Sunlight

light can be dangerous for humans in many ways. It can be harmful to our skin and eyes. We need to protect our eyes and skin from strong direct UV light of sun. The problem that I would like to discuss is about the effects of the UV light on skin. Sunlight can cause skin cancer. Skin cancer is one of the most common cancers in the world. The most dangerous skin cancer type is called melanoma. It is a cancer of pigment(color)-producing skin cells. It is caused by both genetic risk factors and UV…

Trip to Hundred Islands In the summer of my third grade, when I was eight years old, I remembered when my parents told me that we were going to take a trip to Hundred Islands National Park in Pangasinan, Philippines. I said “ Are you being serious?” I was shocked, but excited when they told me. I couldn’t sleep that night, I was too hyped and thrilled. I thought it was quite spontaneous of them to decided to go to this trip since they were so occupied with work. The night before, I researched…

Indoor tanning has become increasingly popular. Not knowing the risk, people of all ages go to places with tanning booths to lay in and bake. When people go to the tanning beds they have a great chance of getting skin cancer, premature aging of the skin, eye problems, and all different kinds of diseases. Tanning beds should be banned. Although people think tanning beds are harmless, tanning beds are the main source of skin cancer and many other health problems. Tanning beds are not good for…

that offers 100% protection against ultra-violet rays” says Dr.Duker, director of the cornea surgery service at the Massachusetts Eye Infirmary(4). This shows that most people can afford to buy sunglasses that will protect their eyes from extensive sunlight damage. $40 is almost nothing compared to the cost of cataract surgery, which is done after one has developed cataracts. The surgery involves the doctors inserting a new lens into a patient’s eye, where the other one was distorted. A study…

high temperature called as calcinations process. The usage of IR reflectance pigment for roof and construction materials increases because of it’s a good weatherability property. In urbane area roof design is major source of heat absorption from sunlight. The amount of IR reflection depends on roof structure, type and colour of roof coating. Nickel manganese ferrite blacks, iron chromites brown-black, Pigment Blue 28 Pigment Blue 36, Pigment Green 26, Pigment Green 50, Pigment Brown 33, Pigment…

Sunscreens are products which help protect the skin by preventing the sun’s ultraviolet (UV) radiation from reaching it. There are two types of ultraviolet radiation UVA and UBA that can damage the skin and can contribute to skin cancer. Different sunscreens vary in their range to protect against UVA and UVB. Ultraviolet (UV) radiation is part of the electromagnetic (light) is received by the sun and passed down to the earth. It consists of wavelengths shorter than visible light therefore making…

refractions using colored transparent materials. Content: Natural sunlight: collected from http://www.racheous.com/transform-your-play/light-play/ -shadows of the sunlight will bring the reflective qualities of a watch, disco ball, CD, or mirrors giving various colored shadows. -Sunlight near colored transparent materials will bring coloured shadows. Teacher Intention: Students will be introduced to the concept of natural light energy(sunlight) and will have chance to see the effect of…

This radiation intensity is called as the solar constant or air mass zero (AM0) radiation. Solar intensity at the earth’s surface Sunlight will reduce at least thirty percentage when it go through the earth’s atmosphere. The most important parameter of determining the total incident power is the length of the light through the atmosphere. The ratio of actual path to this minimum value…

Xeroderma Pigmentosum (XP) is an autosomal recessive disease that impairs the ability of DNA repair in cells that are damaged by ultra violent light. XP is rare and roughly affects 1:250,000 Americans a year1. Unsurprisingly, early in a patient’s childhood they have extreme sun sensitivity, which gravely increases their incidence of basal cell carcinoma, squamous cell carcinoma, as well as benign and malignant melanomas. Before affected children reach the age of 20 years old, their incidence of…

The Secret Of Youthful And Radiant Skin YOUR SKIN IS DELICATE There are quite a few factors that may indicate the pace at which the skin decays.There are factors like exposure to direct sun rays and pollution. It could also be your smoking habits or your daily food habits ! The most dominant of these are the genetic or hereditary factors like your skin texture and type. Usually, fair skin turns crinkly more rapidly than wheatish or dark skin as they are shielded by high amounts of lipids and…