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How does a Transformer work ?

This video gives a detailed animated illustration on the working of electrical Transformers. Here the basic working principle and construction of transformer, step-up transformer, step-down transformer, transformer winding and core construction are well illustrated.    

Transformer Winding types

Different types of transformer windings employed in practise are explained in this video with help of animation. The winding types explained are disc-type, cross-over, helical and sandwich.    

DC Motor, How it works?

The working of a DC motor is well explained in this video with the help of animation. Construction details of DC Motor, Shunt & Series motor, concept of back EMF are also explained in this video.    

Manual Transmission, How it works ?

Working of a Manual transmission is explained in an illustrative and logical manner in this video with the help of animation. Here the working of Sliding mesh and synchromesh transmissions are well illustrated. This video also explains the working of a reverse gear.    

Degrees of Freedom

The concept of DoF is well explained in this video lecture with the help of animation of mechanisms. This video covers the topic of a higher pair, lower pair and mobility equation. Degrees of freedom of 4 bar linkage, cam and follower mechanism and 5 bar linkage are worked out here.    

The History of Robotics

The History of Robotics Learn about some of the fascinating moments that have helped define the history of robotics. This timeline features a number of historic events of the past as well as recent developments that have helped shape the world of robots and technology in general. Read about advances in artificial intelligence, changes in industrial robotics, research into robotic arms used in car manufacturing, mars rovers and much more. Follow the history of robotics from its humble but visionary beginnings right through to the complex robots of today. These robots tie together a range of interrelated areas such as…

Interface / connect Raspberry pi to a PC monitor and Laptop

Today we will be learning how to interface /connect Raspberry pi to a PC monitor and Laptop Last week, I hope we have finished how to burn RASPBIAN image (OS) file in to Memory card. Now, Let us look at the ports of Raspberry pi: Out of the ports we have as shown in the above figure, we will be using only HDMI, Ethernet and Audio and video jack to connect to PC monitor /Laptop/TV Respectively. Interfacing of Raspberry pi with the above depends on the individual, his availability and his requirements. HDMI interface: With the HDMI port available on…

Getting started with Raspberry Pi

Hello Everyone, here is our first weekly updating blog on a specific technology. Today we will be starting with ‘Raspberry pi’.   What is a ‘Raspberry pi’? If you Google the same thing, you will be seeing it as a low-cost, small credit-card sized computer.   Yes, It is a credit card sized computer which can easily be connected to a display just as TV or PC’s monitor and there are many other displays such as TFT screens, LCD screens specially designed for ‘Raspberry pi’ with different sizes. As  every computer has an OS to access the system, Raspberry pi also has OS…

What is the concept behind gyroscopes and accelerometers?

Here is an excellent explanation of both Accelerometer & Gyroscope. Source: A Guide To using IMU (Accelerometer and Gyroscope Devices) in Embedded Applications. Acclerometer When thinking about accelerometers it is often useful to image a box in shape of a cube with a ball inside it.. You may imagine something else like a cookie or a donut , but I’ll imagine a ball: If we take this box in a place with no gravitation fields or for that matter with no other fields that might affect the ball’s position – the ball will simply float in the middle of the box…..

Robot! What’s that?

Whether you’re a kid or an adult, everyone has an idea of what robots are … from the Robot on “Lost in Space” to the “Transformers”. But they do so much more than just “compute”. It is a machine that gathers information about its environment (senses) and uses that information (thinks) to follow instructions to do work (acts).   This is the working definition of robots that Robotics exhibit developers used for this exhibit. Today technology is changing at incredible rates making the identification of a robot somewhat difficult. Things that we use everyday incorporate features beyond those of early…

In the simplest terms, how does a PID controller work?

Interestingly your intuitive, human control is not that different from a PID controller.   Imagine you are driving a car, trying to reach and maintain speed of 50 kilometers per hour. – You watch the difference (error) between your speed and the desired speed. – You press more or less on the gas pedal (control output).   The PID control has three parts (rules): P, I, D. Each contributes to the control output.   P – proportional The less you have, the more you push.  The farther you are from the desired speed, the more you press the gas pedal;…

Why Kids Prefer Robots To Teachers And Parents?

A study founds that kids not only love robots but also that robots benefit kids in the classroom. The implications of this “benefit,” however, might not seem so benign on closer examination.   The study, “Robots @ School,” was implemented by Latitude, an international research consultancy, in association with the LEGO Learning Institute and Project Synthesis, an Australia-based idea consultancy. It asked 350 students, ages 8-12, from Australia, France, Germany, South Africa, the UK and U.S. to write and illustrate a short story answering a simple question: What would happen if robots were a part of your everyday life at school…

Lithium Polymer Charging/Discharging & Safety Information

Lithium Polymer Safety Tips: Lithium Polymer cells are a tremendous advance in battery technology for RC use. However, due to the chemistry of lithium cells, there is a possibility of fire if charging is not properly done. It is unavoidable due to the nature of lithium itself. This is no different from many things we use in daily life – knives, kitchen cleaners, automobiles, for a few examples – which are inherently dangerous, but which can be used safely by adhering to simple rules and precautions. Batteries should NEVER be left unattended while charging. Be absolutely sure that the Lithium…

Why It’s Important to Always Use Tolerances

Ambiguity is not your friend. If you leave a dimension without a tolerance, no one else will know the importance, or the unimportance, of that dimension. Not only can a lack of tolerances lead to improper fits, it will also add to delays and higher costs.   Imagine you are working on a design for a high efficiency windmill. Due to its complexities you need various custom parts, so you send out manufacturing drawings to various vendors for them to be made. Several weeks later you receive all the parts, but some do not fit.   One of your special…

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