AC/DC's 45th anniversary is being marked with a new series of coins from The Royal Australian Mint. In the spirit of the band's 1990 classic, "Thunderstruck", the Mint partnered with Questacon - The National Science and Technology Centre to strike its AC/DC coins with a bolt of man-made lightning.
The experiment was conducted in the Caged Lightning exhibition at Questacon, which produces lightning using a Tesla coil. Ten AC/DC 50 cent pieces, appropriately featuring the famous high voltage logos and design elements from AC/DC albums, were 'Thunderstruck' with 3,500,000 volts of lightning
"We weren't sure what effect the lightning would have on the coins, but we discovered that because the coins are such excellent conductors of electricity, the lightning's mark is only visible under magnification."