A valve arrangement in the cylinder head where the valves are at an angle to the cylinder bore. Canting the valves can make for a straighter path for air to flow into and out of the intake and exhaust ports. The area of an engine in which the air/fuel mixture is burnt.
There are lighters out there designed to burn up to 2500 degrees Celsius, so it is certainly possible to find one that is up to the task if you have a project that involves melting glass. One reason that most lighters will not melt glass is that they are simply not hot enough.
How hot does wood burn? Quick Answer. A well-aerated wood bonfire can reach temperatures of more than 2,012 degrees Fahrenheit and burns hottest in its final stages, when charcoal is formed. How hot a wood fire burns depends on the species of wood, its moisture content and the amount of oxygen it receives.