Search found 10808 matches

by Mark
Sun Jan 19, 2020 12:37 am
Forum: Tools and Construction
Topic: Odds and ends
Replies: 1765
Views: 347436

Re: Odds and ends

Soda Water Bottle Jam Jar Jet https://www.youtube.com/watch?v=md1rdl2auWI The El Dorado rum bottle is proving extremely hard to solve. the neck widens and narrows and bottles that are not cylindrical don't seem to channel the flame as much as a typical bottle. It might as well be a sphere which I di...
by Mark
Mon Jan 13, 2020 8:36 pm
Forum: Tools and Construction
Topic: Odds and ends
Replies: 1765
Views: 347436

Re: Odds and ends

The first time this ran the exhaust tube shifted during the run and it stopped after only 5 seconds or so. But it was nice to see an ordinary wine bottle can become a jam jar jet too. Here's an old post from 2013 when I first thought about it. In the video review the lid is said to look like a Smuck...
by Mark
Wed Jan 08, 2020 7:35 pm
Forum: Tools and Construction
Topic: Odds and ends
Replies: 1765
Views: 347436

Re: Odds and ends

A plastic water bottle look for something different. The decibel level was 112 according to the sound meter I bought.

Jesting Jam Jar Jet
https://www.youtube.com/watch?v=hsfdBz1QtBA
by Mark
Mon Jan 06, 2020 9:22 pm
Forum: Tools and Construction
Topic: Odds and ends
Replies: 1765
Views: 347436

Re: Odds and ends

Another bottle shape just to play around while trying to find some parts for more novel ideas.
Diplomatico Jam Jar Jet
https://www.youtube.com/watch?v=IrIVCNbi0rQ
by Mark
Mon Jan 06, 2020 2:22 pm
Forum: Tools and Construction
Topic: Odds and ends
Replies: 1765
Views: 347436

Re: Odds and ends

Dead air space and snorkels. The Death Mask https://www.youtube.com/watch?v=hilPPJEwq6I&feature=youtu.be&t=99 https://www.youtube.com/watch?v=wrHMtLsF2js The topic brought to mind how the giraffe might get around the problem of dead air space with a 2.3 meter trachea length. Dead space and tidal vol...
by Mark
Sat Dec 28, 2019 11:57 pm
Forum: Valveless pulsejet forum
Topic: Christmas bonus!
Replies: 2
Views: 105

Re: Christmas bonus!

It started out really promising, but then when it came to building something without any experience, reality set in. Still he had some talents in other areas.
by Mark
Fri Dec 27, 2019 9:40 pm
Forum: Tools and Construction
Topic: Odds and ends
Replies: 1765
Views: 347436

Re: Odds and ends

A clever presentation with some inventive tries but running into the school of hard knocks toward the end.

Tesla Pulsejet Engine [3D Printed
https://www.youtube.com/watch?v=28XbT11lL24
by Mark
Thu Dec 26, 2019 4:53 pm
Forum: Tools and Construction
Topic: Odds and ends
Replies: 1765
Views: 347436

Re: Odds and ends

This caught my eye, a store-bought jam jar jet in "durable borosilicate glass". They are very much like my Princess House oil candle lamp only no busy grass etchings or cone tapered top, a perfect cylinder but you must take caution for the hole might be "energetically restrictive". Wear eye protecti...
by Mark
Wed Dec 25, 2019 2:36 pm
Forum: Tools and Construction
Topic: Odds and ends
Replies: 1765
Views: 347436

Re: Odds and ends

This conical shape is interesting in that at the top you don't have a lot of blank space with no fire like a typical jam jar. I like how the flame fills the slanted decanter while still leaving a slim gap along the sides where a direct flame might be more llkely to crack a bottle. The bottom is an e...
by Mark
Sun Dec 22, 2019 1:57 am
Forum: Tools and Construction
Topic: Odds and ends
Replies: 1765
Views: 347436

Re: Odds and ends

Absolut French Ending Jam Jar Jet
https://www.youtube.com/watch?v=ImmewZnfjtE
by Mark
Sat Dec 21, 2019 5:46 pm
Forum: Tools and Construction
Topic: Odds and ends
Replies: 1765
Views: 347436

Re: Odds and ends

I noticed there's a distortion or heat stress effect of a black band around the Absolut vodka bottle only seen when held at an acute angle. The band goes completely around the bottle from the individually glued on letters on front to the clear plastic ~1 inch wide strip on the back of the bottle. Th...
by Mark
Sat Dec 21, 2019 12:10 am
Forum: Tools and Construction
Topic: Odds and ends
Replies: 1765
Views: 347436

Re: Odds and ends

by Mark
Fri Dec 20, 2019 10:54 pm
Forum: Tools and Construction
Topic: Odds and ends
Replies: 1765
Views: 347436

Re: Odds and ends

by Mark
Mon Dec 16, 2019 4:22 pm
Forum: Tools and Construction
Topic: Odds and ends
Replies: 1765
Views: 347436

Re: Odds and ends

On the Princess oil lamp I found some warnings on an eBay offering. "Use only lamp oil. Do not use gasoline, alcohol, or solvents as fuel in this or any other oil lamp. Failure to follow these instructions may cause fire or explosion which could result in property damage or serious personal injury f...
by Mark
Sat Dec 14, 2019 10:01 pm
Forum: Tools and Construction
Topic: Odds and ends
Replies: 1765
Views: 347436

Re: Odds and ends

Some morning mediocrity ... Quartz Test Tube Jam Jar Jet Being Fussy https://www.youtube.com/watch?v=GfUf8ruHmYM Quartz Test Tube Jam Jar Jet with Quartz Exhaust Tube https://www.youtube.com/watch?v=310eYsDJolo The vertical try just didn't want to sustain. I used some soft monel gauze underneath the...