The vagaries of wind and sun—especially in countries without favourable weather—mean that turbines and solar panels generate electricity only part of the time.
Its MBA prepares students for the vagaries of doing business in what Wilfried Vanhonacker, the school's dean, describes as “difficult economies”, such as Russia, China and India.
One half of its surface— the half which, thanks to the vagaries of orbital mechanics, always faces Earth— is dominated by dark, smooth expanses of ancient, frozen lava known as maria.
He held the knife in his hand, and pushed its point between my teeth: but, for my part, I was never much afraid of his vagaries. I spat out, and affirmed it tasted detestably--I would not take it on any account.