James has been writing about technology for years but has loved it since the early 90s. While his main areas of expertise are maker tools -- 3D printers, vinyl cutters, paper printers, and laser ...

Look closely at this image, stripped of its caption, and join the moderated conversation about what you and other students see. By The Learning Network Look closely at this image, stripped of ...

Samsung Galaxy S4 Zoom mobile was launched in July 2013. The phone comes with a 4.30-inch touchscreen display offering a resolution of 560x960 pixels at a pixel density of 256 pixels per inch (ppi).