Sunday 26 February 2012

Bubbles in water and oil

Y do bubbles of air in water move faster than in oil?
Its actually quite simple, something we generally learn in school in such a way that we need understand the practical implication of it.  Mostly, i did not understand the practical implications of the terms i learnt  in school. I guess, i was just young then.
I  should not move off the topic, ya it happens because water is less viscous than oil.
Yup viscosity the simple concept that i never really managed to understand in school. something that opposes any deformation in the shape due to stress.
In our case, as the bubbles move up they have to apply some force on the liquid they are in. This force is applied by bubbles is opposed by the force of the liquid to maintain inertia. It is still and it does not want to move on its own. See we are not responsible for being lazy, nature is. If the liquid has more inertia it will have a greater opposition towards the rising bubbles and the bubbles will move slowly and slowly.
hence bubbles in water move faster than those in oil, as water is less viscous as compared to oil.

Is The Ocean Blue???

Well, pure water is not blue in colour.
Its transparent essentially, meaning that  it has no general colour as such.
Ocean water appears blue because of the way in which light scatters in the water.
Deep see would be more blackish blue because of the absence of light.
Anyway that is actually not the  interesting part, the interesting part is how come the sky and the ocean both scatter light in the same way so as to appear blue. Both are in different forms and there are a lot of different characteristics. Is may be one of the reasons why it was believed in early ages that ether may be present in space.
By this logic it would seem that ether having properties similar to water would scatter light which then pass through the transparent sky and it would seem blue to us.
I wonder if this was one of the reasons. Who knows?

Friday 24 February 2012

Life


Human life is kind of stupid and funny both at the same time. I guess its the stupid intelligent part that makes it funny. Anyway, leaving that aside, why do we do all leave the way we leave in life?
We work because we need to, for ourselves and those depending on us. Then we work even harder because we want to satisfy all our desires and sometimes other desires as well. We work harder and harder to the point of being manipulated for the same reasons we chose to work. One way of justification could be if as it is we are supposed to live then why not live the best possible life. But then do we really have to work. Aren't there other methods to obtain money. May be simpler ways though they need not always be fair and right, but the worlds never fair as it is to begin with.
But really speaking, is that it, how lame are we that we cannot even think of a better reason. There has to be something in store......
Guess some curtains can never be raised.......

Wednesday 22 February 2012

Pain

why doesnt the pain end?
Is it the eternal suffering we must bear because we are bestowed with emotions or some other reason. I wonder if the saints ever felt sadness and/or happiness. Sadly, even when we are happy we somehow know that it wont last for long. Only if we didnt have this overwhelming shadow of sorrow, would we be prepared to sacrifice our happiness. I doubt this would happen. We would  rather keep all those pleasent thoughts wrapped around us.No matter how less the time it is sufficient to cover us in its warmth and tell us that if there is a sad time there will be a time when we can truly be happy.For the impatient lot, its just the right opportunity to be patient rather than just giving up on things.
No wonder life is called the best teacher.

Tuesday 21 February 2012

Seeing Objects


Why do we see objects only when light falls on them?
Generally we would refer to it as reflection taking place or some wavelength being absorbed, the rest of which are not absorbed are sent to our eye to see the light. But consider this
Photon is sort of an electron vibrating at a frequency were the energy of oscillation becomes visible or light is obtained.
Now, when this photon strikes a surface it is bound to share some energy with the electron in the surface thus forcing it to oscillate.  If the energy is released in the visible region then we may able to see it

Monday 20 February 2012

Law of relativity


 People see the perception of others based on other experience which they have had earlier. These experiences are stored somewhere deep in our mind and we react to it without even knowing about it. An obvious example would, if we feel people look approachable then we have a difference is in our approach to the one when they don’t feel so. Thus, having a relative approach depending on the situation. This only states how much of an impact a-priori knowledge has on the individuals views. To that end voting campaigns if made sufficiently prior and if it is made sure that people make a note of it in their minds then they are more likely to vote if they go without having a conscious notion of voting to a particular party or not voting for a particular party. And amazingly all this is just a conclusion of the theory of relativity.

Saturday 18 February 2012

Emotions


We often say that emotions are most complicated to understand and comprehend. Is it actually that way? We think too much. There is that small bunch of threads linking the two hemispheres of the brain which creates all the problems. Cut the thread ,well you may loose some sight and speech, may be more things, but we will get something very rare. The ability to think freely. Hell, I m no expert in split brain surgery but that way emotions would be unbiased of logical sense. I feel the same may be happening when we get angry. Probably the blood circulation to the left brain may be reducing and increasing the dominance of the otherwise snotty right brain. Enabling us to blurt out irrespective of the situation and consequences of our logically divorced actions. Simply put, Emotions aren’t complicated we just don’t let them come out. We think too much and do too little.

Friday 17 February 2012

tennis

Lawn tennis is an amazing sport, it requires  both stamina as well speed.There have been great players in the past from ivan lendl to pete Sampras and now what is currently called as the most competitive phase where the top four are almost there in all the grand slam semis. The sport is at a peak for sure. There is one thing that is slightly bothering in my opinion is that now a days most of the players are power players. I don’t know but some how the elegance factor is missing from the new players. For one i feel its because of the courts. The courts are becoming slower and slower. May for the spectators or tv audiences the courts are being made slow but it isn’t i feel helping the talent in the sort to bloom in the form of elegance. Rafa is amazing player not doubts about that. He runs a lot but would this same type of play be possible on faster courts.The more the courts become slow its sort of an advantage to him.  The slower court implies players have more time to strike the ball and thus most of the players are hard hitting players. Huge serves and extremely hard hitting. Its sort of fun to watch but that grace factor or on court charm when someone hits a shot is missing. Its just the grunt that we can hear. I feel that if they make the courts faster there would be more variety in the tournaments in terms of playing conditions as well as all types of playing styles would be encouraged.

Wednesday 15 February 2012

love

What our mind perceives as romantic is mostly based on pictures and movies which we see.No wonder its so complicated.But romance, its not something complicated or artificial it's embedded in nature itself.We just have to open our minds to see what we generally ignore or rather misunderstand.Butterflies playing around in groups can be so romantic.Or the squirrels dancing on branches Or simply grass swaying back and forth as though playing around on a totally different note. Being in this calm but mind boggling nature can be romantic beyond our imaginations.That's just how nature is every time we think we understand something it goes a step ahead and tells, inspires us this is what I am and this is what u never saw

Tuesday 14 February 2012

pyramids

i was wondering that day how pyramids might have been built
most of the people said that they made huge cranes or machines equivalent to cranes to lift the stones
and place then in perfect symmetry
i feel this is sort of extremely difficult to do
instead Y couldn't they have have kept the first layer of stones and then instead of lifting the stones
above the height of the first layer just move the sand so that the ground level would rise in the form of a ramp where the stones of the second layer can be placed without any lifting
this can be precisely done to form the shape and keep the dimensions intact
ya if you are thinking that at the end of the construction the entire pyramid would be covered in sand
true
it would be but moving the sand again is simpler than lifting the stones
as it is they had generations of people working and unlimited funds to do it
or
they could have kept the pyramids buried as well
in many cultures the dead are buried may be the pyramid was also a giant underground tomb

Questions

we have been trained for a long time to not to ask questions. Sometimes we suppress what we feel
sometimes we are just afraid and many more things may also happen but importantly we dont ask
Y is this working, Y do we eat this, Y is the sky blue, Y are plants green, Y do we follow certain procedures as prescribed by our elders, Y use this method Y not any other
Mostly when we do have the courage in our childhood to ask such questions we are  shot down.
well there can a be a lot of causes for this
one of them may be the person whom we asked did not know the answer or may be we were too young to understand the answer and the reasoning or may be we are too blind to see that the reason is actually in front of us
whichever way i felt i should try to make a small effort for answering some of the questions which i faced as a child
may be answer some questions which my friends faced or take up any questions and try to answer them to my fullest ability.
i didnt want this to be only on some study topic but in general to apply science to our daily life
because i feel that science cannot be taught from text books it has to be learnt through experience and sharing knowledge with each other. through our own struggles to obtain knowledge apply that knowledge and then teach others to apply it
atleast this is my idea for this blog
i hope i can increase the curiosity of people towards their surroundings