The phrase "rule of thumb" is derived from an old English law whichstated that you couldn't beat your wife with anything wider than yourthumb.

Erosion at the base of Niagara Falls (USA) undermines the shale cliffs and as a result, the falls have receded approximately 7 miles over the last 10,000 years.

There are more doughnut shops per capita in Canada than in any other country.

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