Maglev trains are one of the greatest inventions in man-made history. These trains float over the track using magnetic power. The name Maglev is an abbreviation of Mag netic Lev itation. As there is no contact between the train and the track, these type of trains moves faster with minimum energy loss. These trains are also well known for their eco-friendly operation, as it does not use any petroleum products like petrol, diesel, etc. From the year 1902, magnetic levitation has begun to rule the world. In 1984, the first commercial maglev train was introduced in Birmingham, the UK, with levitation of 15mm and a track length of 600m. From the past to the present, there were several breakthroughs made in maglev technology. These breakthroughs were successfully implemented at present in three countries; namely China, South K...
A cell is the building block of a living thing. Every living thing is made up of tiny little cells. Especially humans have a very large amount of different types of cells like skin cells, muscle cells, sperm cells, egg cells and other cells. All these cells have the same basic parts like cell membrane, cytoplasm, endoplasmic reticulum, mitochondria, nuclear membrane, nucleus and more. Here the nucleus is considered as the main part of the cell. Inside the nucleus, there is a thread-like structure called chromatin which is made up of DNA (Deoxyribo Nucleic Acid) wounded around proteins called histones. These chromatins are essential for our life to sustain. The DNA in the nucleus decides the way our life should evolve. The DNA stores all the information about our body and the operations that need to be performed by each cell. Credit(Animal cell: Mostly same as Human cell): By OpenStax - https://cnx.org/contents/FPtK1zmh@8.25:fEI3C8Ot@10/Pre...
Air is a composition of various gases which float all around us. It exerts a tremendous pressure on everything. If this pressure is used in a well-versed manner it could be used for stopping the vehicles. Vehicles use various types of brakes to stop the rotating wheels. Each type of brake uses a different mechanism for stopping the vehicles. Particularly vehicles like cars use a liquid braking system to pull the brake system. But large vehicles such as buses and trucks cannot be easily stopped by the liquid braking system; due to the tremendous mass of the vehicle. So in such large vehicles, an air brake system is utilized. In an air brake system, the pressure exerted by the air is converted into frictional energy to stop the vehicles. The basic schematic system of an air brake system employed in the trucks and buses is shown below, Air brake System in trucks and buses As seen in the above image there are se...
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