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Post by ironhold on Apr 23, 2016 6:47:09 GMT
www.snopes.com/glass-water-oil-heat/This viral video appears to show someone cutting a jar apart using nothing more than sunflower or cooking oil, water, and a piece of metal that had been heated with a blowtorch. The source is reputable, but no one can guarantee this is real.
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Post by silverdragon on Apr 23, 2016 8:03:29 GMT
Question, this is of course suggesting its "thermal shock" that breaks the glass.
Has anyone tried just poring hot oil [say from a deep fryer] on top of the water to see what happens there?...
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Post by GTCGreg on Apr 23, 2016 13:40:58 GMT
Pouring super hot oil onto water is not a good idea, unless you' enjoy getting third-degree burns.
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Post by the light works on Apr 24, 2016 2:05:52 GMT
Pouring super hot oil onto water is not a good idea, unless you' enjoy getting third-degree burns. yeah... file it under things I won't be trying. |
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Post by ironhold on Apr 24, 2016 3:44:19 GMT
Pouring super hot oil onto water is not a good idea, unless you' enjoy getting third-degree burns. How it works is this: 1. You take a jar and put it inside a large bowl. 2. You fill the jar with water up to the level you want to have cut at. 3. You pour water into the bowl up to the same level. 4. You add oil to the water in the bowl. 5. You take a piece of metal, heat it with a blowtorch, and put it in the oil. That's supposed to cut the glass. |
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Post by the light works on Apr 24, 2016 4:01:11 GMT
Pouring super hot oil onto water is not a good idea, unless you' enjoy getting third-degree burns. How it works is this: 1. You take a jar and put it inside a large bowl. 2. You fill the jar with water up to the level you want to have cut at. 3. You pour water into the bowl up to the same level. 4. You add oil to the water in the bowl. 5. You take a piece of metal, heat it with a blowtorch, and put it in the oil. That's supposed to cut the glass. I'm dubious. one of the reasons for using oil to quench forged metal is that it conducts heat slower than water does. |
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Post by silverdragon on Apr 24, 2016 8:47:27 GMT
There is the point, "Super" hot oil?.. no, just regular less than 100degC?... 'obviously' this works with only a few degree change if its a thin piece of metal doing that work?. if the video is to be believed.
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Post by the light works on Apr 24, 2016 14:13:39 GMT
There is the point, "Super" hot oil?.. no, just regular less than 100degC?... 'obviously' this works with only a few degree change if its a thin piece of metal doing that work?. if the video is to be believed. maybe a few tenths of a degree, farenheit. I suppose if you were to heat the oil and water, BOTH, and the water heats faster than the oil, then under perfect circumstances, it might shear the line between the water and oil. |
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