The law makes no special mandate. In 1789, Justice James Wilson was sworn in by the mayor of Philadelphia, Pennsylvania, where the court first sat. Thurgood Marshall, the nation's first African-American justice, took the Constitutional Oath in 1967 from Associate Justice Hugo Black, an Alabaman.
ballast - A device required by electric-discharge light sources such as fluorescent or HID lamps to regulate voltage and current supplied to the lamp during start and throughout operation.
Secondly the post should be in building or general diy section ... so .... tut. Thirdly ballast is a sand and stones/chips mix, typically 10mm to 20 mm size stones.Mix this with cement and you get concrete.hirdly ballast is a sand and stones/chips mix, typically 10mm to 20 mm size stones.Mix this with cement and you get concrete.