Morning blues: Morning sickness is not just experienced by pregnant women, but can be caused by a number of factors in all people Sleeping itself can also be the cause of morning sickness. People who suffer from sleep apnoea, a condition that can cause you to stop breathing during the night, can wake in the morning feeling unrested and nauseous.
The History of Safety Glasses. Safety glasses should be worn by personnel in manufacturing, construction, medical, some service industries and sometimes sports. Although eye injury is a higher risk for these individuals, many people do not wear eye protection for one reason or another.
Production of slag glass originated in late-19th-century England, where glass manufacturers are thought to have added slag from iron-smelting works to molten glass to create a range of effectsâfrom tortoiseshell to marbling.Among other uses, slag glass was a popular material for lampshades.ne of the first glass foundries to produce slag glass (although it was not called that at the time) was the Gateshead, England, firm of Sowerby, which patented its recipe for purple malachite glass in 1878.