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Who was the longest prime minister of India?
The longest-serving prime minister was Jawaharlal Nehru, also the first prime minister, whose tenure lasted 16 years and 286 days.
The longest-serving prime minister was Jawaharlal Nehru, also the first prime minister, whose tenure lasted 16 years and 286 days.
See lessWhich religion is most in Israel?
According to 2022 Israel have 73.6% Jewish, 18.1% Muslim, 1.9% Christian, and 1.6% Druze.
According to 2022 Israel have 73.6% Jewish, 18.1% Muslim, 1.9% Christian, and 1.6% Druze.
See lessHow old is the age of 32 teeth?
Official time is 18-20 but may be less or more. But not all people have 32 teeth.
Official time is 18-20 but may be less or more. But not all people have 32 teeth.
See lessWhat is philosophy?
❝A Very Short Talk on Philosophy and Science❞ vision A thing that is hard to define. Philosophy is understanding the nature of the world and life. Philosophy attempts to provide a rational explanation of all fundamental questions about the world. Like, who are we? What is the reason for our existencRead more
❝A Very Short Talk on Philosophy and Science❞
vision A thing that is hard to define. Philosophy is understanding the nature of the world and life. Philosophy attempts to provide a rational explanation of all fundamental questions about the world. Like, who are we? What is the reason for our existence? What is consciousness? What is the nature of truth? What is truth and knowledge the same? Where does morality come from? God is there or not? etc. According to Schelling, ❝Philosophy is the attempt to determine what the world must be in order that it may be understood by mind, and what the mind be in order that it may understand the world.❞. It is the task of philosophy to synthesize fragmented truths and give intelligent ideas. This work is done in three ways, Speculatively, Critically, Constructively. The field of vision is vast. In short, all knowledge is dependent on philosophy. Just as the phylogenetic tree is drawn in the theory of evolution, if we draw a phylogenetic tree including all the knowledge of the world, we will see the philosophy at the root from which other knowledge has originated as branches. Philosophy originates from skepticism about life and the necessity of life.
Science originates from philosophy. Philosophy tries to explain truth holistically, but science tries fragmentarily. Both have the same purpose – to explain the world. The conventional method of science is based on observation and experiment but philosophy is based on logic. This argument can be made in various ways, induction, deduction, abduction, contradiction etc. Science deals with the material world, science says nothing about whether there is anything beyond matter. But there is a branch of philosophy called metaphysics that deals with “beings” outside the material world and the nature of reality.
See lessScience and philosophy are interdependent. For example, in science, hypotheses are formed through complete reasoning to explain a physical phenomenon. They complement each other. What is science? What is the work of science? What is the methodology of science? What is the object? What is the nature of matter? Why is scientific truth not absolute? Philosophy answers the questions etc. Philosophy defines the boundaries of what is science and what is not. More specifically, the philosophy of science.
Is it possible to get HIV if you kiss your lips?
Kissing alone won't do anything but the risk lies in any micro tears or wounds in the mouth that we might be unaware of. This is actually why kissing a stranger immediately after brushing your teeth is not recommended because it can cause micro tears and openings in your mouth and gums that pathogenRead more
Kissing alone won’t do anything but the risk lies in any micro tears or wounds in the mouth that we might be unaware of. This is actually why kissing a stranger immediately after brushing your teeth is not recommended because it can cause micro tears and openings in your mouth and gums that pathogens can enter through and if the person happens to carry HIV or something else then you could also be affected by it.
See lessEveryone has some kind of talent. So my question is, why not everyone is talented?
While many people possess unique abilities or talents, not everyone may recognize or develop those talents to the same extent. Various factors contribute to differences in talents among individuals, including genetic predispositions, environmental influences, access to resources, and personal intereRead more
While many people possess unique abilities or talents, not everyone may recognize or develop those talents to the same extent. Various factors contribute to differences in talents among individuals, including genetic predispositions, environmental influences, access to resources, and personal interests. Additionally, the definition of talent can be subjective, and individuals may have diverse strengths that are not always easily recognized or valued in a particular context.
Everyone has talent! The difference is, some can find their talent, some can’t. Many people do not or cannot develop their talent even after discovering it due to environment, circumstances, their own laziness or reluctance. Due to which the so-called genius does not even get the title. That’s it.
See lessWhat is the source of our morality?
Social Norms, Religion, Culture, Laws and Orders combine all these morals. "Scientific thought consciousness" - not related to morality. Morality is another thing. Many factors are involved in this. Those who say that morality is not formed by religion, culture, history, society, they actually do noRead more
Social Norms, Religion, Culture, Laws and Orders combine all these morals.
“Scientific thought consciousness” – not related to morality. Morality is another thing. Many factors are involved in this.
Those who say that morality is not formed by religion, culture, history, society, they actually do not know the meaning of morality.
See lessPeople just before death can understand that he is dying?
near death experience How does death feel? What are the experiences of those who have come back from near death? There have been many studies on Near Death Experience or NDE. Link (source) has a whole article on how we know NDEs are real. First let's talk about those people who have been brought bacRead more
near death experience
How does death feel? What are the experiences of those who have come back from near death? There have been many studies on Near Death Experience or NDE. Link (source) has a whole article on how we know NDEs are real.
First let’s talk about those people who have been brought back to consciousness by resuscitation. Many of them can describe their resuscitation process very accurately. But those who haven’t had an NDE give more speculative answers.
The most common feeling experienced by NDEers is the out-of-body experience. They describe that time as if they were looking at their bodies from a different angle. Others say they see colors or hear sounds that they cannot match with ordinary colors and sounds. The blind also described as if they “saw” them. Many people see their whole lives floating in front of their eyes and many people meet their dead relatives. It has also been observed in children. An important reason for studying children is that children are not influenced by race, religion etc. Hence their description is unbiased. However, NDEs have also been found to be similar in children. Even though the race and religion are different, the experiences of common NDEers are almost the same.
What is the reason for this? Do you need a reason? Let’s try to give a psychological explanation first. In this case, three model interpretations are available.
Depersonalization Model
Expectancy Model
Dissociation Model
I exclude the first two models in my article because they have considerable limitations. What is said about the latter is that it is our emotional defense mechanism. Our brain imagines these things to save our mind or mental part from a mental pressure or stress. You can call it a kind of coping mechanism.
Now let’s talk about the physiological explanation. There are many hypotheses, I don’t think it is necessary to state them. But whatever the reason, some damage to the bilateral occipital cortex of our brain, or drug effect or lack of oxygen or any other reason, they hallucinate a lot. If there is more damage to the right side, there is a type one NDE in which the person has out-of-body experiences, being able to fly or see bright lights, etc.
If the left side is more affected, type 2 NDE occurs where the person sees different sounds, music, voices, dead relatives etc.
The thing seems less science than nonsense? The work of science is to explain the nonsense, so I could not leave this topic. But it ends here.
Written by: Monif Shah Chowdhury
See lessWhat is lucid dreaming?
Lucid dreaming is a state where an individual becomes aware that they are dreaming while still in the dream. This awareness allows the dreamer to exert some degree of control over their dream environment, characters, or narrative. Lucid dreaming often involves a heightened sense of self-awareness wiRead more
Lucid dreaming is a state where an individual becomes aware that they are dreaming while still in the dream. This awareness allows the dreamer to exert some degree of control over their dream environment, characters, or narrative. Lucid dreaming often involves a heightened sense of self-awareness within the dream world, and some people practice techniques to induce and enhance lucid dreaming experiences.
See lessA familiar person whom I have known since childhood. But suddenly, after looking at him for a long time, his face looks different. This has happened to me many times, what is the reason?
Changes in perception of familiar faces might be linked to various factors, such as stress, fatigue, or even subtle shifts in your mental state. It's not uncommon for our perception to fluctuate based on our emotional and psychological well-being. If this continues to be a concern, consider discussiRead more
Changes in perception of familiar faces might be linked to various factors, such as stress, fatigue, or even subtle shifts in your mental state. It’s not uncommon for our perception to fluctuate based on our emotional and psychological well-being. If this continues to be a concern, consider discussing it further with a mental health professional to explore potential underlying factors.
See lessWhat makes the Rooppur Nuclear Power Plant unique?
The plant is being constructed on the banks of the Padma River, 160 km from Dhaka, the capital of Bangladesh. The nuclear power plant will consist of two Generation III+ VVER-1200 reactors, considered among the most modern and safest in the world. In 2023, the first batch of nuclear fuel was deliverRead more
The plant is being constructed on the banks of the Padma River, 160 km from Dhaka, the capital of Bangladesh. The nuclear power plant will consist of two Generation III+ VVER-1200 reactors, considered among the most modern and safest in the world. In 2023, the first batch of nuclear fuel was delivered to the plant from Russia.
A dedicated cargo port was built on the Padma River specifically for the plant’s construction. Construction materials and equipment from manufacturing plants are transported to the ports of St. Petersburg and Novorossiysk, then shipped to the Mongla seaport in Bangladesh. From there, they are loaded onto river vessels, which travel upstream along the Padma directly to the construction site.
Approximately 4,500 people are involved in the construction of the Rooppur Nuclear Power Plant, with one-third being Russians and the rest comprising Bangladeshis and representatives from other countries, including France, Germany, and India. At the peak of construction, the workforce on the site is expected to reach 12,000 people.
See lessWhat is Zeeman and Stark effect?
Zeeman effect In 1896 A.D. scientist Zeeman observed that, due to the effect of externally applied magnetic field each atomic spectrum breaks into many smaller spectra. The more the magnetic field is increased, the more the spectrum is divided. This is called Zeeman effect according to the name of tRead more
Zeeman effect
In 1896 A.D. scientist Zeeman observed that, due to the effect of externally applied magnetic field each atomic spectrum breaks into many smaller spectra. The more the magnetic field is increased, the more the spectrum is divided. This is called Zeeman effect according to the name of the scientist.
Stark effect
See lessIn 1913 A.D. scientist Stark observed that, externally applied electric field has effect on the atomic spectrum. The atomic spectrum divides into many pieces due to the electric field and complex spectrum is observed. This is called the Stark effect according to the name of scientist.
What is solubility?
In a saturated solution, the concentration of the solute is called the solubility of that solute
In a saturated solution, the concentration of the solute is called the solubility of that solute
See lessWhat ia solute and solvent?
Solute and solvent: One of the two minimum substances required to form a solution is called solute and the other is called solvent. Generally, in solution-(1) the amount of solvent is more than that of solute (2) if the physical state of the two substances is different, the state of solute changes bRead more
Solute and solvent:
One of the two minimum substances required to form a solution is called solute and the other is called solvent. Generally, in solution-(1) the amount of solvent is more than that of solute (2) if the physical state of the two substances is different, the state of solute changes but that of solvent does not change. So, if the amount of both the substances is same, the substance whose physical state is like that of solution: is considered as solvent.
See lessHow to detect fake currency notes by UV ray?
Wavelength of UV ray is from A = 10nm to 380 nm. But UV ray with wavelength is used as optical sensor in true false currency in note detection machine. Special chemical substance named optical sensor phosphor is used as security device in currency note. Electron of phosphor molecule being excited byRead more
Wavelength of UV ray is from A = 10nm to 380 nm. But UV ray with wavelength is used as optical sensor in true false currency in note detection machine. Special chemical substance named optical sensor phosphor is used as security device in currency note. Electron of phosphor molecule being excited by low wavelength or high frequency UV ray is transferred to higher energy level. At next moment the excited electron of phosphor molecule returns back to stable state from excited state and the absorbed energy is radiated as visible light of definite frequency. As the radiation is with color so it is called fluorescence. Based on this principle, UV ray is used to detect fake note/passport.
See lessWhat ia MRI test in diagnosis of disease?
The mechanical process where pictures of internal organ of human body is created for diagnosis of diseases by using magnetic field and radio wave is called MRI test.
The mechanical process where pictures of internal organ of human body is created for diagnosis of diseases by using magnetic field and radio wave is called MRI test.
See lessWhat ia Aufbau principle of election configuration?
Aufbau principle "The electrons in atom will at first fill up the orbitals of lower energy and gradually fill orbitals of higher energy." The energy of an orbital is calculated from principal quantum number 'n' and subsidiary quantum number ''. The orbital for which one the value of (n+l) is less, iRead more
Aufbau principle
“The electrons in atom will at first fill up the orbitals of lower energy and gradually fill orbitals of higher energy.”
The energy of an orbital is calculated from principal quantum number ‘n’ and subsidiary quantum number ”. The orbital for which one the value of (n+l) is less, is the orbital of lower energy and electron will enter into that first.
See lessWhat is Madelung’s rule of electron configuration?
Madelung's Rule If the value of (n+1) is equal then electron will enter the orbital with lower value of n fire Such as: In 3d orbital, n+l=3+2=5 And in 4p. n+l=4+1=5 As the value of n is lower in 3d, electron will enter 3d first.
Madelung’s Rule
If the value of (n+1) is equal then electron will enter the orbital with lower value of n fire
Such as: In 3d orbital, n+l=3+2=5 And in 4p. n+l=4+1=5
See lessAs the value of n is lower in 3d, electron will enter 3d first.
What is Hund’s rule of electron configuration?
Hund's rule: "The electrons will distribute themselves in different degenerate orbitals in such a way that maximum number of electrons remain in unpaired state. The spin of the unpaired electrons will be in the same direction." Hund's rule tells more that, any half-filled or completely filled orbitaRead more
Hund’s rule:
“The electrons will distribute themselves in different degenerate orbitals in such a way that maximum number of electrons remain in unpaired state. The spin of the unpaired electrons will be in the same direction.” Hund’s rule tells more that, any half-filled or completely filled orbitals, are more stable than incomplete electronic configuration.
See lessWhat is Pauli’s exclusion principle of electron configuration?
Pauli's exclusion principle The four quantum numbers of two electrons in same atom can never be same. If 3 quantum numbers of two electrons are same then the fourth quantum number must be different. That means for 2 electrons of same atom the size (n), shape (1) and angular position (m) of orbital cRead more
Pauli’s exclusion principle
The four quantum numbers of two electrons in same atom can never be same. If 3 quantum numbers of two electrons are same then the fourth quantum number must be different.
That means for 2 electrons of same atom the size (n), shape (1) and angular position (m) of orbital can be same if the directions of their rotation in their own axes are opposite to each other. So the main idea of Pauli’s exclusion principle is “There may be highest two electrons in an atomic orbital if their rotation or spins are in opposite directions.”
See less