I tried finding 1493 too. YT makes it very difficult to search videos it seems. I even went thru google search and no luck

@davidl.howser9707 - Could you just cut all the u shaped parts of an existing suitable coil, and then attach them all using a mesh, such as a sieve? Would they all have to be insulated from each other? Do you any suggestions for a solar powered heat source?

@@christopherd.winnan8701 I think Yes...if stove fiberglass gasket cord was used to suspend the U shaped fire treated oxide Copper coils. The fiberglass mesh cord could be knitted in a patern like commercial job site safety catch nets are weaved. The "U" Bent heat oxidized copper could be attached to the fiberglass net using metal hog rings, and hog ring pliers. Keep the fiberglass mesh net dry as not to short each "U" bend coil to another.

@christopherd.winnan8701 As for a Solar application. An array of many small credit card fresnel lenses all focused at some distance tried to not overheat the steel or cast iron onto one flat metal surface painted black with high temperature BBQ grill or ICE exhaust manifold engine paint to absorb the most infrared wavelength heat may generate sufficient heat if tracking the Sun by repositioning the plate or easier to assemble place the many fresnel lenses in a arc pattern position to follow your area's average seasonal sun angle, and azimuth. Then on the back side of your chosen metal plate with the same fiberglass gasket cord woven into the mesh mentioned in my first reply is placing the heat treated and oxidized copper "U" bent coils as close as possible to the heated metal surface using the smallest fiberglass gasket diameter you can find. I think a cast iron flat griddle would be a low cost, and good surface with sufficient mass to try. Also add some glass fiber board insulation to the back of your medal plate to cover and close in the oxidized copper U bends to lessen heat loss by ambient temperature, and wind. That type of glass board insulation is made from recycled molten bottle material offering both insulation to heat loss, and high heat burning resistance to the insulation. Wear your air mask when cutting glass fiber material. Also I saw a KZfaq video explaining how recycled glass is made into glass board insulation fiber. Enjoy the fun when Thinking & Tinkering. : )

@@davidl.howser9707 Fibreglass is great stuff, but is beyond the scope of my home tinkering. Still, I am intrigued by the use of many small fresnel lenses. Where would you source these and how much would they cost?

@rezganger - 1000 degrees c is a bit of ask for many of us. How about a lower heat version based on solar, which can get 2 or 300 quite easily, more with multi focussed mirror set ups? %00 is maybe a more acceptable challenge for those of us without access to back yard rocket stoves or tokomak generators.

@voidy123 - is there some way to cannabalise an old dot matrix printer as a frame for all those pins?

@@christopherd.winnan8701 ,I don't think there are so many pins on a dot matrix print head, maybe an old cpu socket can work, it's got a lot of pins, but Ihey are gold and mounted in plastic so maybe not. I think a small punch and copper sheet might do the trick.

@@christopherd.winnan8701 On the other hand if you talk about a dot matrix printer punching dents in thin copper sheeting, now that will be awesome!!!, the print head probably wont last too long though.

@@Voidy123I really like the idea of upcycling some old ewaste that has lots of those old connector pins. Some of those things had really big connectors. Why would you want to punch holes in the copper? Sorry, I am new to all this....

@@christopherd.winnan8701 not holes, just dents instead of pins, that way you can have 2 copper plates pretty close with a bunch of connections in between, I don't know if that will work, will try tomorrow in my workshop

Hello Travis - ice and dry ice can be expensive to produce, especially in warm climates. I wonder if there is a cheaper way to keep the water cool? Does it have to be water. Are there other common liquids that have better thermal capacity? Is there a substance that you can add to water to increase the boiling piont, just as anti freeze lowers the freezing point?

@@christopherd.winnan8701 Water ice and ammonium nitrate could use an endothermic effect to make the water colder for a short time. As for holding a high thermal capacity try gallium. And has a high boiling points. Circulating the liquids in a long pipe and or radiator and using convection current to circulate it may be possible if you want to remove heat. ? Salt can raise the boiling point of water by a bit?

@@travismoore7849 Interesting options, although I would be worried about storing heat in NH4NO3 given its explosive reputation.

@@christopherd.winnan8701 I was thing about heat stored from ambient heat and make a lager temperature difference by extreme cold. Or using that along with a low thermal heat source.

@@travismoore7849 I think that is a very good strategy. In my own case the main limitation is budget, which is why I prefer materials that come either out of the waste stream or perhaps occasionally from the dollar store. If we can come up with a good cheap solution, I would be happy to give it a try. Did you see the comments about using a dot matrix printer to create lots of tiny connectors in the copper substrate?