Climate and average monthly weather data for Zugspitze, Germany displayed in a beautiful overview. Find the best time to go to Zugspitze.
Removing the flash from a casting is beneficial in a head because it eliminates the swirling effect of the air/fuel. Don't go taking lots of metal out, just smooth out the surfaces and you should be fine.
An arc flash (also called a flashover), which is distinctly different from the arc blast, is part of an arc fault, a type of electrical explosion or discharge that results from a low-impedance connection through air to ground or another voltage phase in an electrical system.