Today's food travels thousands of miles from farms before it reaches consumers in urban areas. Why is this the case? Is this a positive or negative trend? Give reasons for your answer and include any relevant examples from your own knowledge or experience. Write at least 250 words. Task 2...
workers open the factory doors and use fans to draw air inside to cool the facility. Conversely, if it gets too chilly, they turn on more of the overhead lights to heat the inside air. (Seattle's relatively mild climate enables these measures to work just...
1. Earn miles or points by flying your preferred airline Sign up for an airline loyalty program (joining is free). Every time you fly the airline, you will earn miles or points that can be redeemed for free flights. » Learn more: How do airline miles work? The number of miles you...
Air Canada’s Captain Doug reveals what’s consumed in the cockpit, what aircrew eat during layovers and his tips for staying hydrated at altitude. Book Flight Plan for your next trip. FlyAir Canada. Book Now
First, we should encourage students to take the bus or walk to school. Taking the bus can help cut down air pollution. Walking is healthier, too. Next, what should parents do if their children have to come to school by car? I think their parents should park their cars far away from ...
More people are flying than ever before, and the increase in air traffic has created a bottleneck at airports around the world. If you've flown lately, you've witnessed the congestion and flight delays. The Federal Aviation Administration (FAA) warns that if the industry doesn't make changes...
Anumberofpeopledon'trealisethatturningontheairconditioningactuallyreducesthenumberofmilespergallonofyourcar.Thereisenergyusedinremovingtheheatandmoisturefromtheairinthecar,andthisconsumespetrolbecauseoftheextraengineload. Airconditioning'smainprinciplesareEvaporationandCondensation,thenCompressionandExpansion.Tothe...
compressed air is ignited in a combustion chamber. The hot exhaust is forced over a turbine that spins to mechanically drive a shaft. This power can then be used to spin electrical generators.Diesel-electricengines work much the same way, yet use a direct drive system rather than a turbine....
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Longest distanceOver 300 miles (483 km) Highest altitudeOver 18,000 ft (5,490 m) Read More Lots More Information Related Articles How Gliders Work How Airplanes Work How Concordes Work How Space Shuttles Work How Flying Cars Will Work How Air Taxis Will Work How the Airbus A380 Works ...