I know there's already a forum for sore and tender scalps but naturally, I can't find it! I needed to register before posting...so it's GONE. For about a year my scalp has been so sore and so tender that it hurts 24 hrs a day. At first I thought perhaps I was allergic to my shampoo so I changed brands. No improvement. Next I wondered if my shower was too hot.
Although small in size, the eye is a very complex organ. The eye is approximately 1 inch (2.54 cm) wide, 1 inch deep and 0.9 inches (2.3 cm) tall. The tough, outermost layer of the eye is called the sclera. It maintains the shape of the eye.
In a dark. place, the pupil of the eye becomes wide open, so that it can collect. maximum light. The circle of an open pupil in the average human. eye has a diameter of about 0.7 cm and a surface area of 0.38465. cm2. In comparison with the lens of the eye, the light-collecting. surface of the Hubble telescopeâs objective has a diameter 357.14. times larger than that of the eye.