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Mark
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Re: youtube

Post by Mark » Tue Sep 26, 2017 4:03 pm

Yet another ...
Manned Octacopter
https://gfycat.com/BrownParallelCaribou
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Mark
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Re: youtube

Post by Mark » Thu Sep 28, 2017 11:24 pm

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Re: youtube

Post by Mark » Tue Oct 17, 2017 2:34 am

Tealight Pulse Jet
"I honestly have no idea how I made this. I was just experimenting around with empty tealights and pure ethanol and suddenly it started pulsing."
https://www.youtube.com/watch?v=HxsJna3tMF4
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Mark
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Re: youtube

Post by Mark » Wed Nov 01, 2017 12:46 am

A pulse jet with a jam jar jet exhaust port
自作小型パルスジェットエンジンで風車回し2 pulse jet engine
https://www.youtube.com/watch?v=rnqfKCuFrss
https://www.youtube.com/watch?v=sBaAxmueDLM

Jam jar jet boat
https://www.youtube.com/watch?v=MKMab6pJwas
Last edited by Mark on Wed Nov 01, 2017 6:32 pm, edited 2 times in total.
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Mark
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Re: youtube

Post by Mark » Wed Nov 01, 2017 1:10 am

"It is a compact, pulse jet using a drug bottle. A hole of 6 mm is drilled in the lid of the bottle."
Bottle pulse jet
https://www.youtube.com/watch?v=RD9tMbgvfn8

Not a bad demo
https://www.youtube.com/watch?v=JkWpQRS3vkY

Glass tube putt-putt boat.
https://www.youtube.com/watch?v=JokZp3zXhEU#t=1m17s
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Re: youtube

Post by Mike Everman » Wed Nov 01, 2017 4:49 am

I want to make a big putt-putt boat. have a meet and do races or something
Mike
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Mark
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Re: youtube

Post by Mark » Wed Nov 01, 2017 2:26 pm

Putt-putt boats would be more auditory friendly.
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Mark
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Joined: Sat Oct 11, 2003 10:14 pm

Re: youtube

Post by Mark » Fri Nov 03, 2017 12:59 pm

Mike Everman wrote:
Wed Nov 01, 2017 4:49 am
I want to make a big putt-putt boat. have a meet and do races or something
Tidbits from 2005 - Just old stuff
"You can also use a single piece of copper tubing with one end pinched closed. This might be thought of as a "half" of a typical putt putt engine. A fellow I conversed with was using such an apparatus to propel his canoe along a river. Not really the most efficient way to use heat but it worked. In a vague way, my piglet snorkeler is "half" of a typical valveless pulsejet."
Mark

And this I dug up from the Pop-pop page references. It might be funny to brightly colorize a man-sized putt-putt boat in keeping with the miniature putt-putt boat motif. ha

Man-sized engine and stuff ...
"This paper is concerned with a remarkable fluid flow phenomenon which should
logically be called "the McHugh effect," or "McHugh cycle" after its discoverer,
C.J. McHugh In its original form (Figure 1), it was clearly the
(mechanically) simplest heat engine ever invented. When heat is applied
to the boiler, the water column in the tube oscillates backward and forward
and the toy boat is driven forward through the water."
http://www.dtic.mil/dtic/tr/fulltext/u2/a046533.pdf

1915 McHugh Patent
http://pdfpiw.uspto.gov/.piw?PageNum=0& ... C200%2C960

http://www.nmia.com/~vrbass/pop-pop/
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Mark
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Re: youtube

Post by Mark » Sun Nov 05, 2017 3:16 am

How Heat-Resistant (Borosilicate) Glassware Is Manufactured
https://www.youtube.com/watch?v=PWdvQIBAzhk
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Mark
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Re: youtube

Post by Mark » Tue Nov 07, 2017 8:11 pm

The Lava Lamps That Help Keep The Internet Secure
https://www.youtube.com/watch?v=1cUUfMeOijg
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Mark
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Joined: Sat Oct 11, 2003 10:14 pm

Re: youtube

Post by Mark » Fri Nov 17, 2017 8:46 am

Presentation is Everything

Mark
Posts: 10692
Joined: Sat Oct 11, 2003 10:14 pm

Re: youtube

Post by Mark » Fri Dec 01, 2017 4:14 pm

Inflating Evacuation Slides
https://www.youtube.com/watch?v=nM8P6TtcrFY

This entraining aspect made me think of the Gluhareff pressure jet to some extent.

"Slides inflate with an initial boost from a canister of compressed carbon dioxide and nitrogen. The canister provides only about one-third the volume needed to inflate the slides. The remaining volume is supplied by ambient air, channeled into the slides through aspirators."
"When the inflation mechanism is triggered—by a lanyard pulled by the slide as it tumbles from its storage case—gas from the canister accelerates through the aspirators at high speed, creating a vacuum that sucks ambient air into the aspirators through louvers. When the slide is fully inflated, the louvers close."
Read more at http://www.airspacemag.com/flight-today ... 51CHQYT.99
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