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Can using a mobile phone on a plane really cause it to crash [Copy link] 中文

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Post time 2011-4-23 14:41:30 |Display all floors
Mobiles on planes
Yes, using your mobile phone mid-flight really could cause the plane to crash. The reason the Civil Aviation Authority, the British aviation regulator, prohibits their use on planes is the signal can interfere with the aircraft's communication and navigation systems. What happens is that, the more energy the phone uses to communicate with the mobile network 30,000ft below, the more likely its signal is to interfere with the plane's electronics.

What we are told less often is that the chance of that interference causing the plane to crash is minute - something you may have guessed the last time you furtively switched of your phone mid-flight, having forgotten to do so earlier. Some airlines are working on installing an independent network on the plane so your mobile can get a signal with minimal effort, reducing any risk. In the meantime, though, the authorities would rather err on the side of caution, so the rule stands.

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Post time 2011-4-23 16:58:47 |Display all floors

Do you get drunk quicker onboard

Yes. There is less oxygen in the air at high altitudes, so on a plane your body is already slightly oxygen-deprived. Alcohol (as well as the prescription drugs some people take to reduce the stress of flying) inhibits your ability to use the oxygen in your blood, which contributes to the feeling of drunkenness. Combine the two factors, and two or three drinks on a plane can have the same effect as five or six on the ground


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Post time 2011-4-23 17:01:47 |Display all floors
Airline food is cooked, packaged, frozen, shipped and then reheated again onboard. In the process, as you may have noticed, it often loses most of its flavour and texture. More care is taken with first- and business-class meals, so the meat and vegetables may be packaged and heated separately, then assembled by flight attendants referring to a photo of a dish put together by a top-class chef.

In economy, however, the ingredients are all thrown in together, which is why the meat so often comes out tough and the vegetables mushy. Airline caterers usually choose foods that will stay intact through the gruelling process of preparation, which is why you see a lot of rice and pasta dishes.

Just to make the culinary experience worse, recycled aeroplane air dries your mouth out and high altitude also handicaps your sense of taste. So airline caterers exaggerate flavour, usually by adding extra salt or other seasonings.

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Post time 2011-4-23 17:04:17 |Display all floors
Aeroplane cabin air is typically about half as fresh as air from the outside. Half of it will have been recirculated and filtered air that was already in the cabin. Filtering is meant to remove any contaminants or viruses that may be floating around, though there is currently some debate about whether this works effectively.

Another problem with recirculated air is that it has higher carbon dioxide content than fresh air. Even at a 50/50 mix, this is likely to make the air "taste" stale and sometimes make passengers feel more drowsy than normal. So why not use all fresh air? The heating and cooling processes needed to prepare fresh air for the cabin use extra fuel. Fuel costs money, and we all know airlines like to save as much of that as possible



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Post time 2011-4-23 17:07:17 |Display all floors

sex onboard

Constant queuing, invasive security checks and grotty food aside, flying can still undeniably be sexy. The allure of foreign shores, that break from routine and perhaps a glass or three of free alcohol can make for a heady mix that causes people to cast aside their inhibitions relatively easily. But is membership of the mile high club - to which the actor Ralph Fiennes and the entrepreneur Richard Branson, for example, belong - legal? That, it seems, depends on where you do it and who you might offend.

Prosecutions for amorous goings-on in British airspace are rare or non-existent. Any prosecution would need a complaint to go ahead, and it seems the latter are in short supply. Sex in the aeroplane toilet, on the other hand, although it seems the obvious place to go, risks, ahem, breaching the Sexual Offences Act 2004, which prohibits sex in a lavatory to which the public have access. You could also be accused of outraging public decency, a common law offence

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Post time 2011-4-23 17:09:33 |Display all floors
Many people, whether shifting location or taking their dog on holiday, need to fly with their pets but where the critters will go depends on the animal and the airline. Some airlines allow small cats and dogs to ride in the cabin on domestic flights, as long as they are under a certain weight and the carrier fits under the seat. As a rule, though, pets and their containers weighing more than 6 kg in total have to go in the cargo hold with the baggage, which with most airlines is climate-controlled like the cabin.

Budget airlines such as Ryanair don't allow pets onboard at all, while a new airline in the US, called Pet Airways, now offers domestic "pet-only" flights. Interestingly, pug-nosed dogs are forbidden to fly at all, as the structure of their faces make it harder to breathe the thin aeroplane air

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Post time 2011-4-23 19:22:25 |Display all floors

Its because of electromagnetic interefernce

of the mobile phone with the plane's surveillance and other electronic gadgets especially when taking off and on landing. Its not a big thing but such a thing causing an accident cannot be ruled out.

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