Posts

What is IRNSS - Indian Regional Navigation Satellite System

Image
According to ISRO (Indian Space Research Organisation),  Indian Regional Navigation Satellite System ( IRNSS) is an independent regional navigation satellite system being developed by India. It is designed to provide accurate position information service to users in India as well as the region extending up to 1500 km from its boundary, which is its primary service area. An Extended Service Area lies between primary service area and area enclosed by the rectangle from Latitude 30 deg South to 50 deg North, Longitude 30 deg East to 130 deg East. IRNSS will provide two types of services, namely, Standard Positioning Service (SPS) which is provided to all the users and Restricted Service (RS), which is an encrypted service provided only to the authorised users. The IRNSS System is expected to provide a position accuracy of better than 20 m in the primary service area. Some applications of IRNSS are: Terrestrial, Aerial and Marine Navigation Disaster Management ...

What Is Global Positioning System - Introduction To GPS - How It Works

Image
The Global Positioning System (GPS) is a satellite-based navigation system made up of at least 24 satellites. GPS works in any weather conditions, anywhere in the world, 24 hours a day, with no subscription fees or setup charges. The U.S. Department of Defense (USDOD) originally put the satellites into orbit for military use, but they were made available for civilian use in the 1980s. GPS or Global Positioning System is a network of orbiting satellites that send precise details of their position in space back to earth. The signals are obtained by GPS receivers, such as navigation devices and are used to calculate the exact position, speed and time at the vehicles location. GPS is well-known for its military uses and was first developed by the US to aid in its global intelligence efforts at the height of the Cold War. Ever since the early 1980s, however, the GPS has been freely available to anyone with a GPS receiver. Airlines, shipping companies, trucking firms, and drivers...

What is Optical Fiber Cable

Image
A fiber optic cable is a network cable that contains strands of glass fibers inside an insulated casing. They're designed for long distance, very high performance data networking and telecommunications. Compared to wired cables, fiber optic cables provide higher bandwidth and can transmit data over longer distances. Fiber optic cables support much of the world's internet, cable television and telephone systems. Fiber optic cables carry communication signals using pulses of light generated by small lasers or light-emitting diodes (LEDs). The cable consists of one or more strands of glass, each only slightly thicker than a human hair. The center of each strand is called the core, which provides the pathway for light to travel. The core is surrounded by a layer of glass called cladding that reflects light inward to avoid loss of signal and allow the light to pass through bends in the cable. The two primary types of fiber cables are called   single mode  and  m...

What is PSLV - Polar Satellite Launch Vehicle

Image
The Polar Satellite Launch Vehicle, commonly known by its abbreviation PSLV, is an expendable launch system developed and operated by the Indian Space Research Organisation (ISRO). It was developed to allow India to launch its Indian Remote Sensing (IRS) satellites into Sun-synchronous orbits, a service that was, until the advent of the PSLV, commercially available only from Russia. PSLV can also launch small size satellites into geostationary transfer orbit (GTO). In 2015 India successfully launched 17 foreign satellites belonging to Canada, Indonesia, Singapore, the United Kingdom and the United States. Some notable payloads launched by PSLV include India's first lunar probe Chandrayaan-1, India's first interplanetary mission, Mangalyaan (Mars orbiter) and India's first space observatory, Astrosat. On 15 February 2017, India successfully launched a payload of 104 foreign satellites in polar orbit around the Earth using PSLV tripling the previous record held by R...

Who is Elon Musk and What is Tesla, Spacex and SolarCity - Biography of Elon Musk

Image
Elon Musk is the founder, CEO and CTO of SpaceX, co-founder , CEO and product architect of Tesla Motors, co-founder and chairman of SolarCity, co-chairman of Opan AI, co-founder of Zip2 and founder of X.com, which merged with PayPal. Musk has envisioned a high-speed transportation system known as the Hyperloop and proposed an electric jet. He has previously said that the goals of his companies revolve around his vision to change the world and humanity. His aim is to reduce global warming and reduce the risk of human extinction by setting up a colony on Mars. Now the billionaire inventor is working on the world's largest lithium-ion battery, which he is building in Australia to store renewable energy. SpaceX is an aerospace manufacturer and space transport services company. It was founded in 2002 by Musk with the goal of colonising Mars. It was the first privately funded company to successfully launch, orbit and recover a spacecraft. Now it has laid out det...

The Benefits and Risks of Ultra-Violet Radiation

Image
Ultraviolet (UV) radiation is a type of energy produced by the sun and some artificial sources, such as solariums.  Ultra-violet (UV) lasers for Raman spectroscopy typically include laser wavelengths ranging from  244 nm through to 364 nm . UV radiation isn’t like the sun’s light or heat, which we can see and feel. Your senses cannot detect UV radiation, so you won’t notice the damage until it has been done. Theoretically UV Raman spectroscopy is no different from standard analysis using visible laser wavelengths.  However, in practice there are a  small amount that gets through has both positive and negative effects.  Positive effects of UV Photolithography:  UV is employed in fine resolution photolithography and hence is extensively used in the field of electronics. Vitamin D Production :  UV from the Sun is needed by our bodies to produce vitamin D. Vitamin D helps strengthen bones, muscles and the body’...

Bermuda Triangle : Devil's Triangle

Image
The Bermuda Triangle, also known as the Devil's Triangle is a loosely defined region in the western part of the  North Atlantic Ocean  where a number of aircraft and ships  are said to have disappeared under mysterious circumstances. According to the US Navy, the triangle does not exist, and the name is not recognized by the  US Board on Geographic Names .Popular culture has attributed various disappearances to the paranormal or activity by extraterrestrial beings. Shocking Facts About Bermuda Triangle  The Bermuda Triangle is not small. In fact, it is quite large and covers an area of 440,000 miles of sea. This is larger than the combined area of Rajasthan, Madhya Pradesh & Maharashtra. The bermuda triangle is certainly not fixed and its effect can be experienced outside of the triangle too.  The disappearances are ascribed to UFO's and alien activity, city of Atlantis lost under the triangle, and various other technical, natural ...