Odds and ends

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Mark
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re: Odds and ends

Post by Mark » Wed Nov 29, 2006 1:55 pm

Here's a repost of a V-2 engine "spooling up". Sounds energetic.
Mark
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Irvine.J
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re: Odds and ends

Post by Irvine.J » Wed Nov 29, 2006 3:23 pm

http://www.youtube.com/watch?v=Z7S_QgE5MN8
Pretty funny really. I'll remember not to run behind a 747 without a helmet.

thecheat
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re: Odds and ends

Post by thecheat » Wed Nov 29, 2006 9:21 pm

here's a pretty small Valveless PJ! Reminds me of someone pinching the neck of a balloon and making it squeal...

http://video.google.com/videoplay?docid ... ejet&hl=en
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Mark
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re: Odds and ends

Post by Mark » Fri Dec 01, 2006 1:53 am

Seems like with acetylene you could just use a short length of straight tubing and try to get it to build feedback, something akin to a "jam jar tube" if you will. With such short distances to refresh/breathe into, perhaps a single in/out hole would be ample.
Mark
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hagent
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Re: re: Odds and ends

Post by hagent » Fri Dec 01, 2006 2:16 am

thecheat wrote:here's a pretty small Valveless PJ! Reminds me of someone pinching the neck of a balloon and making it squeal...

http://video.google.com/videoplay?docid ... ejet&hl=en
That's the smallest Chineese I've ever seen.

You would think that someone would have told him not to stand infront of the camera.
Hagen Tannberg

Mark
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re: Odds and ends

Post by Mark » Fri Dec 01, 2006 4:48 pm

It's interesting how it looks as though you can see through the red hot metal and see the spark plug tip and all.
Mark
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Mark
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re: Odds and ends

Post by Mark » Fri Dec 01, 2006 8:50 pm

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Mark
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re: Odds and ends

Post by Mark » Sat Dec 02, 2006 2:22 am

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Mark
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re: Odds and ends

Post by Mark » Sat Dec 02, 2006 2:40 am

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Mark
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re: Odds and ends

Post by Mark » Sun Dec 03, 2006 5:21 pm

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Jim Berquist
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re: Odds and ends

Post by Jim Berquist » Sun Dec 03, 2006 7:02 pm

Mark:

Ornithopters:

It looked like the manned unit lost control due to mechanical failure and or power.

The R.C. unit did it's thing and was most cool.

Hard to believe that the Idea came so long ago from a man that just wanted to fly, like a bird.

Don't you find the Net Amazing!!!!! who keys in all of this information?

It has gotten to the point of the world wide brain.....

Jim

Jim
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Mark
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re: Odds and ends

Post by Mark » Sun Dec 03, 2006 10:18 pm

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Jim Berquist
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re: Odds and ends

Post by Jim Berquist » Mon Dec 04, 2006 12:16 am

I find that wild as Urea can be readily converted into a oxidizer to make things go boom and or zoom!!!!

Jim
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marksteamnz
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Re: re: Odds and ends

Post by marksteamnz » Mon Dec 04, 2006 9:07 pm

berquistj@peoplepc.com wrote:I find that wild as Urea can be readily converted into a oxidizer to make things go boom and or zoom!!!!

Jim
Jim
Urea is NOT Ammonium Nitrate (thats the oxidiser / boom one)
Cheers
Mark Stacey
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