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Wind powered vehicle, or perpetual motion machine?

I don't believe its possible to faster than wind speed downwind, however its very easy to go many times the wind speed crosswind. All you need is a sail shaped like a airfoil.
- Skyhanger
- Post #16
- Mar 21, 2011
- Forum: Ask a Technical Professional
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Wind powered vehicle, or perpetual motion machine?

The world land speed record for a wind powered vehicle was broken on 26 March 2009 by Richard Jenkins in his yacht Greenbird with a speed of 126.1 mph (202.9 km/h).[5] Wind speeds were fluctuating between 3050 mph (4880 km/h) at that time.[6][7] From wikipedia.
- Skyhanger
- Post #14
- Mar 21, 2011
- Forum: Ask a Technical Professional
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DIY PC water cooling and Case

Excellent work. Perhaps you can start up a PC cooling supplies company in India. You appear to have the skills to manufacture watercooling components that can be market ready. I assume the best cooling parts have to be imported and thus are expensive. This means less competition locally...
- Skyhanger
- Post #30
- Dec 8, 2010
- Forum: Cases & Cooling
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Artic Freezer 64 vs AMD Heatpipe

I have the AMD heatpipe, and its performance is comparable to the XP-90. I think it will be cheaper to just switch out the fan for a 80mm panaflo, I doubt the Freezer will be that much cooler than the heatpipe, if at all.
- Skyhanger
- Post #2
- May 9, 2006
- Forum: Cases & Cooling
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Is my LCD holding back my Games?

Well, maybe not all LCDs run @ 60 Hz, but make sure your refresh rate is the one specified by the manufacturer
- Skyhanger
- Post #11
- Apr 29, 2006
- Forum: Displays
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Is my LCD holding back my Games?

are you running @ 75Hz? Many LCD panels can't handle that refresh rate properly. Check if you are running at the recommended refresh rate. Besides, its pointless to go above 60Hz for LCD, LCDs dont work like CRTs in having a scan rate, instead they change individual pixels at the refresh rate...
- Skyhanger
- Post #10
- Apr 29, 2006
- Forum: Displays
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EVGA STEP-UP PROGRAM, ANYONE SUCCESSFUL??

Just put in a step-up request and if the card you want is out of stock, they'll put you in queue. When the stuff comes back in stock, they'll notify you and you can send in your old card.
- Skyhanger
- Post #12
- Apr 29, 2006
- Forum: Graphics Cards
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EVGA STEP-UP PROGRAM, ANYONE SUCCESSFUL??

I got a 7800GT w/ a free mobo for $470 when the deal came out. The 7800GTX and mobo would have cost me $570 at the time. After thinking about it, I decided to upgrade the card for $80, thus technically saving me $20. The step-up works fine as intended, expect a 1 day turnaround and 5-day...
- Skyhanger
- Post #10
- Apr 29, 2006
- Forum: Graphics Cards
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Quiet Case

Do water cooling then... Side window != Quiet Those two are almost mutually exclusive
- Skyhanger
- Post #9
- Apr 23, 2006
- Forum: Cases & Cooling
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Quiet Case

Agreed.... the Antec P150 is alot quieter than the P180 The P180 is more emphasized on looks
- Skyhanger
- Post #8
- Apr 23, 2006
- Forum: Cases & Cooling
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Going to swap HSF... never done this before...

It will also dissolve your alumminum heatsink into a slag of corroded metal. You should see photos of it eating its way through a Zalman 7700-AlCu... its pretty cool actually.
- Skyhanger
- Post #23
- Feb 7, 2006
- Forum: Cases & Cooling
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Swiftech MC14 & VF700?

I was looking at the vf700 and I wonder if they ramsinks they provide is good enough? They are made of alumminum and only 6mm tall. The MC14 ramsinks look nice but are 14.5mm tall. The VF700 does seem to have some clearance under their fins, but does anyone actually know of those ramsinks...
- Skyhanger
- Thread
- Feb 6, 2006
- Replies: 0
- Forum: Cases & Cooling
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High GPU Temperatures!

I would prob get the Silencer if not for the fact that I already did my windtunnel mod. I would hate to take out the fan I modded into the PCIe slots.
- Skyhanger
- Post #10
- Feb 4, 2006
- Forum: Cases & Cooling
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High GPU Temperatures!

My 7800 GTX runs at 80 C load. I thought is was a case cooling problem, so I spent all day to rearrange components and clean up the case in order to drop the system temperatures. I even cleared out 4 PCI slots under the video card to fit a old 70mm fan so the case circulation is like a...
- Skyhanger
- Thread
- Feb 4, 2006
- Replies: 29
- Forum: Cases & Cooling
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Sonata II: how do you get at the front 120mm fan slot?!?

I have the case. There are like 4 or 6 (dont remember) plastic tabs holding the front panel in place. They can only be accessed from inside the computer (behind the metal panel behind the front panel). Just look around/near the HDD cages and 5" drive cages and try to look understand how the...
- Skyhanger
- Post #4
- Feb 3, 2006
- Forum: Cases & Cooling
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AMD Stock Heatpipe Heatsink Review by jmke

I got my 4 heatsinks on Wendesday night. One of my friends and I put the new heatsinks in. Prev Load Temp w/ Stock Alumminum HSF: 57 C Current Load Temp: 51 C @ 2500 rpm If use the power supply straight from the PSU instead of using the motherboard fan connector, load temps are: 47 C Its...
- Skyhanger
- Post #81
- Feb 3, 2006
- Forum: Cases & Cooling
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AMD Stock Heatpipe Heatsink Review by jmke

Wasn't the older heatsink using a 70mm x 15mm fan?
- Skyhanger
- Post #59
- Feb 1, 2006
- Forum: Cases & Cooling
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Going to swap HSF... never done this before...

I think that was a misqoute on his part. I'm pretty sure he got an AMD heatpipe heat sink. Those are standard w/ all the dual core opterons, FX series, and the X2 series, with the exception of the 3800+ X2. I'm very sure its designed to mount onto a generic AMD 939/754 mount.
- Skyhanger
- Post #5
- Feb 1, 2006
- Forum: Cases & Cooling
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Cingular just had a MAJOR F-UP in florida...

It happened to me too about a year ago w/ t-mobile. For about 8 hours one night i kept getting switched over to random ppl and random ppl got diverted to me.
- Skyhanger
- Post #16
- Jan 31, 2006
- Forum: OT Discussion Club
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POLL: Would it be worth it for me to try AMD?

You hold off for a bit and see what the new AMD and Intel offerings that will come out this year... (Memron (?), AM2, etc...)
- Skyhanger
- Post #10
- Jan 31, 2006
- Forum: CPUs and Overclocking
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$400 cheque from the government today...

I had a cruise in Alaska and every year citizens get a huge handout. The State of Alaska is really damn rich. Too bad they can't buy good weather...
- Skyhanger
- Post #39
- Jan 31, 2006
- Forum: OT Discussion Club
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Retail/Stock Opteron HSF

I already bought 4 for $45. He sent me an email w/ tracking (I didn't know USPS has tracking!). It should arrive before the end of the week.
- Skyhanger
- Post #11
- Jan 30, 2006
- Forum: Cases & Cooling
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someone give me a lesson in fan adapters

Theres one they made for 92mm w/ 110mm blades I don't think 120mm can fit without a tight squeeze. 80*sqrt(2) = 113mm, that diagonal is more than enuff to squeeze a 92mm fan in. 92*sqrt(2) = 130mm, i dont think you have enough space to place a 120 mm fan w/ 5mm of clearance on each corner...
- Skyhanger
- Post #5
- Jan 30, 2006
- Forum: Cases & Cooling
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where can I buy this cooler?

Why would you want that? According to the reviews, it's a peice of crap compared to the Vantec IceberQ Copper or the Evercool VC-RE Besides, I don't know if you can find it anyways. Might as well go w/ the more reputable brands...
- Skyhanger
- Post #10
- Jan 30, 2006
- Forum: Cases & Cooling
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The NEW ME without the Pink and Hat!!

dude... just drop the AZN look. You don't need to look like a ricer to be cool. Anyways, I always loved saying this as a kid at CNY: gong shi fai tsai (may you receive good fortune) hong bao na lai (now hand over the red envelopes!)
- Skyhanger
- Post #205
- Jan 29, 2006
- Forum: OT Discussion Club
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Starcraft Ghost Full Trailer

You think this game might eventually become the duke nukem of Bizzard? Looking at past experience, Blizzard is very willing can expensive projects if they think it is not up to par w/ their standards... They cancelled WC Adventures: Lord of the Clans They also disowned: Diablo: Hellfire As...
- Skyhanger
- Post #5
- Jan 29, 2006
- Forum: Windows
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How do power surges affect a computer?

Knowing how to solder has nothing to do w/ knowing how electricity works. I'm an EE student none of my classes helped me learn how to solder (picked up that skill over summers). That point aside. I think cker's explaination is quite complete. We can get into a more techinical analysis but it's...
- Skyhanger
- Post #3
- Jan 29, 2006
- Forum: Ask a Technical Professional
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GPA

Actually you might want to leave it on, many ppl may think your GPA is <3.0 if you leave it off...
- Skyhanger
- Post #4
- Jan 29, 2006
- Forum: OT Discussion Club
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AMD Stock Heatpipe Heatsink Review by jmke

Look for heatsink_outlet. He has ~80 of them in stock. I planning to buy 4 tommorow, once I confirm that my friends and I are getting that many.
- Skyhanger
- Post #48
- Jan 29, 2006
- Forum: Cases & Cooling
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??? HAPPY CHINESE NEW YEAR!! ???

Check again. Yeah I miss the red envelopes. Used to get tons of cash (at least from a kid's perspective) every CNY. Now I'm too old and asians here don't do that even w/ their own kids...
- Skyhanger
- Post #30
- Jan 29, 2006
- Forum: OT Discussion Club
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Time changes modern human's face

Maye the popularity of the C-section also prevented babies w/ large heads from dying. Back in the old days, women w/ small hips is almost like a death sentence if you get pregnant... Nowadays you see petite chicks all over the place... not that I'm complaining.
- Skyhanger
- Post #17
- Jan 28, 2006
- Forum: OT Discussion Club
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Antec Sonata II: Air Duct Compatible with XP-90?

I have the Sonata II and I say: DITCH THE DUCT. It does more harm than good (screws w/ your cooling). Whoever thought cpu ducts are a cool idea obviously didn't try testing it out throughly...
- Skyhanger
- Post #4
- Jan 28, 2006
- Forum: Cases & Cooling
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What do you think of this Computer (help)

The cpu is overkill if you ask me That belongs in a gaming rig
- Skyhanger
- Post #3
- Jan 28, 2006
- Forum: Computer Building
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Which one will do better??

Anyone else w/ experience w/ a AMD stock heatsink??? I'll order on Sunday evening if I haven't changed my mind, since they can't ship on weekends anyway.
- Skyhanger
- Post #6
- Jan 28, 2006
- Forum: Cases & Cooling
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upgrading to pic-e

It's pretty good, I got it about 4.5 months ago. That deal has been going on for at least half a year from eVGA. newegg is not the only one w/ the deal. Look around and hopefully you will find some more retailers doing the same.
- Skyhanger
- Post #3
- Jan 28, 2006
- Forum: Computer Building
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Zalman Fanless Northbridge Cooler Doesn't Cut It!

Looks like you might have problems w/ a Arctic Silencer. A Zalman on the other hand should be fine.
- Skyhanger
- Post #10
- Jan 28, 2006
- Forum: Cases & Cooling
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Asian people what you doing for the New Year

Vietnamese, Korean, and Japanese actually have words that sound suprisingly alike to Chinese. It has to do w/ all the historical cultrual exchanges that happened over the centuries, not unlike relationships between many european languages.
- Skyhanger
- Post #43
- Jan 28, 2006
- Forum: OT Discussion Club
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Asian people what you doing for the New Year

You can always install chinese fonts. The only problem is you have to learn that pain-in-the-ass pingying (not so bad if you learned chinese in the states) only because you can't find chinese labled keyboards around here. I learned to speak chinese using that older zhu(?)ying. From what I...
- Skyhanger
- Post #42
- Jan 28, 2006
- Forum: OT Discussion Club
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Which one will do better??

I've been looking at all types of coolers and I've just been wondering what cooler is best bang for my buck. I also want some measure of silence so I won't go insane. After alot of research, I've decided the only high quality coolers that I can find without splurging $$ on expensive zalman...
- Skyhanger
- Thread
- Jan 28, 2006
- Replies: 5
- Forum: Cases & Cooling
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is this a decent hsf?

Or if you want, there are a overstock of those heatpipe AMD coolers on ebay. Around ~100 of those are listed as $15 shipped. Search for sellers heatsinkninja and heatsink_outlet Apparently alot of users got rid of their stock heatsinks without trying them 1st, no knowing the free gem they...
- Skyhanger
- Post #8
- Jan 28, 2006
- Forum: Cases & Cooling

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