WHAT HAPPENS WHEN YOU BREATHE AIR?

WHAT HAPPENS WHEN YOU BREATHE AIR?



Now I am going to say the processes that happen when we breathe.

When we inhale, oxygen enters into our body. The oxygen enters into lungs through nose. The lungs absorbs the oxygen. This oxygen is given to the deoxygenated blood. The deoxygenated blood is where there is no oxygen content in it but only carbon dioxide . So when de oxygenated blood is given oxygen it becomes oxygenated blood. The oxygenated blood enters into the heart. The heart pumps the oxygenated blood to each and every part of the body. The oxygen in the blood is then absorbed by the muscle. The muscle gets energy by taking in the oxygen and thus does work. The muscle after doing work releases the carbon dioxide into blood. And the blood again becomes deoxygenated. This deoxygenated blood again goes to the heart. from heart it goes to lungs to get oxygenated and the cycle continues.

SO THIS IS WHAT HAPPENS WHEN YOU BREATHE. THESE THINGS HAPPEN IN FRACTION OF SECONDS 

Brief information about power generation in thermal ,nuclear and by solar , wind

In this post I am going to discuss about how electricity is generated.

We all know that energy can neither be created nor be destroyed it can be transformed from one form to another. Using this very main concept power is generated.

There are actually two ways of it
power generation by using renewable energy sources and
power generated by non renewable energy sources

power generation by using renewable energy sources
power generation done by renewable energy sources is less when compared to non renewable energy sources.
renewable energy sources are those which can be reused. For example: solar energy wind energy.

Solar energy is found abundant through sun rays. It cannot be extinct after using it.

Solar energy is converted into electrical energy by using solar cells.
solar cells are electronic circuit which converts the light energy into electricity. The energy hence generated will be D.C and can be later converted to A.C by inverter and can be used for our domestic purposes

Wind energy is converted in to electricity by installing wind mills in a suitable area where wind flow is more. whenever wind floes it rotates the turbine or the fan. The turbine is coupled to the generator through gear box. The gear box is used to speed up the revolutions.


power generated by non renewable energy sources

Examples for non renewable energy sources are : thermal, nuclear Etc.,

In thermal power plants coal is used as fuel. As we all know a fine quality coal catches fire easily.
In thermal power station coal in burnt in the burner and that hotness is used to convert the water into steam. The steam which is generated is used to rotate the turbines. Turbines are specially made to rotate at high speed. This turbine is coupled to alternator or generator and hence power is generated

The process of power generation in nuclear powerplant is similar as of thermal power plant except that Uranium is used as fuel instead of coal. And there will be no burning. heat is generated by the fission process. A neutron is made to bombard with Uranium it releases enormous heat and three extra neutrons. this is a chain reaction . As i mentioned an enormous heat is released, this heat is used to convert water into vapour and it is again used to rotate the turbine. turbine is coupled with alternator and power is generated.

Black holes

Today I want to discuss about black hole.

in this post i am going to give you a brief  information regarding the black holes and the theories that are realted to it

SO FIRSTLY, WHAT IS A BLACK HOLE?

Black hole is a strong gravitational force caused by the explosion of a star. the gravity is so strong that even light cannot escape it, hence the name BLACK hole.

It is believed that any object or a particle which is sucked into the black hole will be disappeared, or its lost. But according to Stephen hawking, any object that is sucked into the black hole can have an exit, but in an another galaxy.

The boundary of the black hole is generally termed as event horizon. after many researches it is believed that there is a big black hole in centre of the universe.

But on the other hand, NASA said that there are no black holes. Last month NASA announced that two of its space telescopes caught a huge burst of X-ray spewing out of a super massive black hole.

These flairs appeared to be be triggered by the eruption of a charged particle from the black hole, which according to conventional belief doesn't let anything out.

The latest findings are in accordance with the theory of Indian astrophysicist Abhas Mitra who had theorized that the black holes are actually ultra hot balls of fire like our Sun.