DoubleCAD™ XT: Free CAD Software The #1 Alternative To AutoCAD LT... For Free DoubleCAD™ XT is an AutoCAD LT® work-alike. But free. It's also 5-Star Rated from the editors at CNET... and the #1 most downloaded free CAD at Download.com. Powerful 2D CAD capabilities — and great .DWG and .SKP compatibility — make DoubleCAD XT an invaluable free companion for AutoCAD® and SketchUp™ users alike... Graphing Tools Skip to main content Get your Wikispaces Classroom now: the easiest way to manage your class. guest Join | Help | Sign In How to fit 1,000 terabytes on a DVD Using nanotechnology, researchers have developed a technique to increase the data storage capacity of a DVD from a measly 4.7GB to 1,000 terabytes. Image: Nature Communications We live in a world where digital information is exploding. Some 90% of the world’s data was generated in the past two years. The obvious question is: how can we store it all? In Nature Communications today, we, along with Richard Evans from CSIRO, show how we developed a new technique to enable the data capacity of a single DVD to increase from 4.7 gigabytes up to one petabyte (1,000 terabytes).
Creativity Tools Skip to main content Create interactive lessons using any digital content including wikis with our free sister product TES Teach. Get it on the web or iPad! 100+ Sites to Download All Sorts of Things These days you can find all sorts of things online, from audio books to flash files, from sound effects to CSS templates. Below we compiled a list with over 100 download sites that serve that purpose. We will also try to keep the list updated, so if your favorite download site is not here, let us know about it with a comment.
Image Tools Skip to main content Create interactive lessons using any digital content including wikis with our free sister product TES Teach. Get it on the web or iPad! Model KM — iTunes or Spotify? Model KM — iTunes or Spotify? The current craze amongst the UK musical digerati is a service based in Sweden called Spotify. Simply put, it is a legal way to play any music you could imagine (although there are the usual absences — The Beatles and Led Zeppelin, for example) without buying a copy of the CD or downloading a permanent digital version. Previously, when I thought about subscription-based music services, I was not sure what the attraction would be. I like to have my music with me wherever I am — in the car, on the train, walking to work.
Research Tools Skip to main content Create interactive lessons using any digital content including wikis with our free sister product TES Teach. Get it on the web or iPad! guest