Distinguish or differentiate between free vibration and force vibration

 Distinguish between or differentiate between free vibration and force vibration

Hello dear all readers,

Welcome to this concept, here in this content you come to know about the difference between free vibration and force vibration.

After knowing this concept your doubt really really solved on free vibration and force vibration.

So let's start the concept !

Free Vibration

i) In the free vibration, this free vibration produce when a body is disturbed from it's equilibrium position.

ii) When we have to start the free vibration, than only initially required force to start the free vibration.

iii) The frequency of these free vibration is depended only on the natural frequency.

iv) In the free vibration, the energy of the body remain constant or remains as it is, in the absence of friction force, air resistance, etc.

Due to the damping force, the total free vibration energy get decreases.

v) The amplitude of the free vibration get decreases according with time.

vi) The free vibration, stop vibrating sooner or later depending on the damping force.

Force Vibration

i) The force vibration are produced when we apply an external periodic force of any frequency on it.

ii) The continuously external periodic force is requires for the force vibration. If we will stop applying of an external periodic force on force vibration than force vibration will also stop.

iii) The frequency of force vibration is depended only on the frequency of the external periodic force.

iv) The energy of the body is maintained or we can say in other words that, the energy of the body remains constant by the given external periodic force.

v) The amplitude of force vibration is get small with time but remains constant as external periodic force acts on it.

vi) The vibrations get stop as soon as external periodic force is stopped.

So we hope you understand this concept very clearly and nicely in great understanding way.

Astronaut feels weightlessness or zero gravity in an orbiting satellite

Hello dear readers,

Do you ever feel zero gravity or in other words we can say that, do you ever experience weightlessness on the planet earth ?

Of course my friend, the answer is no !!!!

When an astronaut go in space via a satellite. 

They experience or feel zero gravity.

When I am talk about zero gravity, it's not mean that the astronaut body weight become zero in the satellite.

Actually you know that, what's the philosophy behind this ???

When we stand on the planet earth, our body weight exert some amount of force, so on the other side the planet earth surface also exert force in equal amount.

So because of that, when both forces come together they get nullify or in other words we can say that both these forces balance with each other and finally we not feel any kind weightlessness.

Actually in the satellite, the body weight is not get zero.

In the satellite also our body exert equal force as like on planet earth surface. But the point is that, when our body exert force on the floor of the satellite but in turns satellite does not provide normal reaction on the astronaut.

So therefore astronaut experience or we can say that they feel weightlessness or zero gravity in the satellite.

Here are the some condition, which is responsible for weightlessness or we can say zero gravity in the satellite.

i) The most common problem experienced by astronauts in the initial hours of the weightless is known as or called as space adaptation syndrome (Space sickness).

ii) The weightlessness in a satellite is independent of the height of satellite from the earth's surface.

iii) In the weightlessness or zero gravity condition , it is very hard or difficult to control the movements of our body as it tends to float freely.

iv) In the case of the weightlessness or we can say in the case of zero gravity, it is not necessary for the weight to be zero. 

The weight may be more or less than it original or actual value. This weight is called as or known as apparent weight.

The most amazing view of pen nib under in microscope, you must see this

 The most amazing view of pen nib under in microscope level, you must see this !

Hello dear all readers,

Welcome to this new concept,  so in these concept you come to know that, how our pen nib look or we can say in other words that, how our pen nib visible under in microscopic level.

We hope, this concept really touch your heart in great way.

The pen, which we use in our day to day life. For doing our home work, for office work, business and service sector etc.  

Pen play a very significant role in our day to day life. Without pen, nothing can going smoothly of any office work, school work, or simply a common work also, isn't ?

Have you ever try to see the nib of pen, how it looks ???

The size of pen nib is really very small, we are not able to see this pen nib clearly with our naked eye, isn't ?

If you want to see these pen nib very clearly than you can see very clearly and nicely under in microscope level.

When you see the pen nib under microscope, so it will give you a clear vision and you able to see the different different beautiful design of these pen nib.

Here you see this image of it !!!

Isn't, it ? Amazing !

If you get chance to do this experiment, than you must not neglect this golden chance of experiment with this pen nib.

It's really a great experience to the pen nib under the mocroscpoic level.

It's really looking so much beautiful and wonderful scenerio.

When you do this experiment, with your own, you may able to visible 3d model of pen nib.

Which is really really you feel great experience and great scenary of these pen nib.

So if you take different different pen size and pen thickness. According to that, you get different different pen nib scenerio and you are able to see the different different pen nib design.

So we hope you like this concept in great way experience mode.

Mostly flocks of birds prefer to fly in V shape formation, did you know that why ?

Hello dear readers,

Here you come to know the most amazing and interesting scientific fact.

So let's explore this scientific fact,

When you go to garden or we can say whenever you go for walking in morning or evening time. Most of all you noticed that many flocks of birds flying together, isn't ?

But do you observed that, why they fly together ?

In the whole world, without any reason, there is nothing can exist. Right na!

So here my friends, some science is behind this fact, which make work of these birds easy.

So how these science make easy work for these birds in fly ?

The flocks of birds like geese and pelicans mostly they prefer to fly in V formation to make flight easier.

So actually what happened in V formation?

In V formation, when bird flap it's wings.

The air behind the bird gets pushed downward or we can say push towards below side, creating a down wash.

While the air around it's sides gets pushed upward or we can say push toward above side, creating an upwash.

So these circumstances produce rotating vortices.

And if we talk about another bird, which lies behind first one, than if these bird flies in upwash zones or we can say in other words that, when these bird flies in upward zones, than it gets a free lift and glides because of reduced of air resistance or we can say air opposition force.

So therefore birds are able to fly such long distances, wihout putting much more effort.

And also along with these, it's maintaining a clear line vision or we can say sight of direction.

Here you see in this picture or image of birds flying together.

The first bird, which fly at front side of all and other is fly behind that bird.

So the bird which fly at front side or we can say first bird, so it faces greater air resistances or we can say it faces greater opposition of air force.

So therefore, the birds keep chancing their position in the V shape formation and take as leader position means that they change position in place of flying first bird.

By doing like that, they feel easier and comfortable during their fly journey.

Because of this, it's minimizing the uses of each bird's energy.

So therefore, these method keeps allowing these birds for fly without having to stop.

Do you know that, how an artificial satellite using two stage rocket is launched in an orbit around the earth ?

The satellite, which launched in space they needed minimum two stage rocket. What they are, let's know here ???

 when satellite is on the planet earth, they need or we can say that they required two stage of rocket to reach in space for revolving around the planet earth.

So let's know complete steps of launching of satellite in space.

i) So in the first step, the satellite kept or we can say place at the tip of the rocket.

ii) In the second step, the fuel in the first stage rocket is fired or ignited, so it gives the satellite vertical velocity.

iii) In the third step, with the help of this first stage rocket, the satellite attains or we can can say it get it's desired height or position.

iv) In the fourth step, when satellite reach it's desire height or position than by remote control, the empty first stage rocket is detached and the  rocket is rotated through 90° so that it points in the horizontal direction.

v) In the fifth step, the fuel in the second stage rocket is fired or ignited, so that with a particular amount or value the satellite is projected in horizontal direction.

OR we can say, 

Because of the second stage rocket satellite get the particular value of horizontal velocity in the horizontal direction.

vi) In the sixth step, when the fuel in the second stage rocket is completely burnt, than the second stage rocket also get detached from the satellite.

vii) In the seventh step, the gravitational force acting on the satellite is exactly equal to the centripetal force which is very helpful to keep the satellite moving in a circular orbit round the planet earth.

viii) Now in the last step, the motion of the satellite depends upon the velocity of the projection given to it.

So here we hope you understand this whole concept about the "two stage rocket required for launching the satellite in space" very clearly and nicely in easy and great learning way.

Why image or photo of an earth is only in white, blue, brown, yellow and green colour ?

Hello dear all readers,

welcome to this new concept, this concept is going to be very interesting and knowledgeable.

We come with a new topic which is, why image or photo of an earth is only in white, blue, brown, yellow and green colour ?

So let's know this concept in very simple and easy way.

Do you ever think on it and guess over this thing ? Why is this happen ?

For all of us, the earth is our mother. Where we live freely, happily and taking all facilities of natural resources.

In the all planet, the earth is only favorable or we can say suitable planet for all living creatures.

The planet earth is livable for all plants and animals, on the planet earth whatever requirement for living purpose, the all require needy things are available easily.

We live on earth's land, and we don't have any experience to see the earth from outer space, isn't ?

So many questions are coming into your mind, isn't ?

Actually, we know that planet earth is covered with clouds, snow ice, water and land.

So it means that, the blue part of earth's covered with water, that's why earth look in blue colour. As you know that, water covered the earth is approximately 71% .

So that, the huge amount of planet earth is covered with water.

The white swirls or we can say in other words that, we see the eath in curly round of white colour which we see on the earth is only because white clouds.

The brown, yellow, and green parts of the planet earth are covered by land.

And the last one, the white portion of planet earth, which we see in white colour. 

The only because of these white clouds, which we see in the sky.

So we hope you understand this concept very clearly and great understanding way.

Do you ever think, why our sky is blue colour ?

 Do you ever think, why sky is looking in blue colour ?

                                     

Do you think over this fact, why this sky is in blue colour ?

So I am give a minute to you for guess, why sky is in blue colour ?

Tell me answer via your reply in the comment box.

So we move towards to exploring this scientific facts.

When we see in early morning, what we see in the sky ?

We see the sky appear in blue colour, isn't ? 

Many of us ask question like that "we not see sky clearly in the day time" so my friends we can easily visible the sky in early morning. Means at 6 to 9 'o' clock in the morning time.

So let's move to our concept !!!

For understanding this concept, first of all I want to know from you all, what is the colour of our sun ???

Orange ? Yellow ? Blue ? So if you suggest this answers, than my friends of course not a right answer is this.

Actually sun gives pure bright white light to the universe.

So you may get little confuse about this, the sun gives white bright light than how it is possible sky appearing in blue colour, it is to be appear in white colour na ???

So before we go to in detail of these scientific fact. We  know the step by step all concept in very finely.

Did you know that, the distance between sun and earth is 150,000,000 km is such a vast distance between sun and earth.

So that it is the distance, which the sun light rays travel through and reach at the earth surface. So it means that light travel between sun and earth is 150,000,000 km.

So as we know that, the sun emits all kinds of electromagnetic light. Electromagnetic rays emits by the sun is -

 i) Gamma rays

ii) X-rays

iii) UV - rays

iv) Infrared rays

v) Microwave

vi) Radio waves

And the visible light is Violet, Indigo, Blue, Green, Yellow, Orange, Red.

So all these together emits by the sun.

So when electromagnetic rays enter into our earth.

We human being can't able to perceive or we can say in other words that, we can't see these Gamma rays, X-rays, UV-rays, Infrared, Microwaves, Radio waves with our naked eye.

So most of the electromagnetic Gamma rays, X - rays, UV rays block's out by the earth's atmosphere.

We human being only see the visible seven colours, which is violet, indigo, blue, green, yellow, orange, red.

So all visible light spectrum is only compose by these three primary colours is Red, Green, Blue colour light.

So when these primary colours come from the sun and enter into the earth. So let's understand what happen with it ???

Take an example, consider if one side of rope is tied at the tree and other side of rope you just hold in your hand, when you move the rope up and down with less force than rope moves with less force.

So it means that, the number of wave is less and the wavelength is larger or maximum.

And if you pull rope up and down with forcefully than the number of wave is more and wavelength is smaller.

The scientists discovered that, when the wavelength is smaller than it's scatter more light.

When the wavelength is larger or maximum than it's scatter less light.

So as we know that,

Wavelength of red > Wavelength of green > Wavelength of blue

 So that first of all  let's know about, how these Red light scatter in earth atmosphere.

So as you know that, the wavelength of red light is maximum, so that it scatter very very less or you can say negligible.

The reason is, the red light is easily passes through the dust particles and molecules.

So therefore, it is less scattered.

Let's we go to the green light,

Now here in this green light, the wavelength of green light is less than as we compared to the wavelength of red light.

When the green light collides with the dust particles and molecules.

So therefore these green light is scattered more as we compared to red light.

And now we move towards the blue light,

And here we come to last colour, which is blue colour.

So in this, the wavelength of these blue light is very less than that of green light.

So when it's collides with the dust particle and molecules, than it's scattered mostly.

So here we judge from all these three colours than we come to the conclusion that, the maximum scattering of light is blue light.

So therefore we can see blue light in the sky during day time.

We hope you understand the whole concept easy, fun and learning way.

 The problem face by astronaut in space

                                  

Hello dear all readers,

Welcome to this blog post, today's we come with a new topic.

Which problems face by astronaut in space ?

 In during your childhood , when you see any spacecraft or rocket, when it moves towards space. 

You fill with lots of desire to reach and travel to space world.

We feel happy and pleasure , whenever we see launch space craft in space, isn't it ?

But do you know that friends, these journey is not quite easier.

To struggle with many problems than our astronaut reach to space and do their research.

So here we know about all these problem which face by our astronaut in space.

As you feel on the planet earth , our legs carry the weight of the whole body in the normal position due to gravity force.

So as you know that , in space there is not existence of these gravity force. So it means that, in space we not feel any gravity force.

So therefore the astronaut in space is in weightless state. Hence swollen feet may not affect his working in space.

In these weightless condition, the face of the astronaut is expected to get more circulation of blood. Because of that, the astronaut may develop swollen face.

As eyes, ears, nose, mouth, are all these sense organs are embedded in the face. So therefore swollen face may affect these senses of seeing/ hearing / smelling / eating all these capabilities of the astronaut in space.

And if we talk further than  the headache persist whether a person is an astronaut in space or he is on the planet earth. Headache is because of our mental strain.

So therefore the headache will have the same effect on the astronaut as well as person on the planet earth.

And if we know the last problem, which face by astronaut in space is orientation.

The space also has orientation and the frame of reference. So therefore, orientation problem will mostly affect the astronaut in space.

So friends hope you understand this concept very clearly and nicely in easy way.

 Do you ever know that, water is live and it has memory

                                   

Hello dear all my readers,

Here we are going to discuss and know more in detail all about water memory.

So the water memory is the philosophy is quite interesting to know. Because it surprises us to by it's reaction on our action, feelings and whatever we speak our speaking words. 

The water instantly react on our each behaviour and our each performing action. 

It is really very very quite interesting to hear this philosophy.

And I hope you also very surprised after know complete philosophy of this water memory.

In many many years ago, the life is start on planet earth is from the ocean. Nothing is exist on planet earth without water or we can say nothing is exist without presence of the water .

The water is a very precious and god grace for all living creatures on the planet earth.

The all activities which we are doing in our whole day, is all possible with this water only. So that without presence of water nothing can going smoothly, all can get destroy from this planet earth or we can say, we cannot imagine our self without presence of the water.

In japan one great scientists 'Masaru Emoto', who wanted to know that, what is the effect of our thoughts, emotion and feelings on the water.

So for that they conducted many experiment on this water. And they are very eager to find out , what happen with this water by our thoughts, emotions and feelings.

The japanese scientists Masaru Emoto, they conduct an experiment on the water. 

For performing an experiment on this water, they took three samples of the water in a bowl, and they put rice in it.

So along with this bowl, they write one-one word and stick on each water bowl surface.

And he kept it for nine week, and when he came return, what does he saw ??

He saw that, the rice in first bowl is get floffy with good appearance and in second bowl rice is become disgusted or worst and the last third one the rice is good as we compared to second one.

So in your mind one question is rotates and you keep thinking so much on this experiment, how is this happen with same water and same rice ???

There is not any blame of the rice quality. But the all happen ,is all because of our writing thoughts on water bowl surface, therefore the water react on it.

So what they wrote on the water bowl surface ?

i) In the first water bowl surface, he wrote "Love" word.

ii) In the second water bowl surface, he wrote "Hate" word.

iii) And the last third water bowl surface, he wrote "Ignore" word.

iv) In the first water bowl surface they wrote 'Love' word, and they daily say "I love you" , "You are very valuable in my life", "You are my best friend" , by using these good and positive words upto nine week.

And what happened after, the result you know already. The water crystals change it's molecular structure and form a bright shiny stars.

v) In the second water bowl surface they wrote 'Hate' word, and they daily say "You are so ugly", "Go and kill your self", "You have not any value in my life" by using these bad and negative words upto nine week.

So what happened after all , as you know from above paragraph. It crystals changed such a way that, the appearance of these crystal are become so ugly and roughly.

And the rice which added in it, it completely get rotten.

vi) And the last third one, on the water bowl surface they wrote 'Ignore' word, and they daily see that bowl and they behave as ignorance.

Which mean that, the water crystals feels or react as nobody cares for it.

As like that so many words have their different different effect and feelings.

In our life also, we should use those positive and good words, when we speak someone.

In our social and family life also, these words play very vital role. These words breaks the relationship and make bonding of the relationship.

So you know that, how these water memory effect rice with different different words.

So like as water, we also made from 70% of water. So you think, how this words effect on us.

By applying this formula of water, we can change our self into positivity and productivity.

In our whole life, the contribution of water is 70%, you know that it's not a less contribution, it's a very huge contribution by the water.

So you know here, how these water change it's molecular shape according to our thoughts, feelings and emotions. Likewise this water is in our body, which contribute us upto 70%.

So whatever we think good or bad, it's directly effect on us. It's very very great fact of the day.

So therefore you must have also try this experiment on our self. By taking help from this water memory we can easily transform our life towards positivity. 

And this water memory really really help us to changing according we want.

So we hope you understand this philosophy and concept very clearly and nicely.