gyanpro articles Archive


What is EMI? EMI is a phenomenon in which an electric current or electromotive force is induced in the coil due to a magnetic field produced in the coil. Michael Faraday is the scientist behind the invention of electromagnetic induction. Though Faraday was first to publish this but it was discovered autonomously by Joseph Henry. This electromagnetic induction is dependent on Faradays Laws of a magnetic field. Faraday first proved this electromagnetic theory by winding copper wires to both ends of the iron rod. He explained this theory using a concept of lines of force. What is Faradays experiment? Faraday


Bluetooth is one of the wireless technologies for the sharing of data over short distances. This short link service using radiowaves was initiated by Nils Rydbeck CTO at Ericson mobile in Lund. In 1998 the Bluetooth technology was adapted and it kept on evolving to date.  Bluetooth is managed by Bluetooth Special Interest Group (SIG). The data transmission was done using the radio waves of ISM band 2.4 to 2.485GHz.   Even before we get to know how Bluetooth functions let’s see its timeline of evolution from the time of its invention to date. 1998: The research was completed and

Layer of Earth ASTHENOSPHERE !!

ASTHENOSPHERE The asthenosphere is one of the layers of earth lying below the lithosphere, approximately 80 to 200km beneath the earth’s surface and is a part of the upper mantle. It is made up of a layer of solid rocks. It has so much of pressure and heat that these solid rocks just flow down like liquids. These asthenosphere rocks are less dense than the lithosphere. This factor accounts for the movement of tectonic plates in the lithosphere to move on the earth’s surface. The temperature defines the thickness of the asthenosphere layer. As the temperature increases, the pressure exerted

Stress-free parenting is no more a myth!

In the last one month do you recall losing your temper? Been completely clueless about what to do next? Been unable to control your emotions? Not being able to manage work and home as well as you normally do? Are you yelling at your children often? Parents, watch out for stress! Stress is contagious and the consequences of stress are hard to imagine. Draining out of energy, yelling, losing out patience, expressing anger, getting anxious, lack of sleep are some of the symptoms of stress. These affect the day to day routine and have a negative impact on the mind

Ever Smiling Yangtze Finless Porpoise

Yangtze finless porpoise is a mammal living in the longest Asian river The Yangtze River. This porpoise was officially declared to the world in the year 1899. It belongs to phocaenoides family and Neophocaena phocaenoides is its biological name. It was abundantly found in the costal Asian waters but today, it is one of the critically endangered species with only about 1000 of them living. Greedy human activities like polluting the Yangtze River by releasing harmful industrial chemical waste in to the water has led to a large deterioration in the population of Yangtze finless porpoise. Anatomy The most unique

The European Originate Pangolin

Pangolins are also known as scally anteaters mainly because of its appearance and diet. The name pangolin was derived from the word ‘penggulung’ which means roller. There are about eight existing species of pangolin, namely the Indian pangolin, Chinese pangolin, Sunda pangolin, Philippine pangolin, tree pangolin, giant pangolin tree pangolin and Temminck’s ground pangolin. They have a wide spread across Asia and Africa. It was in the year 1821 that this species belonging to Manidae family was officially declared to world. And now it has been declared as the most trafficked mammal. Anatomy The physical appearance can vary from one

Numbat Anteating Marsupial

Numbat is an Australian origin marsupial anteater. Myrmecobius fasciatus is the scientific name of Numbat. The name Numbat came in to use by the mispronunciation of its original local name noombat. And in 1836 it was officially declared in records. This specie is closely related to Tasmanian tiger which no more exists. The existence of very few of these has marked Numbat as a critically endangered species. There are 500-600 Numbat individuals left in Australian wild. Anatomy Numbat is very small squirrel sized animal. It is as small as 20-27 cm in length and weighs about 400-700 g. They have

Twisted Horned Markhor

Markhor is a type of wild goat found in Pakistan, Kashmir, southern parts of Tajikistan and Uzbekistan. . Makhor means snake in Persian. . And Makhor is the national animal of Pakistan. This animal has a twisted horns which look like snake. This led to naming of this animal as Makhor Untill 2015 it had been marked as endangered and now it has been listed as near threatened species. At this period of time there are only about 2000 to 3000 Makhors remaining. Huge destruction of habitat has led to the endangerment of this animal. Anatomy Markhor weighs about 40-110

The Ancient Kakapo Parrot

The Kakapo also known as Strigops habroptila in biological terms is one of the oldest living bird. Kakapo is a heavy weighted flightless parrot native to New Zealand. Its Latin name means “Owl faced soft features”. It has very less features and also has a wide face like an owl. They are nocturnal unlike any other parrot species. May be that us why it is compared to owl? This is now critically endangered with very few of these currently surviving. Anatomy A Kakapo adult can measure about 55 to 65 cm and can weight from 2 to 5kg on an

The Most Elegant Gooty Spider

The Gooty Spider or biologically known as Poecilotheria metallica a species of tarantula. These species are commonly known as Jewel tree Gooty spider. It looks very elegant and colourful. The Gooty Spiders are known for its capability to populate and multiple in a faster rate compared to any other spiders. Inspite of the ability to repopulate fast, yet these species are marked as critically endangered by IUCN. They are likely to face huge risk of extinction. The Gooty spiders were first discovered in the year 1899 in central southern parts of India specifically in Gooty town. Anatomy The Adult Gooty