Lens Discussion Research Paper Example | Topics and Well Written Essays - 1000 words - 1

Lens Discussion - Research Paper Example The word lens was derived from a Latin word lentil since the shape of lentil has similar attributes to double-convex lens. According to Whitehouse (1999), it is believed that the oldest lens belonged to Ancient Assyria dating back 2700 years ago. Whitehouse also illustrated that the work of David Brewster of making a proposal of starting fires through a magnifying glass that concentrates sunlight, regenerated to evolution of the lens. Other historical records about the lens were retrieved in ancient Greece in a play called The Clouds by Aristophanes by mentioning about the burning glass. This statement referred to the biconvex lenses that were used to produce fire through creating a common focus of the sunrays. The work of Pliny the Elder also expressed the usage of burning glasses in the Roman Empire, especially after providing the descriptions of magnifying effects of the glass that was filled with water. Glick (2005) shows that lenses were widely used in Europe, especially after the invention of spectacle in Italy. This invention created a progressive nature of optical industry to use lenses, where other Western nations expanded the idea including Venice, Florence, Germany, and Netherlands. However, the optical industry created a room for invention of other technological advancements that changed the experimentation algorithms. For example, between 17th and 18th Centuries became a major progress for lens usage after microscope and telescope were invented. This caused the opticians to the draw board and came up with constructive lenses that formed the spherical figures in their surface and varying features of curvature. This led to the production of achromatic lens that is more compounded by Chester Moore Hall in 1733 at England. This led to improvement of experimental operations in biological, physical, and chemical analogies. Currently, lenses are spherical in nature, where both longitudinal

Personal consumption journal Essay Example | Topics and Well Written Essays - 750 words - 1

Personal consumption journal - Essay Example Prior to my entering the mini mart, I knew I wanted a Gatorade. Evidently, neither did I happen to stumble across it inside the store nor did I hear somebody whisper to me on the benefits of drinking Gatorade after a movie trailer. Shopping experience: I really didn’t take much time in the store I just the Gatorade paid for it and left, if you even ask me how many people were in there or the shirt color of the attendant I wouldn’t tell. Reason for purchase: Where I work, I am quite limited to what I can buy to eat depending on the day. On days when I am alone in the office, I cannot leave the office premises to buy food. In this case therefore, I am limited to restaurants that deliver fast foods. This has proven to be extremely expensive; therefore do it regularly. The meal consisted of chow mien, and 2 entrees with soup. I choose this because it was the most appropriate for the money I had at the moment. I could also eat half of the meal then half later. Shopping experience: It happened that I had to pronounce the meal to the waitress who seemed amused and didn’t understand why. She tried to pronounce the name correctly in Chinese accent and understood the reason for her amusement when I said it correctly she smiled and said good, the conversation had turned fun and I was just laughing as she taught me how to pronounce. Not a bad shopping experience. Reason for purchase: I really needed the face wash. I have always loved the Nivea brand for its high quality products. I was more inclined to purchasing the face wash as it was cheaper by 1$ and I thought I would save for other reasons especially buying lunch. I would have selected Olay Essentials Refreshing Face Wash which is cheaper and went at 3.9$, but Nivea fulfills my need. Shopping experience: The attendants were great they were willing to explain about the magic of the different soaps on one’s skin. I happened to spend more