Vertebrate population dropped about 60 percent.

Very alarming news of extinction causing in world animals. A large scale of animals are getting extinction due to certain cause. Most of the cause are men maid. The worlds environment is getting unfavorable to survive.

According to WWF, the plannets vertibrates dropped about 60 percent since 1970.
Seabirds are foumd plastic in their stomach.


Freshwater species is declined about 83 percent since 1970.


The major cause of declining of animals from our plannet is water warming, increasing of atmosphere temperature. Rappid industrialisation and unprotective method of discharging of industrial waste.

A destabilized climate can not give people  happy and healthy life.

Stanford University Lecture: Quantum Mechanics

Stanford University Lecture on Quantum Mechanics

Electroweak theory

To describe the electromagnetic force and weak force together electroweak theory is emerged. The basic difference of weak force from electromagnetic force is that electromagnetic force acts in large scale where weak force is active in small scale. The distance like a range of atomic Nucleus weak force is found. But electromagnetic force attraction is found in large scale.

Sunlight is an electromagnetic force. It comes from sun from a large distance.

Fundamental interaction

There exists four fundamental interaction in universe. Four fundamental interaction in universe is as follow,


weak force



Due to strong force formed. It acts between quarks that bind proton and neutron.

Weak force:

 Interaction between electric field and magnetic field creates electromagnetic force.

 Interaction of any objects in universe is gravitation.

How to control gastric problem

Most of the people may found with gastric problem. It is very difficult to identify clearly that what is the root cause of gastric problem.

It is a digestive system disease. That may cause by various factors. HCl is a gastric acid for digestion. Chemically it is Hydrocloric acid.

What we eat, there need digestion. HCl plays an important role in digestion. When HCl releases in digestive system in a uncontrolled rate then gastric problem is seen.

Medication can control gastric problem. But there need life style change. Frequent moving, excersise can control gastric problem more effectively than medication.

Regular scheduled mealing is another factor that significantly control gastric problem.

Universe

Universe is a region including space and time with its another contents.

The contents of universe is stars, galaxies, all of the matter and energies.

It is very difficult to measure the exact size of the universe. But observable universe and its size is possible to predict.

It is thought that our observable universe is super symmetric in nature.and the symmetry is converting simple symmetry to complex symmetry through a continuous symmetry breakdown.

In universe 4.9% is baryonic matter, 26.8% dark matter and 68.3% dark energy.

According to Lambda CDM model the age of universe is approximately 13.799±.0021 billion years.

The historical background of universe started by Greek and indian philosopher considering earth as a center of the universe.

The heliocentric model of universe is developed by Nicholaus Copernicus by considering sun as the center of all planets.

Fuzzy nebulous object

Nebula is a latin word that means cloud or fog. It includes dust, fog, cloud or other astronomical object. Nebulae is any astronomical objects including galaxy beyond the milky way.

Andromeda galaxy is reffered as andromeda nebulae and spiral galaxy is reffered as spiral nebulae.

Nebulae are very big in size. Some may be hundred of light year diameter. From earth any nebulae may look very big, but not brighter. The brighter nebulae near earth is orion nebulae.

Nebulae produces by stars. Some of the nebulae is found to form by gas that is in interstelar medium.

Supernovae plays an important role in producing nebulae. supernovae explosion of stars throw some massive cloudy objects that forms nebulae.

Most of the nebulae found are diffusion nebulae. Diffussion nebulae have no exact boundary. Emission nebulae and reflection nebulae is such types of example of diffusion nebulae.

When lower mass stars undergo into stellar evolution, the final stage of steller evolution of lower mass stars forms planetary nebulae.