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Grp 3( Hashvand, Cavin, Xi Yuan, Bernice)

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Grp 3( Hashvand, Cavin, Xi Yuan, Bernice)

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Applications from textbook
Exposures to a small amount of UV Radiation is good for our health, as it increases the production of Vitamin D in our bodies. UV radiation is also used to treat babies with certain medical conditions.
UV light is an environmentally friendly method of disinfecting medical equipment.

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Exposure to UV rays can cause premature aging of the skin and signs of sun damage such as wrinkles, leathery skin, liver spots, etc*. UV rays can also cause eye problems. They can cause the cornea (on the front of the eye) to become inflamed or burned.

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UV rays are so powerful, hospitals use them to disinfect medical equipment. The high doses of UV radiation kills all living cells. Elephants coat themselves in mud to protect against the sun. Scorpions glow under UV light

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Infrared radiation applications: can promote local blood circulation and reduce muscle tensions. Examples of traditional medical applications of infrared radiation include the relief of muscle pain and tension, as well as the treatment of autoimmune diseases or wound-healing disorders.

Infrared radiation harmful effects: Prolonged exposure to IR radiation causes a gradual but irreversible opacity of the lens. Other forms of damage to the eye from IR exposure include scotoma, which is a loss of vision due to the damage to the retina. Even low-level IR absorption can cause symptoms such as redness of the eye, swelling, or hemorrhaging

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application : Most applications of X rays are based on their ability to pass through matter. This ability varies with different substances; e.g., wood and flesh are easily penetrated, but denser substances such as lead and bone are more opaque.

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harmful effect : While X-rays are linked to a slightly increased risk of cancer, there is an extremely low risk of short-term side effects. Exposure to high radiation levels can have a range of effects, such as vomiting, bleeding, fainting, hair loss, and the loss of skin and hair.

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fun fact about x-ray :
The ‘X’ means unknown 🤭

Roentgen named his discovery X-strahlen—strahlen being German for “beam” or “ray,” and “x” being used in mathematics to indicate an unknown quantity.  Even though we now know much more about how x-rays work, their name has retained a sense of their original mystery. The rays have also been called “Roentgen's rays,” and the images they produce are sometimes known as “roentgenograms.”

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Applications: Sterilise medical equipment and food, as tracers in medicine and in oncology, to kill cancerous cells.

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Harmful effects: The extremely high energy of gamma rays allows them to penetrate just about anything. They can even pass through bones and teeth. This makes gamma rays very dangerous. They can destroy living cells, produce gene mutations, and cause cancer.

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Fun Fact: Gamma-rays have the smallest wavelengths and the most energy of any other wave in the electromagnetic spectrum.

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This is our slides on infrared radiation

https://docs.google.com/presentation/d/1-sFpkay2LyzmOJDfbKRJGC0q_jf-uBOp87hlAnsKf5Q/edit

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Application: visible light is light that we can see. During the day,plants rely on energy provided by visible light to make sugars using carbon dioxide and water through photosynthesis. Light allows us to carry out our daily activities.

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Fun facts:visible light waves are the only electromagnetic waves we can see. We see these waves as the colours of the rainbow. Each colour has a different wavelength. Red has the longest wavelength and violet has the shortest wavelength.

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Harmful effect:It can exert various biologic effects such as erythema, pigmentation, thermal damage and free radical production. Additionally, exposure can cause or exacerbate photodermatoses such as solar urticaria, chronic actinic dermatosis (CAD) and cutaneous porphyrias.

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https://docs.google.com/presentation/d/1-v3GZE3NamdxlpKeBty_gGib-wF0jF1QT7ZsIkyXMdk/edit

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Application : During the day, plants rely on the energy provided by the visible light to make sugar through photosynthesis. Visible light also enables us to see things around us.
Harmful Effect ( 1 ) : Visible Light can cause chemical changes in some materials like paper, cloth, leather, photographs and media. This results in the deterioration of their quality and is also why flash photography is disallowed in some museums or art galleries
Harmful Effect ( 2 ) : Visible light may cause light pollution when there is too much artificial light in the environment, typically caused by cities. This negatively impacts living things that depend on Earth’s cycle of day and night to carry out life-sustaining activities. One of which is migration and artificial light disrupt the migration of animals, causing them to migrate too early or too late. This can be fatal to animals as they may miss the ideal climate conditions for nesting and having an adequate food supply.
Fun Fact : Other interesting uses of Visible Light include Li-Fi, underwater communications, vehicle to vehicle communications and robots which serves us

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Application: Gamma rays are used in the nuclear industry for medicinal and sterilization and disinfection.

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Harmful Effects: Gamma rays is a type of radiation that is able to pass through nearly anything. They can destroy living things and also cause cancer.

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Fun Fact: Doctors use a “Gamma Ray Knife” that can destroy the cancer cells that need to be destroyed.

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Fun fact: they are born in the chaos of exploding stars, the annihilation of electrons and the decay of radioactive atoms.

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Application: use for killing bacteria, creating fluorescent effects, treat skin diseases/cancer, lights in lamps, suntanning, lights in photography.
Harmful effects: causes premature aging of skin, Sun damage(eg, wrinkles), eye damage. Excessive of UV inhibits the growth processes of almost all green plant. It also causes Ozone depletion - loss of plant species, reduces global food supply.
Fun Facts: Many fruits, flowers and seeds stand out more strongly from the background in ultraviolet wavelengths as compared to human colour vision.