Everything about INS Kalvari

INS Kalvari • INS Kalvari is a Scorpene-class submarine described as a “deadly predator”. • It is one of six built by Mazagon Dock Limited in Mumbai as a part of Project-75 of the Indian Navy. • Kalvariis a potent Man o’ War capable of undertaking offensive operations spanning across the entire spectrum of Maritime Warfare. • Kalvari is named after a deep sea tiger … Continue reading Everything about INS Kalvari

Everything about Mi8 Helicopter

• Indian Air Force is phasing out the Mi-8 helicopters. • Mi-8 helicopter has been used in numerous operations, missions, expeditions and movements conducted by IAF. • Most of the Indian Air Force Officials have called the helicopter ‘iconic’. Mi-8 helicopters • They are a utility and medium sized assault helicopter. Induction in IAF • In 1972, they were inducted in IAF from erstwhile USSR. … Continue reading Everything about Mi8 Helicopter

Everything about Missiles

What is a missile? A missile is essentially a sophisticated bomb which after being released is governed by the laws of ballistics. The laws of ballistics means only the force of gravity acts upon it. It can be made more accurate and faster by attaching a propulsion system to the bomb and then it is called a rocket. If guided and controlled, a rocket can … Continue reading Everything about Missiles

Everything about Brahmos

Brahmos: • It is a medium-range ramjet supersonic cruise missile that can be launched from submarine, ships, aircraft or land. • It is a joint venture between the Russia’s NPO Mashinostroeyenia and India’s Defence Research and Development Organisation. • It has derived its name from the names of two rivers, the Brahmaputra of India and the Moskva of Russia. Speed: • It travels at the … Continue reading Everything about Brahmos

How is atomic bomb different from hydrogen bomb?

How is atomic bomb different from hydrogen bomb? A hydrogen bomb, also called a thermonuclear bomb or an H-bomb. It is far more powerful than the relatively simple atomic weapons. It uses a second stage of reactions to magnify the force of an atomic explosion. The second stage is fusion. Fusion is mashing hydrogen atoms together in the same process that fuels the sun. When … Continue reading How is atomic bomb different from hydrogen bomb?


Dhruv: Dhruv has been indigenously designed and developed by the HAL, and is powered by the Shakti engine jointly developed with Turbomeca of France. It is a twin engine, multi-role, multi-mission new generation helicopter. It is superior to the other helicopters used by the Army such as Cheetah and Chetak, both of which have single engine. It has been exported to several countries in the … Continue reading Dhruv:

Cyber attack – ransomware , NotPetya

It is a malicious software that blocks access to computers and data until a sum of money is paid. NotPetya is the second major global ransomware since WannaCry, which had infected about 3,00,000 computers across 200 countries in May. Similar to WannaCry, one of the means by which Petya spread was by exploiting the MS12-010 vulnerability, also known as EternalBlue. Microsoft had issued a security … Continue reading Cyber attack – ransomware , NotPetya