Vancouver: Annual Weather Averages. August is the hottest month in Vancouver with an average temperature of 18Â°C (64Â°F) and the coldest is January at 4Â°C (38Â°F) with the most daily sunshine hours at 13 in July. The wettest month is November with an average of 200mm of rain.
Grinding wheels are made of natural or synthetic abrasive minerals bonded together in a matrix to form a wheel. While such tools may be familiar to those with home workshops, the general public may not be aware of them because most have been developed and used by the manufacturing industry.
Based on diagrams on ancient clay tablets, the earliest known use of this essential invention was a potters wheel that was used at Ur in Mesopotamia (part of modern day Iraq} as early as 3500 BC. The first use of the wheel for transportation was probably on Mesopotamian chariots in 3200 BC.