Question 1
In 1970, the metric system became the official measurement system in Canada.
Question 2
Metric and SAE wrenches are interchangeable.
Ask unlimited questions for free
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
The horizontal fraction bar was introduced by the Arabs.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.
For a complete list of videos, visit our video library