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敬祝 快樂順心

udn 部落格．電家族 敬上

讓各位久等的 udn 部落格新版，即將於2013/06/17上線！

我們誠心邀請您共同迎接全新面貌的udn部落格。

需請您特別注意的是， udn部落格新版的全域網址將進行切換，預計於2013/06/17(一) 凌晨00:00-12:00停機。切換完畢後的新版網址將改為http://blog.udn.com/，舊版網址則改為http://classic-blog.udn.com/。屆時會有全新的部落格體驗，等待您的參與和經營分享。

相關詳情請參考「udn部落格新版預備上線公告說明」。

敬祝 快樂順心

udn部落格．電家族 敬上

The use of two or more horizontal rotors turning in opposite directions is another configuration used to counteract the effects of torque on the aircraft without relying on an antitorque tail rotor. This allows the power normally required to drive the tail rotor to be applied to the main rotors, increasing the aircraft's lifting capacity. Primarily, there are three common configurations that use the counterrotating effect to benefit the rotorcraft. Tandem rotors are two rotors with one mounted behind the other. Coaxial rotors are two rotors that are mounted one above the other with the same axis. Intermeshing rotors are two rotors that are mounted close to each other at a sufficient angle to allow the rotors to intermesh over the top of the aircraft. Transverse rotors is another configuration found on tiltrotors and some earlier helicopters, where the pair of rotors are mounted at each end of the wings or outrigger structures. Tip jet designs permit the rotor to push itself through the air, and avoid generating torque.

A more piquant version of the story was repeated by film director Andrew Litvack. He put the year as 1981 and says that Birkin was called to Hermès to receive the first prototype. As she was leaving with the bag, they asked if she had forgotten something. Puzzled, she realized they wanted her to pay for it. Litvack claims Birkin was eventually reimbursed, and now receives a 10% discount on Hermès products.

明月寄相思 千里傳真情

中秋念師尊 明月邀徒至

舉杯一飲盡 笑啖中秋餅

月明路光明 月圓人團圓

EZ祝您---教師暨中秋節快樂

Travel packagers and hotels are also offering breaks to those who buy in advance. Trafalgar Tours is discounting the airfare part of its peak-season packages to six European destinations by 56% for those who pay by March. At the luxury Fairmont chain, which has six hotels in Europe, guests who pay three weeks in advance get 30% or more off the best available rates - as low as $138 a night at the Fairmont in St. Andrews, Scotland.

Bottom line: The early booker gets the deal. "If you wait past April, you'll need to be flexible on where and when you go to save," says SmarterTravel's Banas.

But if you can't book by April ... reduce costs by looking for flights with one or more stops. On United, for example, midsummer roundtrips to Paris are about $1,000 nonstop, but as low as $614 if you connect through Frankfurt. Or fly a non-European carrier that stops in Europe. Going with Air Tahiti, which stops in Paris on its way from Los Angeles to Tahiti, can knock several hundred bucks off the fare.

Used to be, waiting until the last minute to book a summer trip could yield substantial savings. These days that's a risky move. Airlines in the U.S. and Europe cut back on capacity when fuel costs were high last year. Oil prices have fallen, but with the recession dampening travel demand, airlines continue to fly smaller and fewer planes. That means the cheapest seats fill up fast. So book your flight this month.

Sign up for low-fare e-mail alerts at FareCompare.com or Airfarewatchdog.com, which combs through airline websites for unpublished sales. In February, Airfarewatchdog noted that US Airways was offering roundtrip flights to Paris from many U.S. hubs for about $600, compared with an average of about $1,000. Such sales are fleeting - this one lasted two days - so be ready to jump.