------ Forwarded Message > From: Smart Mobs <[EMAIL PROTECTED]> > Date: Thu, 16 Feb 2006 06:35:47 +0800
> This editorial in Nature says 'millions of people across the world are zooming > in from space,flying across continents,and swooping over mountains and through > cities,thanks to Google Earth,NASA's World Wind and other free virtual > globes.The ability to model the Earth in exquisite three-dimensional detail > was previously only approached on the desktops of professional users of > geographical information systems (GIS).But even they were unable to publish > high-resolution globes on the Internet,because of the sheer volume of the > data,a globe with a resolution of one metre would take years to download using > even a fast Internet connection.Virtual globes overcome this problem with > elegant engineering, using a tiling structure that sends progressively > higher-resolution data as one zooms in.This and other tricks drastically > reduce the size of file transfers,and allow visualization with almost zero > latency on a decent broadband connection.Scientists are already experimenting > with these tools to showcase their research to the public in visually > appealing ways and to speed responses to natural disasters.Ultimately,such > accurate digital representations promise to anchor and unify much digital > information about the Earth,while also helping to integrate the efforts of > researchers from many disciplines". > > Think global > <http://www.nature.com/nature/journal/v439/n7078/full/439763a.html> --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "telecom-cities" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/telecom-cities -~----------~----~----~----~------~----~------~--~---
