It’s a grading system at many Post Secondary facilities. Imagine scoring 70% on an exam and still ending up with an “A” – sounds too good to be true, doesn’t […]
The helicopter was invented by the Chinese in the 4th century, more than a 1,000 years before Leonardo da Vinci. It was called the Bamboo Dragonfly and could fly 25 feet (7.6 m) up and down. The first modern helicopter was invented by the French.