The Strongest Material Known To Man

401

Graphene is the strongest material known to man. It’s 200 times stronger than steel. It would take an elephant to break a sheet as thin as a piece of paper.

1,700 Words

214

William Shakespeare is credited with the invention or introduction of over 1,700 words that are still used in English today.

The World’s Longest Road

517

The world’s longest road to walk is from Cape Town, South Africa to Magadan, Russia. It’s 22,387 km/13911 mi long. Along the way, you pass thru 17 countries, 6 time zones, & all seasons of the year.

Less Gravity In Canada

398

Large parts of Canada have less gravity than the rest of the earth. This phenomenon was discovered in the 1960’s.

YakhchÄl 

418

As early as 400 BCE, Persians engineered ancient refrigerators called YakhchÄl. They enjoyed ice in the heat of the desert.