the chain comes loose, it may recatch agains the clasp which will only hold temperarily. I]]></description><pubDate>Fri, 03 Jul 2009 15:57:48 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/thread/40006]]></guid><dc:creator>cav</dc:creator><dc:subject>Mechanical Engineering</dc:subject></item><item><title><![CDATA[How to Machine Lead Bars]]></title><link><![CDATA[http://cr4.globalspec.com/thread/40005/How-to-Machine-Lead-Bars?from_rss=1]]></link><description><![CDATA[I have to machine at a lathe, a 15 mm diameter LEAD bars , I have to cut it at desired lenght , and make the front face.

  What are the speed , tools steel , and cutting angle.

  Of course I know that LEAD is poisson , and I can get Saturnism desease.]]></description><pubDate>Fri, 03 Jul 2009 14:01:08 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/thread/40005]]></guid><dc:creator>devitg</dc:creator><dc:subject>Manufacturing</dc:subject></item><item><title><![CDATA[Measuring Compressed Air]]></title><link><![CDATA[http://cr4.globalspec.com/thread/40004/Measuring-Compressed-Air?from_rss=1]]></link><description><![CDATA[i want to mesure 3000 cfm compressed airline from out side contact without connecting online kindly suggest]]></description><pubDate>Fri, 03 Jul 2009 13:55:43 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/thread/40004]]></guid><dc:creator>jagdip shah</dc:creator><dc:subject>Instrumentation</dc:subject></item><item><title><![CDATA[How to Run-In an Intercooled Ford Ranger]]></title><link><![CDATA[http://cr4.globalspec.com/thread/40003/How-to-Run-In-an-Intercooled-Ford-Ranger?from_rss=1]]></link><description><![CDATA[How do I run in my new 2.5L turbo charged intercooled Ford Ranger? The dealer said &quot;nice &amp;amp; slow&quot; but I don&apos;t believe this. Am I wrong?]]></description><pubDate>Fri, 03 Jul 2009 13:24:31 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/thread/40003]]></guid><dc:creator>Guest</dc:creator><dc:subject>Automotive</dc:subject></item><item><title><![CDATA[Copper Water Lines]]></title><link><![CDATA[http://cr4.globalspec.com/thread/40002/Copper-Water-Lines?from_rss=1]]></link><description><![CDATA[Electrolysis once it has done damage to the inside of a copper water line what does it look like]]></description><pubDate>Fri, 03 Jul 2009 13:13:35 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/thread/40002]]></guid><dc:creator>Guest</dc:creator><dc:subject>Chemical &amp; Material Science</dc:subject></item><item><title><![CDATA[ELCB Trip Current]]></title><link><![CDATA[http://cr4.globalspec.com/thread/40001/ELCB-Trip-Current?from_rss=1]]></link><description><![CDATA[I have an ELCB. There is a label on it which says, 30mA 20mS.

  I know that 30mA is the maximum tripping current but what does the 20mS mean? Is it important?]]></description><pubDate>Fri, 03 Jul 2009 13:03:29 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/thread/40001]]></guid><dc:creator>Guest</dc:creator><dc:subject>Electrical Engineering</dc:subject></item><item><title><![CDATA[Thermostats and Engine Temperature]]></title><link><![CDATA[http://cr4.globalspec.com/thread/40000/Thermostats-and-Engine-Temperature?from_rss=1]]></link><description><![CDATA[I live in a hot country. Somebody told me that if I take out the thermostat, my vehicle&apos;s engine would run a lot cooler. Is this true? Would it cause any problems?]]></description><pubDate>Fri, 03 Jul 2009 12:52:42 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/thread/40000]]></guid><dc:creator>Guest</dc:creator><dc:subject>Automotive</dc:subject></item><item><title><![CDATA[Class 150 for Threaded Fittings?]]></title><link><![CDATA[http://cr4.globalspec.com/thread/39999/Class-150-for-Threaded-Fittings?from_rss=1]]></link><description><![CDATA[Is their really class 150 for threaded fittings. I have read on references that mentioning class 2000, 3000, 6000 and 9000 for threaded fittings (elbow, tees, coupling, etc) however, one specification in our client says class 150 for this type of joints specifically for Instrument Air line.. Could s]]></description><pubDate>Fri, 03 Jul 2009 11:50:35 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/thread/39999]]></guid><dc:creator>gabriel.rodel</dc:creator><dc:subject>Mechanical Engineering</dc:subject></item><item><title><![CDATA[Converting Volume into Area]]></title><link><![CDATA[http://cr4.globalspec.com/thread/39998/Converting-Volume-into-Area?from_rss=1]]></link><description><![CDATA[Hi , Im Maria...

  I would like to know if somebody can help me with this.

  Im working with some pollutant calculations, but i have my concentrations in volume units (ppm,ppb,ug/m3) and the software im working with aks me for area units...

  I know i cant change volume units into area unit]]></description><pubDate>Fri, 03 Jul 2009 11:47:01 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/thread/39998]]></guid><dc:creator>pitico151</dc:creator><dc:subject>Education</dc:subject></item><item><title><![CDATA[How to Reduce Motor Load Current with a Capacitor Bank]]></title><link><![CDATA[http://cr4.globalspec.com/thread/39997/How-to-Reduce-Motor-Load-Current-with-a-Capacitor-Bank?from_rss=1]]></link><description><![CDATA[Power Factor correction by capacitor bank installation will reduce the current consumption of a particular motor. I have a motor with the followings specs:

  225kW 300HP 2965rpm

  FLC 358Amp @ 415V 50Hz PF 0.94

  During pump performance test, my motor was running at 420Amps ( short time ) b]]></description><pubDate>Fri, 03 Jul 2009 11:09:30 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/thread/39997]]></guid><dc:creator>Guest</dc:creator><dc:subject>Electrical Engineering</dc:subject></item><item><title><![CDATA[Machine Dimensions]]></title><link><![CDATA[http://cr4.globalspec.com/thread/39996/Machine-Dimensions?from_rss=1]]></link><description><![CDATA[why diameter of the machine is greater than length of the match..]]></description><pubDate>Fri, 03 Jul 2009 11:01:09 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/thread/39996]]></guid><dc:creator>selva123</dc:creator><dc:subject>Electrical Engineering</dc:subject></item><item><title><![CDATA[Who Wins in Credit Crackdown?]]></title><link><![CDATA[http://cr4.globalspec.com/blogentry/9474/Who-Wins-in-Credit-Crackdown?from_rss=1]]></link><description><![CDATA[Thanks to new federal credit card regulations effective July 2010, consumers will avoid retroactive interest rate increases on existing card balances. They&apos;ll also get more time to pay monthly bills and more advance notice of changes in credit card terms, while facing fewer penalty fees and late cha]]></description><pubDate>Sat, 04 Jul 2009 07:46:00 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/blogentry/9474]]></guid><dc:subject>Design &amp; Analysis Software</dc:subject></item><item><title><![CDATA[Wind Power: Real Deal or Hot Air?]]></title><link><![CDATA[http://cr4.globalspec.com/blogentry/9477/Wind-Power-Real-Deal-or-Hot-Air?from_rss=1]]></link><description><![CDATA[While wind energy runs clean and is powered by one of the purest renewable energy resources next to the sun, is it as efficient as &quot;Green minded&quot; HVAC and construction professionals would have us believe? Even when turbines operate at maximum capacity, the most a commercial facility can expect the w]]></description><pubDate>Sat, 04 Jul 2009 07:46:00 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/blogentry/9477]]></guid><dc:subject>HVAC Blog</dc:subject></item><item><title><![CDATA[The Coming &apos;Tweet Bomb&apos;]]></title><link><![CDATA[http://cr4.globalspec.com/blogentry/9473/The-Coming-Tweet-Bomb?from_rss=1]]></link><description><![CDATA[We all know how rumors and false stories can quickly spread over the Internet. Imagine, now, what a single text message, of less than 140 characters, could do if it simultaneously reached 100 million people. Welcome to the era of Twitter, and the potential &quot;tweet bomb&quot; that could mobilize tens of mi]]></description><pubDate>Fri, 03 Jul 2009 07:46:00 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/blogentry/9473]]></guid><dc:subject>Drives Blog</dc:subject></item><item><title><![CDATA[Animal Articles - July 3, 2009]]></title><link><![CDATA[http://cr4.globalspec.com/blogentry/9444/Animal-Articles-July-3-2009?from_rss=1]]></link><description><![CDATA[Happy 4th of July to those of you in the U.S.!  I&apos;m away on vacation, but here are your weekly animal articles:

 Dogs may help detect diabetes.

 Did one giant kill another?  Dinosaurs vs. elephants.

 Lynx may be making a comeback in Colorado.

 What if your dog ate your passport?

 Spiders a]]></description><pubDate>Fri, 03 Jul 2009 00:01:00 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/blogentry/9444]]></guid><dc:creator>SavvyExacta</dc:creator><dc:subject>Animal Science</dc:subject></item><item><title><![CDATA[Do Brain Trainer Games and Software Work?]]></title><link><![CDATA[http://cr4.globalspec.com/blogentry/9479/Do-Brain-Trainer-Games-and-Software-Work?from_rss=1]]></link><description><![CDATA[From Scientific American:

 		  		 		The market for brain-training software continues to grow, but evidence of the programs&apos; ability to boost memory or intelligence in a broadly applicable way (rather than simply making people better at the task they are practicing) remains scarce. New studie]]></description><pubDate>Thu, 02 Jul 2009 10:12:08 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/blogentry/9479]]></guid><dc:subject>Engineering News</dc:subject></item><item><title><![CDATA[Ariane Launches the Biggest Space Satellite]]></title><link><![CDATA[http://cr4.globalspec.com/blogentry/9478/Ariane-Launches-the-Biggest-Space-Satellite?from_rss=1]]></link><description><![CDATA[From Newlaunches.com:

 		  		 		Ariane has recently launched the world&apos;s biggest commercial telecommunication satellite build for TerreStar Networks. The TerreStar-1 platform weighed seven tones at launch at it will provide voice, messaging and data connection to the North American market. T]]></description><pubDate>Thu, 02 Jul 2009 09:29:46 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/blogentry/9478]]></guid><dc:subject>Engineering News</dc:subject></item><item><title><![CDATA[Is Full Disclosure Best?]]></title><link><![CDATA[http://cr4.globalspec.com/blogentry/9472/Is-Full-Disclosure-Best?from_rss=1]]></link><description><![CDATA[Writing on Network World&apos;s Web site, a blogger took note of a recent incident in which the pilot of a transatlantic airliner (flying from Brussels to Newark, NJ) suffered a heart attack and died in flight. The copilot and another backup pilot continued the flight, landing the plane uneventfully in N]]></description><pubDate>Thu, 02 Jul 2009 07:28:00 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/blogentry/9472]]></guid><dc:subject>Sensors &amp; Switches</dc:subject></item><item><title><![CDATA[Are We Adept at Adapting?]]></title><link><![CDATA[http://cr4.globalspec.com/blogentry/9470/Are-We-Adept-at-Adapting?from_rss=1]]></link><description><![CDATA[Updated climate change projections for both the U.S. and UK foresee substantial temperature increases for both nations in the next century. Climate-related changes, including increased air and water temperatures, reduced snow cover, and greater frequency of heavy rainfall, have already been observed]]></description><pubDate>Thu, 02 Jul 2009 07:27:00 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/blogentry/9470]]></guid><dc:subject>Environmental Technology</dc:subject></item><item><title><![CDATA[World’s First LS9 Powered 2010 Camaro SS]]></title><link><![CDATA[http://cr4.globalspec.com/blogentry/9469/World-s-First-LS9-Powered-2010-Camaro-SS?from_rss=1]]></link><description><![CDATA[This is the first shot of the Hennessey&apos;s new baby running, and does it sound mean. Sure, the open headers have something to do with it, but still, damn. I have to wonder how wicked it sounds in person.

 But while I think the idea of dropping the ZR1&apos;s powerplant into a new Camaro is cool&amp;#8]]></description><pubDate>Thu, 02 Jul 2009 00:02:00 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/blogentry/9469]]></guid><dc:creator>CarDomain</dc:creator><dc:subject>CarDomain Blog</dc:subject></item><item><title><![CDATA[Cosmic Balloon Application III: Particle Momentum Decay]]></title><link><![CDATA[http://cr4.globalspec.com/blogentry/9443/Cosmic-Balloon-Application-III-Particle-Momentum-Decay?from_rss=1]]></link><description><![CDATA[We have seen how cosmic redshift can be understood as photons conserving angular momentum by &apos;shedding energy&apos; in terms of frequency as the cosmic balloon expands. Is it reasonable to think that particles simply shed speed in order to also maintain a constant angular momentum? So it seems.]]></description><pubDate>Thu, 02 Jul 2009 00:00:00 EST</pubDate><guid><![CDATA[http://cr4.globalspec.com/blogentry/9443]]></guid><dc:creator>Jorrie</dc:creator><dc:subject>Relativity and Cosmology</dc:subject></item></channel></rss>