Search found 10814 matches

by Mark
Sat Feb 29, 2020 1:56 am
Forum: Off topic forum
Topic: youtube
Replies: 1461
Views: 221956

Re: youtube

by Mark
Tue Feb 11, 2020 8:08 pm
Forum: Tools and Construction
Topic: Odds and ends
Replies: 1770
Views: 374936

Re: Odds and ends

I ordered one of these that change color for a jam jar jet effect, which looks like a cherry blossom coming to life. Maybe I'll make the methanol burn green with boric acid to contrast the pink or lithium chloride for a brighter red. Wonder if the higher heat will bring out any more color or not? ww...
by Mark
Fri Jan 31, 2020 2:04 pm
Forum: Tools and Construction
Topic: Odds and ends
Replies: 1770
Views: 374936

Re: Odds and ends

I was going to try to have quirky quartz shape made but ran into a delay. Hi Friend, Sorry but we are now on Chinese Spring Festival holiday and we China are fighting the novel coronavirus in the meanwhile. So our manufacturer will have a long holiday till after Feb 10. Could you send us a ebay mess...
by Mark
Sun Jan 26, 2020 5:37 pm
Forum: Tools and Construction
Topic: Odds and ends
Replies: 1770
Views: 374936

Re: Odds and ends

It might have been funny to try one of these limited edition bottles that looks like it has already fractured. "Absolut's new limited edition is made of recycled glass and gives the impression of a crushed bottle. This design creates awareness and encourages people to change. Absolut shows that we c...
by Mark
Sun Jan 26, 2020 1:08 am
Forum: Tools and Construction
Topic: Odds and ends
Replies: 1770
Views: 374936

Re: Odds and ends

600,000 liters produced per day. 13 million bottles in the storage room. That's a lot of Absolut jam jar jets.
https://youtu.be/KS8auzQ-15E?t=296
https://youtu.be/TMPLmYnSut8?t=165
https://www.youtube.com/watch?v=OUsha3uFPAA
by Mark
Sun Jan 19, 2020 2:42 pm
Forum: Tools and Construction
Topic: Odds and ends
Replies: 1770
Views: 374936

Re: Odds and ends

Speaking of coherent flame fronts from the last post, there was this Coleman heater I took apart in the early days to use the fuel tank as a possible jam jar. It has a pancake shape with about a 1 inch hole in the center which when lit would flutter if fueled with methanol but was unstable and would...
by Mark
Sun Jan 19, 2020 12:37 am
Forum: Tools and Construction
Topic: Odds and ends
Replies: 1770
Views: 374936

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: 1770
Views: 374936

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: 1770
Views: 374936

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: 1770
Views: 374936

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: 1770
Views: 374936

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: 1005

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: 1770
Views: 374936

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: 1770
Views: 374936

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: 1770
Views: 374936

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...