Building materials weight chart

Aluminum building wiring is a type of electrical wiring for residential construction or houses that uses aluminum electrical conductors.
Aluminum provides a better conductivity to weight ratio than copper, and therefore is also used for wiring power grids, including overhead power transmission lines and local power distribution lines, as well as for power wiring of some airplanes.
Utility companies have used aluminum wire for electrical transmission in power grids since around the late 1800s to the early 1900s.
It has cost and weight advantages over copper wires.
Aluminum wire in power transmission and distribution applications is still the preferred material today.

Chartism was a working-class movement for political reform in the United Kingdom that erupted from 1838 to 1857 and was strongest in 1839, 1842 and 1848.
It took its name from the People's Charter of 1838 and was a national protest movement, with particular strongholds of support in Northern England, the East Midlands, the Staffordshire Potteries, the Black Country and the South Wales Valleys.
The movement was fiercely opposed by government authorities, who finally suppressed it.