The voltage and wave-length at the quantum limit of the spectrum under investigation are denoted by ν₀ and λ₀.

In north west India and Afghanistan, Türkish rule was established by Ton Yabghu Kaghan about ad 625. He advanced up to the Indus river and installed local Türkish dynasties.

[of Henri, duc de Montmorency] After being stripped of his admiralcy he fought ashore, and in 1630 won a victory at Avigliana in Piedmont, and was made a Marshal of France

an engrossing documentary