History. 1  A soldier carries an early example (1945) of mobile synchronous radio communication. 2  A basic chat box allows quick communication, but with too many people can be frustrating. 3  All those red flags are messages I've ignored, a pitfall of asynchronous communication.
Earth's Largest Volcano-Mauna Loa,Hawaii. The largest volcano in the world is Mauna Loa on the island of Hawaii. There have been references to Yellowstone as the largest volcanic system in North America, but most, if not all, scientific organizations recognize Mauna Loa as the largest single volcano.
Mt. Etna, which is located in Sicily, Italy is the most active volcano in Europe.he tallest, and most imposing, volcano in California is Mt.  Shasta, at 14,179 feet. However, the largest volcano by volume is  the Medicine Lake Volcano (which is also the â¦ biggest volcano by  volume in the Cascades).