🤔 How it works …….. ⁉
How an Ear hearing aid works?
A hearing aid has three basic parts: a microphone, amplifier, and speaker. The hearing aid receives sound through a microphone, which converts the sound waves to electrical signals and sends them to an amplifier.
The amplifier increases the power of the signals and then sends them to the ear through a speaker.
The sound waves are gathered by the outer ear and sent down the ear canal to the eardrum. The sound waves cause the eardrum to vibrate, which sets the three tiny bones in the middle ear into motion.
The motion of the bones causes the fluid in the inner ear or cochlea to move. cochlea, causes changes in tiny structures called hair cells.
How we can lose our hearing?
The path between your outer ear and your brain can be blocked or damaged in many different places and in a number of different ways, so people can become deaf or lose some or all of their hearing for lots of different reasons.
One of the most common types of hearing loss happens when the hairs in the cochlea become damaged. If there are fewer hairs, sounds produce less stimulation in your brain—so things need to be louder for you to hear them. That’s where hearing aids come in.
They can’t help everyone with impaired hearing, but they can often make a difference to hearing problems caused by a loss of cochlear hair cells or damage to other parts of the inner ear.
😳Why❓❓❓
What Is Vitiligo? Why it happens
Vitiligo is a condition in which white patches develop on the skin. Any location on the body can be affected, and most people with vitiligo have white patches on many areas.
Vitiligo is caused by the lack of a pigment called melanin in the skin. Melanin is produced by skin cells called melanocytes, and it gives your skin its colour. In vitiligo, there are not enough working melanocytes to produce enough melanin in your skin. This causes white patches to develop on your skin or hair.
💁🏻♂️ GK TODAY
The South Asian Association for Regional Cooperation (SAARC) is an economic and political organization of eight countries in South Asia.
SAARC was founded in Dhaka on 8 Dec 1985
The Headquarter of SAARC is in Kathmandu, Nepal.
Members : Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan and Sri Lanka
Afghanistan joined as the 8th member of SAARC in 2007.
SAARC aims to promote economic growth, social progress and cultural development within the South Asia region.
BORN TODAY 🐣💐
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Surekha Yadav (born 2 September 1965) is a female locopilot (train driver) of the Indian Railways in India.
She became India’s first female train driver in 1988. She drove the first “Ladies Special” local train for Central Railways when it was first introduced in the four metro cities by Mamata Banerjee the then Railway Minister, in April 2000.
IDIOMS & PHRASES
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A piece of cake : An easy task/job
Example : The boy found the project to be a piece of cake because it was incredibly easy.
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Ch Narmada Naveen Kumar |
