Concerns have recently been raised about the level of protection that sunscreens provide against the UV rays. The purpose of this experiment is to examine the value of sunscreen in lowering the intensity of the sun’s UV rays. The instructor purchased different brands of sunscreen lotions: name brands and generic brands. Based upon the price, the class expected better sun protection from the more expensive sunscreen lotion. The group visited several places to collect data, such as Hilton Head Beach and Morehouse College campus. At Hilton Head Beach, the researchers received tons of literature. The group even interviewed a young lady about the sun lotion she uses. Researchers concluded that more expensive is better for the skin and not for sun block protection.
Introduction
The light released by the sun consists of three frequency bands of radiation: infrared, visible and ultraviolet. Out of the three frequency bands, the ultraviolet light is damaging to most humans. Ultraviolet (UV) radiation divided into three categories: UVA, UVB, and UVC. UVA radiation passes through the skin without burning the surface layers. These rays can penetrate to a depth of 0.04 inches and causes damage to cell membranes and the immune system. UVA radiation has been linked to skin cancer, early aging and wrinkling of the skin. UVB radiation is responsible for the painful red burn people get after a long period of exposure to the sun. UVB rays also cause skin cancer and damage to the cornea and lens of the eye. The third category, UVC radiation, is generally absorbed by the Earth’s atmosphere and is not considered harmful.
The benefit of doing this experiment is to learn which sunscreen best protect human skin from harmful UV ra...
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... Boat 395.184(2) 3.95184E-07 7.591400462*1014 5.03309851*10-19 BLS
Topic Sun 382.56925(4) 3.82569E-07 7.841717545*1014 5.19905873*10-19 TS
Blank 379.5617143(7) 3.79561714E-07 7.903847066*1014 5.2402506*10-19 None
80 minutes
Names Averages Wavelengths Frequency Emission Line Symbol
Ocean Potion 394.9475(2) 3.949475E-07 7.595946297*1014 5.03611239*10-19 OL
Banana Boat Spray No Peaks BS
Aveeno 395.0265(2) 3.95027E-07 7.594427209*1014 5.03510524*10-19 AL
Coppertone 394.9475(2) 3.949475E-07 7.595946297*1014 5.03611239*10-19 CL
Neutrogena 385.4216(5) 3.85422E-07 7.783684153*1014 5.16058259*10-19 NL
Coppertone Sport No Peaks CSS
Banana Boat 395.0265(2) 3.95027E-07 7.594427209*1014 5.03510524*10-19 BLS
Topic Sun 382.56925(4) 3.82569E-07 7.841717545*1014 5.19905873*10-19 TS
Blank 379.5617143(7) 3.795617E-07 7.903847066*1014 5.2402506*10-19 None
In World War II the soldiers used a jelly-like substance, called “red vet pet” to prevent themselves from the sun. Finally, Benjamin Green combined this substance with cocoa butter and coconut oil, which created the new line of Coppertone suntan cream. Coppertone has come a long way, to make their product better. As they changed the product, the advertisement changed over the years to appeal to the audience. Although both of these advertisements are being presented to get people to buy Coppertone, the modern day advertising is more appealing than 1944 advertisement; the modern day advertisement has a better focal point, action, general feeling and mood, selection of elements, and audience.
Experiment #1: The purpose of this experiment is to investigate the effects of baking soda and light intensity on the rate of photosynthesis of green spinach leave through the observation of floating disk.
Marks, R., P.A. Foley, D. Jolley, K.R. Knight, and J. Harrison. 1995. The effect of regular sunscreen use on vitamin D levels in an Australian population: results of a randomized controlled trial. Archives of Dermatology 131: 415-421.
Tanning can be harsh to your skin. The light coming from the sun contains different wavelengths of ultra violet (UV) waves. The two types of waves concerned about are UVA rays and UVB rays. UVA rays are long waves that cause more damage than a UVB ray. UVA rays penetrate deeper into your skin and cause tanning (“The Dangers of”). More and more exposure to UVA rays can cause permanent damage ...
Levine, Jody A., MD, Michael Sorace, MD, James Spencer, MD, and Daniel M. Siegel, MD. "The Indoor UV Tanning Industry: A Review of Skin Cancer Risk, Health Benefit Claims, and Regulation." Special Article 53.6 (2010): 1038-043. Web. 14 Apr. 2014.
Informing you on a everyday thing some girls do, which is tanning. Two main questions you have to ask yourself is it healthy? And will it cause skin cancer ? Well to answer both of those questions you can get skin cancer, and it is healthy for you. Only some parts of it is healthy though, not all of it. And thats what we will be explaining in this paper today. We both do tan so we’re not against it and see the good thing about tanning. Not everyone has to be on our side, some people may like tanning naturally better to begin with.
Imagine you’re leaving for spring break in two weeks, and you’re the palest of all your friends. Its way too cold outside to try and tan, and a spray tan won’t last. You don’t want to be super pale on the beach next to all your tan friends, so against what a lot of people say, you go to a tanning salon and try a tanning bed. But, it’s so confusing why everyone says this is so bad for you when there are so many safety regulations for tanning beds. This is very important to think about because everyone makes tanning in a tanning bed sound so scary, but there are many reasons why it is just as dangerous as rays from the sun.
Kaur, M., MD. “Tanning Booth Junkies”. Journal of the American Academy of Dermatolody.56:375-9(2007). Web. 15 Mar.2010
The FDA says that “unprotected exposure to harmful UV rays break down the collagen and elastin fibers in healthy young skin, and cause wrinkles and loosened folds” The FDA proves that indoor tanning can cause premature skin ageing and can affect the appearance from it. There are few ways to treat damaged skin, the ways to treat it would be through Chemical peels, dermabrasion, and skin Fillers. The efforts to fixing skin after it's damaged it is hefty. After spending so much time and money of damaging skin, it is just as costly to get it
UV radiation causes significant damage to human skin, in the form of sunburns, aging, skin cancer, and nonmelanoma tumors. Human skin damage is primarily a result of tanning. The
Indoor tanning is a controversial topic and has even been the subject of lawmakers in many states for at least the past ten years. Tanning is a symbol of “health and wealth” for many living in the developed countries and yet it is associated with one of the most deadly cancers known to human beings because of the chemical reaction the Ultra Violet (UV) rays at the cellular level. The research is clear that the use of indoor tanning beds can be dangerous and yet, there are some benefits of using indoor tanning beds. Research has also shown that exposure to UV radiation contributes to the synthesis of Vitamin D in the body, it also can positively boost mood, can heal certain types of skin disorders and may also be helpful for those suffering from fibromyalgia. The indoor tanning industry should make known the risks of using a tanning bed known before selling their use to people. Before one makes a decision to use a tanning bed she should be well informed of the risks and benefits.
Anyone can attest to the positive effects of sunlight, but it doesn’t just help the plants grow, it is necessary to us as human beings. Its effects go far beyond just brightening your mood or giving you a beautiful day at the beach. The amount of sun we are exposed to can have profound effects. Sunlight is necessary for good mental health. It keeps our hormones balanced, affects our daily motivation, and changes our perspectives on the different aspects of life all together. Furthermore, it has a dramatic effect on us physically by keeping our immune system at its best and giving our bodies essential vitamins that we could not live without. The main point is sunlight has a direct effect on a person’s mental wellbeing, physical health, and overall quality of life
Probably the most commonly used word by your dermatologist, your beautician, your pharmacist or just the girl next door, and for a good reason. The sun’s damaging UV rays can single-handedly destroy your skin over time and in some cases even cause irreparable damage. It will burn your skin, dry it out, destroy collagen fibers and predispose you to cancer. Whether it’s a scorching sun or not, whether you are outdoors or not, sunscreen is an everyday must-wear. You have a choice.
An Experiment to Investigate the Effect of Light Intensity on the Rate of Photosynthesis. Introduction Photosynthetics take place in the chloroplasts of green plant cells. It can produce simple sugars using carbon dioxide and water causing the release of sugar and oxygen. The chemical equation of photosynthesis is: [ IMAGE ] 6CO 2 + 6H20 C 6 H12 O 6 + 6O2 It has been proven many times that plants need light to be able to photosynthesize, so you can say that without light the plant would neither photosynthesize nor survive.