S&T

Rabies

  Rabies is viral disease that causes inflammation of brain (acute encephalitis) in warm-blooded animals. It is zoonotic disease i.e. transmitted from one species to another, commonly by bite or scratch from infected animal such as dogs to humans. The rabies virus infects central nervous system (CNS) and ultimately causes disease in brain and death. …

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Stem cell

Stem cell is undifferentiated cell of multicellular organism which is capable of giving rise to indefinitely more cells (through mitosis) of same type and from which certain other kinds of cell may be formed by the cellular differentiation. There are two types of stem cells widely used Embryonic stem cells:  They come from human embryos …

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Prahaar Missile

It is a surface-to-surface short-range tactical ballistic missile. Solid-fuelled Developed by DRDO It has operational range of 150 km and flight altitude of 35 km. It is quick-reaction, all-weather, all-terrain, highly accurate battlefield support tactical missile with advance manoeuvring capability. It is capable of carrying multiple types of warheads weighing around 200 kg and neutralizing …

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Hydrogen trains

  Hydrogen trains are equipped with fuel cells that produce electricity by combining hydrogen with oxygen. This conversion process only emits steam and water, thus producing zero emissions. Excess energy produced is stored in ion-lithium batteries on board train. These trains also make very little noise. Moreover, hydrogen fuel cells have advantages over batteries. Instead of …

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Space elevator

It is proposed type of planet-to-space transportation system. Its components mainly are cable (also called tether) anchored to surface of planet and extending into space. It will permit vehicles to travel along cable from planetary surface, such as Earth’s, directly into space or orbit, without use of large rockets. The idea of space elevator was …

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Long Range Surface-to-Air Missile (LRSAM)

LRSAM has long-range engagement capability to penetrate deep water and land to intercept all types of aerial targets like subsonic and supersonic missiles, fighter aircraft, maritime patrolling aircraft (MPA), helicopter and sea skimming missiles. It is capable of countering newest generation anti-ship missiles. Indian Navy has decided to equip its all naval ships such as …

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e-cigarettes and ENDS

  ENDS are devices that heat solution to create aerosol, which also frequently contains flavours, usually dissolved into propylene glycolor and glycerin. e-cigarettes (electronic cigarettes) are most common prototype of ENDS. These devices do not burn or use tobacco leaves but instead vaporise solution, which user then inhales. ENDS solutions and emissions contain other chemicals, …

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