Plug-and-play external USB capture cards (often referred to as âUSB video grabbersâ) are quietly revolutionizing the way that businesses and universities record and live stream video. Magewellâs XI100D HDMI to USB3 video capture dongle. External USB capture cards perform a task traditionally assigned to internal PCI capture cards or dedicated video capture appliances. They enable video to be captured from a wide range of sources, including those that output to VGA, DVI, HDMI, and HD-SDI.
Answer 4: Beach sand has different colors because there are many different minerals that make up sand. In California, our sand usually looks white because it has minerals like quartz and pieces of shells that are made of calcium carbonate.
Mar 14, 2017. Black sand beaches are typically formed when fragments of lava and other volcanic minerals are broken down by the ocean. For this reason, you'll find many black sand beaches in areas like Hawaii and Iceland, but there are also some unexpected contenders â take Greece and Italy, for instance. Read on for where you can find one of nature's most marvelous creations, whether you're looking for a tropical or glacial getaway.