While gale-force winds, feet of snow, and blizzard bombardments can plunge a winter wonderland into a life-threatening deep freeze, there is an upside to the wintry weather: breathtaking images of the partially frozen Niagara Falls.

Rather than deter tourists, it seems the icy waterfalls are getting people out of their blankets and into their jackets to view the scene.

“The attention the Falls is receiving is bringing a crowd to view them in their majestic, winter splendor!” said Michelle Blackley, communications & community relations manager for the Falls.

The chilly conditions transformed the gush of water into a carpet of snow when temperatures dropped to -8.8°C (16°F) on Wednesday morning.

https://www.youtube.com/watch?v=7iuZuVqf7jE

Usually icebergs are white because they are made of compressed snow, which reflects all frequencies of visible light. However, if high pressures squeeze the flakes together, or sea water freezes, the gaps between the snowflakes disappear.

Now and then, an iceberg flips over, allowing us to see what has happened to its lower reaches. Most often this occurs when the iceberg has just calved, but occasionally it transpires later, for example in a storm.

When visiting Antarctica at the end of last year, filmmaker Alex Cornell came across the aftermath of one such event.

Cornell has also provided this comparison of an ordinary iceberg set against an upturned one.

English learners often confuse frost and snow.

Snow falls from the sky, but frost is water vapor that freezes on the ground, leaves and on the outside of buildings.