Vernissage

The correct answers are as follows: on the window glass and in December. If, while the temperature is above zero, and provided the air humidity is high, a water film forms on the glass surface, then, once the temperature drops below freezing, the film may turn into a dendrite-like frost pattern.

The most well-known reference to windmills dates back to 1604 when the first part of the novel ’The Ingenious Gentleman Don Quixote of La Mancha’ was published.