Aluminium is a good electrical conductor and is often used in electrical transmission lines. It is cheaper than copper and weight for weight is almost twice as good a conductor. When evaporated in a vacuum, aluminium forms a highly reflective coating for both light and heat.
Nelson Mandela had a large family and had 13 brothers and sisters.  Of all of his siblings, he had one full brother and one half  brother.
Truly the Father of a Nation. Nelson Rolihlahla Mandela was the son of one of South Africa's leading dignitaries, Chief Henry Mandela of the Tembu Tribe, and it was as a young law student that he became involved in political opposition to the white minority regime.ruly the Father of a Nation. Nelson Rolihlahla Mandela was the son of one of South Africa's leading dignitaries, Chief Henry Mandela of the Tembu Tribe, and it was as a young law student that he became involved in political opposition to the white minority regime.