Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.
Did you know?
Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.
Did you know?
Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
Did you know?
Women are 50% to 75% more likely than men to experience an adverse drug reaction.
Electrons Are Shared in Covalent Bonds
Spiral Galaxies (Nearly Face-on Views)
Change in American Gender Attitudes, 1977-2006 Over recent decades, views of gender roles have beco
Anterior and lateral views of breast anatomy
Conversation Norms "دول الخليج عادة إلقاء التحية عن طريق"
Super Mario kid drawing