Ice Czar

a sound engineering idea as mentioned a box girder offers considerably better resistance to torsion (and you can fill it) looks good ;)

an even more advanced (crazy) biomass forge (and smelter) is what the DOD is trying to develop for energy production. Its chemical looping combustion. The DOD is actually trying to combine the proven design with Fischer-Tropsch process to turn the hydrogen into diesel and jet fuel and scale it all for remote base energy production. Diversified Energy Bioenergy pact between Europe and Africa there are quite a few patents involved but 6110239 (pat2pdf) is the main one your primary products are hydrogen, carbon monoxide (Syngas), secondary products are molten steel, cement, the capture of sulphur from any dirty carbon fuel stock. runs on coal, coke, biomass, waste, tires ect. the Tin in the mix has an affinity for sulfur in the fuel stock, other trace metals are captured by the steel not to completely sidetrack the thread :p

Biomass will simply burn rather than char, due to the excess available oxygen. Scavenging the fume gas from the forge to first dry then char the biomass, then feeding it to the firepot makes more sense. Employing the wood gas produced by the pyrolysis stage to boost the heat in the firepot is another refinement. A close coupled gasifier (that also acts as a recuperator) whose flue gas is then mixed with oxygen and reintroduced to the firepot. the images show flue gas being employed to dry and char a biomass stack while I cant access the full description based on the title Id guess at some point in that solution they are also introducing steam to a hot charcoal bed to crack it into hydrogen.

Trencher (tableware)) the first thing that comes to mind when Medieval cuisine is the subject http://en.wikipedia.org/wiki/Cutlery#History (with a masterpiece painting by Goya) http://en.wikipedia.org/wiki/Fork#History http://en.wikipedia.org/wiki/Spoon#History spoonforkcutlery + ancientmuseumbronzeironpewter combinations in image search bring up some interesting stuff http://www.exeter.gov.uk/timetrail/10_goldenage/object_detail.asp?photoref=2_10_2 "A pewter 'Apostle spoon' This is the earliest spoon in the hoard from City Mills. Its name derives from the saint, holding sword and keys, at the knop (end). It dates to c. 1500, so it must have been at least 150 years old when deposited in the late 17th century. " late middle ages

see Id still vote for the Little Giant, especially since Ive spent so much time dancing to avoid the flying parts when they break loose :p now I havent personally seen one put a hole through the guard, but there where several nice holes in the guard from before I started, when we got the 100lb LG the guards went from serious wire mesh to thick steel plate

its primarily there as a a surfactant/wetting agent (so is the soap) Surfactants: Detergent Chemistry there is one good reason to employ Shaklee however Products derived from natural, nontoxic ingredients -- once seen as fringe -- are now mainstream. LA Times thats not to say Basic is one of those green surfacants....

Plasma nitriding - Wikipedia, the free encyclopedia Gas and Liquid Bath Nitriding Gas Nitriding or diffusion nitriding or ammonia (diffusion) nitriding has been around for nearly a century. It is a simple and inexpensive method for surface hardening of 'nitriding alloys' i.e. alloy steels with nitride forming elements and other metals e.g. aluminium, chromium, molybdenum and titanium to name but a few. Liquid bath nitriding or salt bath nitriding on the other hand is not a classical nitriding technique but rather a carbo-nitriding technique, since it employs rather toxic salts of sodium cyanide. These salts break up at high processing temperatures, as high as 510 degrees Celsius up to 610 degrees Celsius depending upon various factors. This technique produces only a thin 'chemical compound zone' which is hardly 4 to 10 micrometres thick, with no underlying hardened sub-surface. In developed nations, the use of such toxic salts is banned, whilst the process thrives in the Third World without any restrictions, or circumvention of slack laws and regulations. ect

James-Younger Brothers

many ad agencies and design studios used to have that sign too only slightly different Price, Quality, Speed pick any two as long as one of them is quality

deja vu .

strange to get to 3 pages without the "technically" correct answer aluminum silicate fiber High temperature insulation wool http://www.alibaba.com/product-gs/203459469/Aluminum_Silicate_Wool.html

Get bent (and twisted) :p

Brighton Feed & Saddlery 370 N. Main Brighton, CO 303-659-0721 50lb bags both Bituminous and Anthracite dont have current prices

Milano maestro del ferro battuto Alessandro Mazzucotelli Palazzo Castiglioni Casa Campanini Casa Galimberti Casa Battaini Casa Guazzoni either done by or heavily influenced by Mazzucotelli (Ive found definitive attribution sometimes difficult) Anvil Interview with Stephen Bondi

if the objective is turn and burn Ride The Continental Divide by Karl Zuercher Ride the Divide, 15 Passes in 1 Day, 1000 Miles - by Randy Bishop (partial) every paved pass over the continental divide in Colorado, in order from north to south or vice versa can be done in 4 days but a slower pace will be far more scenic if you have issues with attitude sickness, nevermind probably a good idea to have your bike tuned up locally as well for altitude riding

errr...copper is annealed by heat just like steel, whether you quench it or not doesnt matter, its quicker to get back to working it, but it can cool slowly and still be annealed Annealing (metallurgy - Wikipedia, the free encyclopedia)

mostly carbon monoxide, possibly some hydrogen, possibly some methane Coal gas Producer gas Water gas Water gas shift reaction

think you might want to be more specific we use a brass wire wheel on hot steel to get a gold finish, and I havent noticed a black finish employing a stainless steel wheel (but then the stock wasnt at that high a temperature either)

note to self: rotoroot nose and ears before any MRI note to forum: when chiseling steel (pneumatic) at close range, always exhale through the nose, but inhale through your mouth :D

assuming that 3 phase is available, because phase converters are also pricey If your going to employ a Variable Frequency Drive Id highly suggest you provide it a nice cool dust free home, At the shop when ours finally fried, it wasnt replaced. ($700) 3 Phase Inverters Home Made 3 Phase (disclaimer: Have no idea how well this may work)

while Im not all that great at this game, I think youll need something more than a 12V DC motor for a grinder link Electric Gear Motor 12v Low Speed 50 RPM Gearmotor DC - eBay (item 150231105735 end time Apr-05-08 13:14:21 PDT)

Green Energy Park - Dillsboro, NC - Capturing Landfill Methane Jackson County Green Energy Park ? North Carolina ? Dillsboro, NC Methane Powered Forge (just related and interesting, Id say a blown forge over a naturally aspirated, and with the liability these days...)

ignored and "decorated" in a barn for a few decades William Foster 1844 TTT 0-3-5 (stone) (soapstone in all the stamps that are still there, more than a few letters missing) still working on how to clean it up without removing the patina

sideways, by wheedling my way into an apprenticeship with no real smithing experience. (but a strong art and sculpture background and the right attitude)