The heats and what each is used for: Sparkling or Sizzling heat. Never used. Destroys the metal alloy content and grain structure. White heat or welding heat. For welding mild steel and iron. Remove from fire when sparks begin to fly and stop forge welding when down to light yellow heat. Light Yellow heat. Best heat for forging wrought iron and mild steel. Try to obtain this heat before removing from the fire for forging. Sometimes this is described as a light welding heat.
Top definition. umh. Similar to uhm, it is a cross between uh and um. Used to describe a thought, comment or response that is lingering. umh...I'm not sure where to go for dinner.
âºâº Definition: Microohm. The SI prefix micro represents a factor of 10 -6, or in exponential notation, 1E-6. So 1 microohm = 10 -6 ohms. The definition of a ohm is as follows: The ohm (symbol: Ï) is the SI unit of electrical impedance or, in the direct current case, electrical resistance, named after Georg Ohm.'m feeling lucky, show me some random units. The SI prefix micro represents a factor of 10 -6, or in exponential notation, 1E-6.