Most healthy diets include fruits, vegetables, fish and whole grains, and limit unhealthy fats. While these parts of a healthy diet remain tried-and-true, subtle variations or differences in proportions of certain foods may make a difference in your risk of heart disease.
Zyklon B (. [tsykloËn ËbeË] ; anglicized /ËzaÉªklÉn ËbiË/ or translated Cyclone B) was the trade name of a cyanide-based pesticide invented in Germany in the early 1920s. It consisted of hydrogen cyanide (prussic acid), a warning eye irritant, and one of several adsorbents such as diatomaceous earth.
A simple historical timeline of eyeglasses starts with their invention, believed to be between 1268 and 1289 in Italy. The inventor is unknown. The earliest eyeglasses were worn by monks and scholars. They were held in front of the eyes or balanced on the nose.