🤔 How …….. ⁉
How generator/dynamo produces electricity? 💡
A simple dynamo is a device that converts mechanical energy into electrical energy. A coil made of conducting wire is positioned between the North and South poles of two permanent magnets. When the coil is stationary, no voltage is induced. But when the coil is rotated it experiences a changing magnetic field. rotating magnet (rotor) which distorts and cuts through the magnetic lines of flux of the stator. When the rotor cuts through lines of magnetic flux it makes electricity.
For the first half of a rotation the left side of the coil swings by the North pole of the left magnet and for the second half of the rotation it swings by the South pole of the right magnet. As a result, for the first half the coil generates a voltage with one polarity (either positive or negative) and for the second half the voltage has the opposite polarity. This type of voltage − one that switches betweens positive and negative − is called alternating voltage
😳Why❓❓❓
Why does the ocean appear blue🌊? Is it because it reflects the color of the sky
No….! The ocean looks blue, because red, orange and yellow (long wavelength light) are absorbed more strongly by water than is blue (short wavelength light).
So when white light from the sun enters the ocean,🌈 it is mostly the blue that gets returned. Same reason the sky is blue.
The ocean may also take on green, red, or other hues as light bounces off of floating sediments and particles in the water.
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What is the scientific reason behind tying a black thread on the waist from health view point.
Mostly in southern part of India, people follow the custom of tying a black thread around their waist is known as tagdi in north and as Araijan kayiru/Molathadu in south.
A Black thread on waist helps to keep balancing the weight and waist size under control by improving digestion.
If it becomes loose means your weight is lost, if it becomes tight means that you have gained the weight. It also provides support to lumber Spine, When we breath in &, breath out, pressure of waist thread improves intestinal strength and makes to eliminate our body waste like urine and food waste properly. Which also avoids diseases like gastric, piles and etc.
💁🏻♂️ GK TODAY
GandhiJi : Full name-Mohandas Karamchand Gandhi
Karamchand Gandhi -(father)
Putlibai Gandhi -(mother)
Kasturba Gandhi -(Wife)
Harilal, Manilal, Ramdas & Devdas (Children)
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Ch. Naveen Kumar |
