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.
View full size image. Constructed at Saqqara about 4,700 years ago, the Step Pyramid of Djoser was the first pyramid the Egyptians built. Djoser, sometimes spelled Zoser (though he was actually called Netjerykhet), was a king of Egyptâs third dynasty. The planning of the pyramid has been attributed to Imhotep, a vizier who would later be deified for his accomplishments.