Geostationary orbit

More than 150 years ago, the invention of the camera, a now every day item, was made and its later counterparts would be the technology to predict deadly catastrophes and save millions of people. This modern technology is known as remote sensing. The term “remote sensing” was used first by Evelyn Pruitt of the U.S. Office of Naval Research in the 1950s. It is “commonly used to describe science-and art-of identifying, observing, and measuring an object without coming into direct contact with it”…

co-evolution between the two agencies, ISRO's first experimental communication satellite (APPLE) was launched on board ESA's Ariane Launch Vehicle in 1981. Ariane has also launched several INSATs of ISRO. Chandrayaan-1, ISRO's first mission beyond Earth orbit, marked the beginning of a new era of collaboration between ESA and ISRO in space science. It was considered that ESA-ISRO collaboration on Chandrayaan-1 was an opportunity for Europe to expand its competence in lunar science while…

He proposed the use of geostationary orbits for satellites to communicate with Earth. An avid scuba diver for most of his life, he moved to and spent the rest of his life in Sri Lanka, where he continued to write. After Philip K Dick’s fourth marriage broke up he fell to into an addiction…

While ubiquitous Internet access is extremely convenient and enables marvelous new applications for mobile users, it also creates a major security vulnerability—by placing a passive receiver in the vicinity of the wireless transmitter, that receiver can obtain a copy of every packet that is transmitted! These packets can contain all kinds of sensitive information, including passwords, social security numbers, trade secrets, and private personal messages. A passive receiver that records a copy of…