Recent content by dingpud

What do I look for to determine the efficiency factor to know how many watts I can get out of a generator given a specific known HP sized engine? Example: 12.6 HP gives 9395 Watts from the standard HP to Watts conversion... however on a Markon generator, the spec sheet says that a 12.6 HP...

Antennas by Kraus and Electromagnetics by Kraus were two that I used as supplementary text to my main text of Electromagnetics by Griffiths. I preferred Kraus over Griffiths big time.

I have used a multitude of inverters within the past couple of years. I've experienced the good and the bad. I've found that the higher dollar inverters seem to work better, but don't know why. I used a 2KW Samtec Pure Sine wave inverter to power a 1500 watt load without any issues. I tried...

Does anyone out there know of a US based source or distributor for high capacity lithium batteries? 100Ah, 200Ah? 3 - 3.2 volts Everything I am finding is China, and the shipping is just outrageous. Thanks, pud

How do you suppose the SkyTug and some of these other Lockheed concepts utilize their Helium? http://snafu-solomon.blogspot.com/2011/06/skunk-works-air-ships.html I would figure that in order to lift that much, what would they do after they unload their equipment?? Compress the Helium?

Are you routing the incoming fiber optic line through a fiber optic router or module?

Has anyone use fiber optic interconnects in their computers? I read an article suggesting that this is the way to go to move data really quickly, and it got me interested. My google search's have primarily just resulted in company's trying to sell connectors, etc. etc... Any actual...

Q_Goest and JoBrag, thank you for the responses. Q-Goest, thank you for suggesting an alternate low pressure tank. That makes sense. Will look into that some more. Yeah, the cost alternative is going to be something that can't be ignored...we'll see. Thanks again...

Is there a way to reclaim the Helium that I put into a weather balloon? Meaning, I empty out a cylinder of Helium into a weather balloon, and for some reason I want to get it back into the tank (bad weather, missed launch time, MacGyver is on, etc.) and can't launch my balloon. Is there a way...

Well, I found the original batch file... went into edit it, and it seems as though the only difference were the spaces around the *.* This file works exactly like it use to. dir /s *.* >dirlist.txt Saved as a batch file will allow me to copy and paste the batch file in a folder, double click on...

I will try that when I get a chance... Currently when I run the one that I posted, it just gives me a blank notepad file. It use to create the same file listing.txt which had the directory in the notepad file. I do not get any errors when I run it.

Hello all. I am far from a programmer, but have found a lot of use out of a batch file that I found. The file is as follows: dir /s*.*>dirlist.txt This file, typed into a notepad file, then saved as a .bat file has worked perfectly on my XP system. I tried to use in in W7, and it just...

I don't think the pc would need to be steam or gas driven in order to need to know the amount of BTU's which are required to cool a PC... http://www.eicsolutions.com/

Any of you guys know any applicable equations for determining how many BTU's are required to cool a PC to a certain temperature?

Yep, that helped... Thanks!