Wednesday, April 14, 2010
Sunday, April 11, 2010
Saturday, April 10, 2010
Wednesday, March 3, 2010
How do jets fly? Jets can't flap their wings like a bird but jets do have large wings that have a special shape, so jets can fly without flapping. Jets have engine to give them power. A jet engine pulls air into itself then rushes it out the back. This pushes the jet through the air. This is call thrust. This thrust causes air to flow quickly over the wing. The special shape of the wing makes the air go faster over the top of the wing. The faster air going over the top creates low air pressure. The air going under the wing is slower and has high air pressure. This is called lift. Lift makes the plane go up. The weight of the plane is what pulls the jet back down. If a jet fly, the lift must be greater than the weight.
Fan: The large spinning fan sucks in large quantities of air. Most blades of the fan are made of titanium.
Compressor: The compressor squeezes the air that enter it into progressively smaller area, resulting in an increase in the air pressure.
Combustor: In the combustor the air is mixed with fuel and then ignited. There are as many as 20 noozles to spray fuel into the airstream.
Turbine: The high-energy airflow coming out of the combustor goes into the turbine, causing the turbine blades to rotate. The turbines of the jets spin around thousands of times.
Nozzle: The nozzle is the exhaust duct of the engine.This is the jet engine part which is usually produces the thrust for the plane.
Mixer: Combine the high temperature air coming from the jets engine core with the lower temperature air that was bypassed in the fan. The mixer helps to make the engine quieter.
Saturday, February 27, 2010
Hmm.....I also like to eat noodles because the price of noodles is cheaper and it takes only a few minutes to cook. But, it is not good for our health to have noodles daily or very often. We should consider with what ingredients the noodles are made up. If noodles are eaten in proper portions it is not harmful.
Avoid the uses of ajinomoto which is not good for our healths. We should always make our noodles nutritious. As an example, we can put other material in our noodles like eggs, chicken or meat and lots of vegetables like beans, carrot or mushroom. So, our noodles will become nutritious.
Enjoy your noodles with healty ingredients....gudluck =)
Wednesday, February 24, 2010
This blog will be fullywritten in English Language. Hopefully, you will be satisfied on my post. To all my friends..DBS 4, gudluck 4 your final examination..I wish all of you will get excellent result.