Science

In zigzag kilns, bricks are arranged to allow hot air to travel in a zigzag path. The length of the zigzag air path is about three times that of a straight line, and this improves the heat transfer from the flue gases to the bricks, making the entire operation more efficient. In addition, better mixing … Read more

Navigation satellite is a system which provides system of artificial satellite that helps in providing autonomous geospatial positioning. It helps to provide positioning information regarding local time to high precision. Global positioning system launched(GPS) by NASA is an example of it. India Launched Indian regional navigation satellite system called IRNSS. It is a constellation of … Read more

The spinal cord, running almost the full length of the back, carries information between the brain and body, but also carries out other tasks.  From the brainstem, where the spinal cord meets the brain, 31 spinal nerves enter the cord.  Along its length, it connects with the nerves of the peripheral nervous system (PNS) that … Read more

These are destructive software or malicious one which exists in the form of computer virus, computer worm, trojan or trojan horse which may get attached to email or gets in a file while downloading from a website or via compact discs. In the world of cyber era these software are highly dangerous. The types of … Read more

Amplitude Amplitude, the maximum displacement or distance moved by a point on a vibrating body or wave measured from its equilibrium position. It is equal to one-half the length of the vibration path. The amplitude of a pendulum is thus one-half the distance that the bob traverses in moving from one side to the other. … Read more

The rapid growth of technology, upgradation of technical innovations and a high rate of obsolescence in the electronics industry have led to one of the fastest growing waste streams in the world which consist of end of life electrical and electronic equipment products. It comprises a whole range of electrical and electronic items such as … Read more

Immunity is the ability of the body to fight against infectious agents. The immunity can be classified as innate immunity and acquired immunity. Innate immunityis a non-specific type of defense mechanism.  It has four types: i) Physical barrier: Example, skin covering of the body, secretion of mucous in the respiratory tract ii)Physiological barrier: Example, acid in the … Read more

Face hygiene Our face reveals our daily practice of personal hygiene. Face hygiene includes all parts of the face. The most important area to keep clean is the eyes. The eye discharges protective fluids that could dry and accumulate around the eye. They are visible when a person gets up in the morning. The organic … Read more

National Cybersecurity Coordination Centre (NCCC) It is India’s cyberspace intelligence agency which will conduct security and electronic surveillance. It aims to screen communications metadata and work in close coordination with various law-enforcement agencies for intelligence gathering. The body, functioning under the IT ministry, would strengthen the country’s cybersecurity posture. Some have expressed concern that the … Read more

DRDO is the R&D wing of Ministry of Defence, Govt of India, with a vision to empower India with cutting-edge defence technologies and a mission to achieve self-reliance in critical defence technologies and systems, while equipping our armed forces with state-of-the-art weapon systems and equipment in accordance with requirements laid down by the three Services. … Read more