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পোস্টগুলি

ফেব্রুয়ারী, ২০১৯ থেকে পোস্টগুলি দেখানো হচ্ছে

Honesty and integrity

Honesty and integrity is so far different things. Honesty is a habit. But integrity is more important than honesty. It is a knowledge about right and wrong. What should be do and what should not to be done is the lesson of integrity. Peoples should be more integral to be a original human being.

Dark matter

Dark matter is thought as a form of a hypothetical matter and it is considered that about 85% of our visible universe is composed with dark matter. More interesting fact is that the Quarter of the total energy density of universe is come from dark matter. Dark matter may be baryonic and non-baryonic. But most of the form of dark matter is non-baryonic in nasture. Dark matter is named as following the phenomena that it is not observable within the electromagnetic radiation or in light. There have a lot of evidence of existing dark matter in universe. The primary and first phenomena of galaxies flying apart instead of rotating or moving and not behaving as they should do happens due to lack of dark matter inside galaxies. Another evidence of existing of dark matter is found from the existence of gravitational lensing, cosmic microwave background radiation, From the formation and evolution of galaxies. If dark matter is exist then it is thought that it will interact with the ba

Are todays child are more self control than previous child?

Most of the adult people thought that todays child is less self control than the child of previous day. But scientific research on different ages child shows opposite result. The marshmellow, test on the child of 1960 and 1980 shows the waiting nature of child is less time than the child of 2000. Previous child are found to be very hurry up to eat that the food were allowed for them to eat. But test on the child in 2000 shows some deviation. They found longer time to wait. In that case the decision is taken that the child of now a days is more self controlled than previous child. The delay gratification is getting more longer than previous. Delay gratification is something means gratifying on something in late. Delay gratification have a power. The people who foud to gratify in delaying on any reward have found to do best performance in future.

Ego defense mechanism

Human mind have two side. Constructive and destructive. Two ego belongs togather. Human mind wants to get pleasure. To get pleasure human have to drive various activity. But peoples fears about their activity because real world restricts to do each and every work. When peoples want to something then his ego defence mechanism restrict him to do this. For that reason there continuously happen a strugle between should do and should not do. This struggle within human mind is termed as ego defence mechanism.

Solar system atomic model

Solar system model is a model consist with sun and its planets revolving surrounding itself. The sun is the center of solar system and the rest of the planets revolves surrounding itself. There have two kinds of motion of planets during revolving surrounding the sun. One is elliptical motion and another is spin motion. Rutherfod introduce a model of atom and find a similarity of atomic behavior with our solar system. For that reason Rutherford called Solar system atomic model. Rutherford atomic model is described bellow, Atom is consists with heavier nucleus in its center and revolving negatively charged electron surrounding itself. The entire mass of atom is concentrated into nucleus. The volume of nucleus is negligible comparing with the volume of atom. Just like our solar system, how the planets revolves surrounding sun, the electron revolves surrounding the nucleus. During revolving electrostatic, centrifugal and centripetal force between electron and nucleus is equ

Uncertainty in life

We feel anxiety about our need and want. There no limit of need in life, therefore no limit in want. We want everything what is beneficial in our life. Peoples behavior is to get peace and comfort in life. The ultimate word is to becoming happy in life. I am not indicating the need of happiness is only concerned with human being. Besides of human, animals and plants, moreover all living organ search happiness. Each and every pleasurable events gives happiness. From chewing a chocolate to conquring a land everything gives happiness. Winning and gaining both word is synonymous but different. People wants to win or acquiring something that significantly may provide pleasure to him. He drives to acquire it. He take effective action to acquire these. There started anxiety before it achieving. Because, there have uncertainty. It is not sure it will be owned or not. In each and every event, we find uncertainty in life. Every event in nature also exists uncertainty. Black cloud in sk

NASA

NASA at a Glance