Group items tagged

Phones and computers contain dangerous metals like lead, cadmium and mercury, which can contaminate the air and water when those products are dumped. It's called electronic waste, or e-waste, and the world produces a lot of it: 20 to 50 million tons a year, according to the UN — enough to load a train that would stretch around the world. The U.S. is by far the world's top producer of e-waste, but much of it ends up elsewhere — specifically, in developing nations like China, India and Nigeria, to which rich countries have been shipping garbage for years.

What Is a CRS? A classroom response system (sometimes called a personal response system, student response system, or audience response system) is a set of hardware and software that facilitates teaching activities such as the following. A teacher poses a multiple-choice question to his or her students via an overhead or computer projector, perhaps using PowerPoint to do so. Each student submits his or her answer to the question using a handheld transmitter (often called a “clicker”) that beams an infrared or radio-frequency signal to a receiver attached to the teacher’s computer. Software on the teacher’s computer collects the students’ answers and produces a histogram showing how many students chose each of the answer choices.

Stellarium is a free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope. It is being used in planetarium projectors. Just set your coordinates and go.

Computer tutorials based on pictures, not words.

Learn With Pictures, Not Words In Pictures online tutorials are based on pictures, not words. They're the easiest way to learn computer subjects. There's no complicated multimedia, just pictures that show exactly what to do

Storycaching is a proof-of-concept project combining GPS units, iPods, and laptop computers to create, store and share audio stories where absolute place is important. By using a GPS to locate a specific point on the earth and then listening to a podcast specific to that area, a new dimension in communication is created.