The Universe with or without Sense

I did an experiment in my house where I just tried to walk in a same manner by closing my eyes. 
I couldn’t last for few minutes. But I got something of a bizarre idea.

          If I don’t have only eyes, I can’t see anything but I can hear, touch, smell, and speak. For a visually challenged person, the world will look black. But he can understand something about the Nature and about humans, etc. We can make him feel by other four senses. But he will never know the world of colours. He don’t know what is light or how does object look. He will just know the shape, and whether it is heat or cold or whether it smells good or bad and whether it can make sound or not.

          But he will never know what is light.

          Then I thought for a while and started to eliminate the senses in human body one by one.

          For a person of both blind and deaf,

You can’t communicate with him. He can only feel by his skin and smell and may be can taste some food.

          But for a person who is blind, deaf, dumb and neither can he smell nor taste, how will be the Universe?

           He can just feel by touching anything.

But if he was isolated in the mid space, then?!!

          I couldn’t feel how that will be. It is just a black. He will never know what he is or where he is or answer for any question?

         

Think for a little time.

Think how will you explain the Universe to a person without five senses?

But don’t stop with that, now imagine what if you have more senses?

The world of a person without eyes is different from the usual person.

Applying the same thing in a normal person, I wonder whether we are also blind, deaf and dumb to understand the Universe.

Do we need some more senses to understand the real Universe?

Is it enough the senses to feel the real world?

          How many extra senses we need?

Just think and feel it. It is really amazing on thinking about these.

It is not philosophical but something we need to understand.

Think, what is the real Universe? if we are also just like a dumb, deaf, blind when comparing to the sufficient or really essential senses to sense the Universe. 

Colour of the Sky

          I was once asked a question that why the sky is blue and not violet. I found the answer through internet that it is due to the less sensitiveness of our eyes. Our eyes are not so sensitive to differentiate the colours in the sun light as intensity of the violet vary. And the oxygen molecules in the sky absorb the wavelengths at the edge of the ultraviolet spectrum.

         

          I thought about these reasons for a while, but in the mean time I was also reading about Raman’s effect. And it just so happened, why can't we understand the colour of sky by Raman’s effect? So I gave a try.

         

          But I don’t know whether I am absolutely right or wrong.

Raman’s effect was stated as,

When photons are scattered from an atom or a molecule, most photons are elastically scattered due to Rayleigh scattering, such that the scattered photons have the same energy (frequency and wavelength) as the incident photons.

However, a small fraction of the scattered photons (approximately 1 in 10 million) are scattered by an excitation, with the scattered photons having a frequency different from, and usually lower than, that of the incident photons.

Since atmosphere consists of so many particles, if I consider the sky as a whole the Raman’s scattering effect will not be negligible. And the frequency of the emitted light is lower than the incident photons. So, when the violet light incident on the molecules of the atmosphere due to Raman’s scattering effect the atmosphere will emit light that is of lower frequency of violet. And so the effect of violet becomes the minimum.

         

I am not saying the reason for the sky being blue is only because of Raman’s effect but Raman’s effect is also the one of the reasons for the sky to be blue and not violet. 

Self working Light Bulb

This idea did somehow strike to me a few days ago. In my house we often used to charge the emergency light. I have been studying about Electricity and Magnetism chapter.

         

          I thought for a while to get a good way to solve this problem of charging. I don’t want to spend my money on this small light. I thought for a good physics way to get light with the lowest cost. But I finally found a light not only with lowest cost but also can give light for a long time.

         

The idea is very simple. It just deals with the faraday’s law of inductive effect that is changing magnetic field produces Electromotive force in a closed loop. But all we need is a strong magnet and a coil of many closed loop wires and a stand.

         

          It is just like a simple pendulum that is oscillating inside a closed loop. The model will be similar to the below diagram,

         

          The continuously changing magnetic field due to the magnet induces current in the closed loop. To get a maximum current, the magnet should have maximum strength and the coil should have maximum closed loops.

          To get rid of the resistance effect from the environment, the whole setup can be brought into a box of vacuum inside. So the external effects can be neglected. But this will not behave as a 100% efficient light source since there are resistive effects inside the closed loop itself. And there is resistance present in it and continuous current will heat up the coil and the resistance itself will increase with respect to temperature.

         

         The current is Alternating Current by means of the direction change in each period of the oscillation. But it will serve as a good light source.