CODES

       1.       Introduction As the first law of thermodynamics states that “energy cannot be created or destroyed; it can only be converted from one form to another”. We have found a way to change one form of energy to another form of energy which is beneficial for us. We have burned fossil fuels, hydropower, nuclear, wind power, and many more which helps us to satisfy our needs. Energy has empowered us to run our industries, households, agriculture, science, and technology. We have reached beyond the stars with the energy revolution and still exploring how energy can be used sustainably. When humans started using different forms of energy there was an inadequate amount of knowledge of how it will affect the environment, we live in. Coal and fossil fuels were the most used source of energy to run almost everything. Slowly we moved to more sustainable, and carbon-free sources of energy and it has become a hot topic since then. With the ...

 History

We use a weight scale to measure weight but have you wondered how it works?  This article will explain and help you create your own weight-measuring device.  Lets learning begin. Strain Gauge The resistance strain gauge is a resistive element that changes in length hence resistance, as the force is applied to the base on which it is mounted causing stretching or compression. Strain gage is low-impedance devices; they require significant excitation power to obtain reasonable levels of output voltages. A strain gauge can be used to measure the force, where four strain gauges are used, two on the top side, and two on the bottom side. The gages are connected in an all-element bridge configuration, which gives maximum sensitivity and is inherently linear. When the pressure is applied to the plate, two gauge elements of the bridge are subjected to tension; the other two elements are subjected to compression. The corresponding changes in resistance are a measure of the incident pre...