The set {0,1,2} is closed, but is not regular closed, because its interior is Ø, so the closure of its interior is Ø.

The flames melt into each other like antishadows, climb atop the backs of old papers and twigs and start to burn.

One–two–cha–cha–cha Three–four–cha–cha–cha

The Cairngorms national park has some of Britain’s harshest weather and the heaviest snowfall in Scotland, creating snowfields that stretch to the horizon. Lochs, lochans and waterfalls can be frozen solid.