Mohammed Abdul-Aziz’s presentation was about substance abuse; he dug deep into the subject; he talked about from where they came from, how to make them and he added which country had the most valuable drugs such as opium; also he exposed the drug dealers who sold different kinds of drug at different prices. He talked about the consequences which a lot of people who are hooked up in these kinds of drugs suffer from: skin cancer, lung and heart diseases. He also told us the positive side of one of the drugs called marijuana (weed), that it cures a certain kind of illness and the kind of people who use weed are actually seniors to help them go to sleep and a lot of teenagers also tried at least to get out of their normal life and set them to the world which they always imagined where nobody can annoy them. Overall Mohammed’s presentation was excellent; he said that a lot of companies are trying to offer cigarettes for money but Mohammed said it looks like it’s all for greed and money that a lot of dealers are trying to take from us; also he answered the students' questions very well in a good and educational way.
Monday, May 28, 2012
Tuesday, May 22, 2012
Wednesday, May 2, 2012
Reflection Of Khalid's Presentation
Today I saw and learned about Khalid Hasan’s presentation about the importance of valves that are being used in factories and the information about their source. Khalid talked about their purpose and how many types, shape and sizes of valves and how every piece is unique and how every part controls a certain amount of water and pressure, controlling the fluid’s direction (horizontally and vertically) and every valves actuates air fluid magnetic force. Khalid’s presentation about the subject seems very hectic but he broke it down to the simplest form, by naming and defining different valves; one of them is called Gate Valve and another one is called Ball Valve. Both are small and the Gate Valve advantage helps the commitment of water flow and it doesn’t allow water going the other way around. He told us the disadvantage of a Ball Valve is that it doesn’t handle a big amount of pressure. He added what the valves are made of; it could be from copper to gold. The purpose of the valves was to purify and launch the selected liquid through the pipes. At the end of the presentation he answered the student’s questions very well and in a logical way.
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