Foam

Introduction: The NRC, Noise Reduction Coefficient, is the average of the levels of absorptiveness in a material at four different frequencies; 250, 500, 1000, and 2000 Hz. If a material has an NRC of 0, it will reflect sound. If it has an NRC of 1, it is perfectly absorptive. These numbers can be converted into a percentage, therefore ranging from 0% to 100% in absorptiveness. (Noise Reduction Coefficients (NRC) Ratings for Common Building Materials & Products, n.d.) In order to soundproof…

lack true meaning because they do not have true feeling behind them. Neruda shows the speaker's life becomes crumbled and destroyed due to lack of happiness when the speaker describes the image of the world falling apart around him: "a breaking up of foam and of quicksand, /a rustling of salt withdrawing, /the grey cry of sea-birds on the coast" ("The Poet's Obligation" 26-28). This passage comes from the lines following the last quote and emphasizes the idea that the speaker's life has fallen…

There are the many unique and peculiar gods and goddesses in Greek mythology. And there’s the gods that everyone knows about; the Olympians. This group of gods consists to (but not limited to) Aphrodite, Apollo, Ares, Artemis, Athena, Demeter, Dionysus, Hades, Hephaestus, Hera, Hermes, Poseidon, and Zeus. These gods have many diverse aspects, which will be discussed about each entity. Aphrodite is the goddess of love, beauty, and desire. She is the wife of Hephaestus but also had intimate…

green skin she imagined when she was younger. As the face mask dries, she squeezes a dollop of toothpaste onto her bright blue toothbrush. The taste of the cool peppermint floods her mouth as the bubbles surround her taste buds. She spits out the white foam and gargles water to rinse her mouth. She smiles at herself in the mirror and laughs at the contrast of her white teeth and the dark green face mask. She looks at the frizzy and knotted mess cascading down her back, and rolls her eyes. She…

Happy #1 I bought an Oscars Mattress and I am completely happy with my purchase. The quality of this mattress is exactly as promoted on the site. For the first time in years, I could tell I had a truly comfortable and relaxing sleep. Although at the beginning, I wasn’t convinced of the benefits of this mattress, after I first tried it, I knew this was the best choice I could ever make for my bedroom. I highly recommend this mattress to anyone who wishes to feel as if they would sleep on a cloud.…

Optimal comfort in your house has many influences on your life. Last year, I bought a new house with my family (the one we are living right now,) and the early days was a "bad time" for us. I mean, we moved in during the last winter. It was freezing like in a commercial freezer. Well, I made a mistake when buying the house (I was a first-time buyer.) I mean, I believed what the landlord told me about house's condition. I didn't hire a home inspector, sadly. Well, the early months in the house…

months to take human beings to Mars, and in that time new automation would be necessary to ensure the survival and security of the astronauts. Many everyday items have been created by NASA, like prosthetic limbs, solar panels, cordless tools, and memory foam, among many other things. In order to send people to Mars and keep them safe on the journeys to and fro, technologies would be invented that may be repurposed to make life here on Earth a little easier as…

According to Le Postolloc (2000), “Benefits of co-treatment aren't limited to the patients, by working together, PTs and OTs can gain a broader perspective on treatment and a better understanding of each other's role on the rehab team.” Client treatment time can also be reduced with co-treatment, which is beneficial for a child with a short attention span. It is also helpful to have an additional set of hands to ensure safety. During the co-treatment the OT will focus on assessing upper…

Hydrogen Cyanide Hydrogen Cyanide (HCN) is an extremely poisonous liquid discovered in 1782 by Carl Scheele, a Swedish chemist. HCN is very toxic because it stops cells from using oxygen properly thus causing death. Although HCN is a great solvent for salts, it cannot be used due to its high toxicity. Even though it is general stable, it has the capacity to combust in the company of basic substances such as ammonia or sodium cyanide. What is its structure? The structure of Hydrogen cyanide is…

Australia’s climate varies largely with temperature extremes reaching anywhere from 420C to 30C throughout the year. (Weather Zone, 2014) During these extremes in the weather thermal comfort is the condition of mind to which the body finds the temperature satisfactory, should be achieved. The temperature of a household can be changed through the uses of air-conditioning, heaters and fans which can cause energy prices to skyrocket. Through the use of insulation households can achieve thermal…