Glass-to-metal seal little lower than that of the soda-lime glass. Classically high lead containing glasses are used, but it is also possible to substitute these by multi-component glasses e.g. based on the system ---------. Glass-to-metal seal Glass-to-metal seals are a very important element of the construction of vacuum tubes, electric discharge tubes, incandescent light bulbs, glass encapsulated semiconductor diodes, reed switches, pressure tight glass windows in metal cases, and metal or ceramic packages of electronic components. Properly done, such a seal is hermetic (vacuum tight, good electrical insulation, special optical properties e.g. UV lamps). To achieve such a seal, two properties must
Pokémon episodes removed from rotation name, and/or weapons in the episode. The first episode to be removed from rotation after the September 11 attacks of 2001, mainly because the censors noted similarities between the attacks and Tentacruel attacking the city. The character Nastina also used military-style weapons during the fight scenes in the episode. However, Tentacruel striking a building was not removed from the dub's opening theme, and the episode is still readily available on the home video and DVD markets. The episode was aired a month after the September 11 attacks, and was not aired in the US again until the series began airing