Amazing Idea of Fan Runs without Electricity

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Magnets attached to vanes attract metallic clips fixed on the next vane, creating a rotational motion, as a result fan runs faster and faster without any electricity and power. If you are in search of the answer of how to make a fan which runs without electricity power then of course this is a simple but a very scientific trick to run a fan without electricity at home. must try this at your end and enjoy this amazing fan in this seasonal summer loadshedding

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Ear Listening Mechanism Video – Amazing Video

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Ear Mechanism of Hearing

Hearing, auditory perception, or audition is the ability to perceive sound by detecting vibrations, changes in the pressure of the surrounding medium through time, through an organ such as the ear. Sound may be heard through solid, liquid, or gaseous matter. It is one of the traditional five senses; partial or total inability to hear is called hearing loss.

In humans and other vertebrates, hearing is performed primarily by the auditory system: mechanical waves, known as vibrations are detected by the ear and transduced into nerve impulses that are perceived by the brain (primarily in the temporal lobe). Like touch, audition requires sensitivity to the movement of molecules in the world outside the organism. Both hearing and touch are types of mechanosensation.

Introduction:

When we think of the ears, we think of the flaps that stick out from either side of our head. However these are only part of a complex physiological apparatus that enables us to hear all sorts of sounds and, more importantly, to respond appropriately. The most visible part of the ear is the outer ear, also sometimes called the external ear. The rest of the hearing organ, comprising the middle ear and the inner ear is buried within the temporal bone on either side of the skull. The temporal bone can be felt just behind the outer ear. The inaccessibility of the structural components of hearing and, as we shall see, the small size of the important structures, makes the study of hearing particularly challenging.

We can hear because a precise sequence of events takes place in the ear. We shall explore these events in this and succeeding chapters. In this chapter, we shall trace the sequence of events from initial receipt of the signal to the stimulation of the cochlea. We use the word ‘ear’ as the collective description of all the structures and not just the outer ear. Normally when we hear a sound it is a physical disturbance transmitted through air, through the external auditory canal, through the middle ear and into the inner ear structures where it may be detected, if it is intense enough and of the right frequency. If you tap the temporal bone with your finger you can hear the percussive sound transmitted directly to the inner ear. In this case sound is said to be transmitted by bone conduction. This simple test is one of those used to identify whether hearing losses come about because sound is not being transmitted properly through the external and middle ear to the hearing organ of the inner ear or whether it is the inner ear itself that is working incorrectly.

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Incredible Flying Snake

Incredible Flying Snake – Want to get our all new posts in your inbox? Subscribe to AchiKhasi by Email

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This is the Chrysopelea paradisi. Also known as the Paradise flying snake! Yes, it does fly. Looks almost fake but this baby sails through the air with no problem and makes some good distance at it too. flying snake, chrysopelea paradisi, sailing snake, tree snakes that fly. Paradise flying snake. Want to get our all new posts in your inbox? Subscribe to AchiKhasi by Email

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