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Showing posts with label Physics. Show all posts
Showing posts with label Physics. Show all posts

Sunday, 23 August 2015

Amazing facts - general

1. The amount of heat in the Earth’s entire atmosphere is equivalent to the heat present in the first ten feet of the ocean.
2.The flashing lightning bolt is 3 times hotter compared to the sun, seems like the sun also has to face competition.
3.The flashing lightning bolt is 3 times hotter compared to the sun, seems like the sun also has to face competition.
4.Stephen Hawking was born on January 8, 1942, 300 years to the day after the death of Galileo.
5. Einstein's famous theory of relativity, E=mc^2 is also used in GPS on the car.
6.You can convert graphite into diamond by applying a temperature of 3000 Celsius and pressure of 100,000 atm.
7.The bark of the redwood tree is fireproof.
8.The Atlantic Ocean grows at about the same rate as your fingernails.
9.The only rock that floats in water is pumice. Think of Ramayana.
10.A solar panel 100 miles by 100 miles (161x161km) in the Mojave Desert (USA) could replace all the coal now burned to generate electricity in the entire U.S.
Source : Around the web.

Saturday, 15 August 2015

General terms

                               Viscosity
It refers as 'thickness' of a liquid. It is resistance of liquid to flow.



                            Mass


The mass of an object is a fundamental property of the object; a numerical measure of its inertia; a fundamental measure of the amount of matter in the object.

                          Weight


 The weight of an object is defined as the force of gravity on the object and may be calculated as the mass times the acceleration of gravity, w = mg. Since the weight is a force, its SI unit is the newton.



                           Density


 It is mass of the matter present in a fix volume.
          

Friday, 14 August 2015

Energy

                              Energy

We sometimes describe energy as 'ability to do work' like spinning, running, heating etc. All these activities need energy. By the law of conservation Energy can't be created nor be destroyed e.g. if you switch on the fan the electrical energy is converted into kinetic (motion) energy and heat energy.
The main source of energy is the sun,
The light energy of sun is converted into chemical energy and used by plants which then eaten by us. There are many type of energies around us-

1.  Kinetic energy  is energy acquired a                object when it gain motion for example I      started walking then I gained kinetic              energy.
2.  Potential energy  is latent energy of                stationary object which when force is            applied convert into kinetic or any other      form of energy.
There are many more types of energies but I'll explain it later.

                               Work
Work is done when force is applied to an object and it displaces from its initial place.
It is usually expressed as (W).

                               Power
Power is rate of doing work e.g. two boys climbs a hill one did it faster than she said to be possess more power.

Thursday, 13 August 2015

Quantum mechanics

Quantum mechanics is a branch of physics deals with description of physical phenomena at atomic and sub-atomic level. It state that many concepts concerned with physical objects and energy behave differently. It provides accurate description of behavior of photon, electron etc.

  It's applications include super conducting magnet, LEDs and lasers and description for many biological and physical phenomena.

Max Planck is considered as father of quantum theory as he corrected Ludwig Boltzman and Wien's law.

He also proposed the formula:
   E= hv, where E is energy element and v is frequency. h is Planck's constant. 
Read more here.


Wednesday, 12 August 2015

Reasons

It's being a boredom for me to have nobody matching my curiosity for science around me. So now I started this blog for sharing my knowledge and experience to my reader.