It's a description of a process - using carbon electrodes with an arc welder will gouge steel and allow the welder to cut it - much like a plasma torch, but with somewhat less precision...
With a better power supply(some kind of welding power supply? Nb. The high amp twist and lock wire connectors are standardised and called DINZE plug) carbon arc is an easy way of temperatures capable of melting *any* metal including steel. Problem is such high temps tend to melt refractory. Especially homemade ones.. Solution i found is to line the foundry with starlite esq matterals. flour baking soda, and pva glue mix. On heating that swells (Lots!) as it's surface turns in to a highly insulating carbon foam. OK the carbon foam is highly flammable, but it stop burning once all oxygen inside furnace has been used up.
Any Electrical spark, or arc, *is* a plasma.. (Nb even combustion flames are weak plasmas... And can be used to conduct electricity. it's easy to make thermionic valves that utilise ambient air pressure flames rather than low pressure gases) When air exceeds it's electrical breakdown voltage it becomes ionised and along with electrons those ions carry the current.
😂😂😂 mmmm what use it for that a blade cud do better I used to engrave metal objects like personalised stuf but I was a kid learning over ²⁰ years ago 😂😂
@@lucashelgesen It can take anywhere from 30 to 150mA across your chest (reads, hand to hand) to interrupt cardiac rhythm, 100mA is the generally quoted figure. As low as 0.01mA via sub-dermal (something has penetrated your skin to the wet layer) conduction will do the trick. A 9V battery can deliver 1Ah (1000mA over 1 hour) of current. If your hands are wet or sweaty or you happen to have cracked skin from callouses or other wounds, there is a definite chance you can cop a lethal hit. Yes you can lick a battery and be fine, because the current is passing across the 10mm or so of your tongue between the terminals, not across your chest. The dude your replying to is prolly being a little over dramatic (and yes, a close to flat battery may still be able to deliver 1/10th of its power, 100mA), but to say they "aren't strong enough" is also wrong. www.asc.ohio-state.edu/physics/p616/safety/fatal_current.html
