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.
The volcano is about the size of the state of New Mexico and is among the largest in the solar system, Sager says. World's coolest volcanoes. Tamu Massif covers an area of about 120,000 square miles. In comparison, the largest active volcano on land, Hawaii's Mauna Loa, is about 2,000 square miles, Sager says.