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Getting the picture

作者:胥瘁到    发布时间:2019-03-07 09:11:07    

Webcams are very much the unsung heroes of the Web, with thousands of cameras now trained on sites and scenery that make surfing a heap more fun—though not all of them are intended for that purpose. Fancy catching dawn breaking in Alaska? Check out the airport webcams at www.flightcam.net, which show pilots images of the weather conditions in almost real-time, at three rural airports in Alaska’s interior. But catch it at the right time of day and the view’s spectacular. lThere are many guides to the cam sites that are out there: try www.earthcam.com, where you can search cams by category, from “art and entertainment” to “weird and bizarre”, via “space and science”. A new site listed there is National Geographic’s bearcam (www.nationalgeographic.com/bearcam) that lets you see what’s said to be the world’s largest gathering of brown bears, drawn by teeming hordes of spawning salmon. Another resource site, which is no longer maintained but which still lists many interesting cams, is Webcams On The World at www.thecyberguy.com/webcam.htm, while Webcam Central at www.camcentral.com lists even more categories of cameras than Earthcam. Hit the “science instruments” category and you’ll find the Antarctic’s automated astrophysical site testing lab (AASTO), a self-powered, self-heated observatory that measures astronomical observation conditions all year round, helping astronomers plan future sites for observatories (http://bat.phys.unsw.edu.au/~aasto/). If you come across a webcam site where nothing is happening, take heart—it may just be the webmaster saving money on the phone line time. There’s normally a message somewhere on a site telling you when the site will be active—see www.hauntedvalley.com/webcam.htm, for instance. Local calls to ISPs are free in the US, of course, so cams usually stay live indefinitely. More on these topics:

 

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