Transition metals tend to form more coloured ions and compounds more than most other elements either in solid form or dissolved in a solvent like water. Examples of the colours of some transition metal salts in aqueous solution are shown below (grey = colourless in the diagrams).
Welcome to the Machine. Welcome to the Machine is the second song on Pink Floyd's 1975 album Wish You Were Here. Written by bassist Roger Waters, it features heavily processed synthesizers and acoustic guitars, as well as a wide range of tape effects. 1 Theme.
Spears joins a number of Top 40 staples who contribute to Moroder's return to music, including Kylie Minogue, Charli XCX and Sia, who sings on the LP's title track DÃ©jÃ  Vu.. In an interview with Rolling Stone, Moroder teased the Tom's Diner cover, noting that it was Spears' idea.