Radio Collar: A brief Overview

Nowadays we are watching and reading a news about Indian students taged radio collars. Lets discuss what are radio collars:

Radio Collars are basically radio transmitters (which transmits light waves in the range of radio frequency (RF) waves), that can be used to detect the movement of a person or an animal. The collar consists a multiplicity of radio signal receivers each having a receiving antenna. The system transmitter continuously transmits a RF signal and a mobile receiver assembly mounted in the collar unit on the person/animal. The receiver assembly receives the RF signal and measures the intensity of the received signal.
Basically radio collars were made to study the movement of animals especially pets. The owners of the pets tied the radio collars to them. Pets can only move in a safe area, whenever they moved outside this area, a radio collar gives a warning signal in the form of a shock or a loud sound. By this way, pets learn to stay in their area only.

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Goldman Sachs placement exam experience

Note: This article or you can say interview experience is contributed by Mr. Pulkit through email to (email id: First of all, winnerscience is thankful to him and wish him all the best. You can also share your experiences with our users so that they can take tips and also be successful. Here is the complete experience shared by Pulkit:

I have many stories to tell, like how I never got down to studying, how we never gave the CCNA exams, how I couldn’t clear DE Shaw’s written test, etc. But one story overshadows them all. And that’s the one I’m gonna tell.

Goldman Sachs visited the Thapar Technology Campus on 8th and 9th October (Friday and Saturday), 2010. The written test was conducted on Friday morning, by the same company who had conducted the TI preliminary test. Continue reading “Goldman Sachs placement exam experience”

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Aircraft to be tested in air

National Aerospace laboratories (NAL) and Council of Scientific and Industrial Research (CSIR) In India, developed a technology called “structural health monitoring (SHM)”. According to it, crack or damages on an aircraft can be predicted even when it is airborne. The flight trials were conducted on “Aeronautical Development Establishment’s” unmanned air vehicle, Nishant.

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