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Physics

Physics regards the physical aspects of the natural world. It includes topics that deal with forces on different bodies within the universe and phenomena that explain how the universe works.

500 Questions

Why you see your left hand as right hand and right hand as left in the plane mirror?

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Asked by Wiki User

When you look at your reflection in a mirror, it appears as if your left side is on the right and your right side is on the left because the reflection is a reversed image of reality. This reversal occurs because light rays bounce off the mirror's surface and swap sides in the process. Your brain then interprets this reversed image as you, which is why it seems like your left hand is your right hand and vice versa.

How could there be nothing if theres anything which is something so how cold there be nothing?

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Asked by Wiki User

Nothingness can be seen as the absence of any specific thing or state. It is the concept of non-existence or void, which is necessary for the existence of something. In this sense, nothing is the absence of anything tangible or perceivable.

Where does the optic nerve enter the eye?

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Asked by Wiki User

The optic nerve enters the eye at the back of the eyeball through an opening called the optic disc. This area is also known as the blind spot because it lacks light-sensitive cells (rods and cones) that are present in other parts of the retina.

What part of the brain does learning intelligence and judgment occur?

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Asked by Wiki User

Learning, intelligence, and judgment occur in different regions of the brain. Learning involves multiple areas including the hippocampus and prefrontal cortex, while intelligence is associated with overall brain function and connectivity. Judgment is linked to the frontal lobe, specifically the prefrontal cortex, which plays a crucial role in decision-making and moral reasoning.

Why can't you imagine a completely new color?

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Asked by Wiki User

The human eye can only perceive a limited range of colors within the visible light spectrum. Imagining a completely new color outside of this range is impossible because our brains are limited to interpreting the colors we can see based on the wavelengths of light.

Why are left and right reversed in a mirror but not up and down?

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Asked by Wiki User

Our bodies are fairly symmetrical about a vertical plane, i.e. the right side is an opposite image of the left. (If we fold ourselves along a vertical line from head to toes, then each bodily side accommodates the other.) This does not apply to the horizontal plane, where the head stands in opposition to our feet.

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Another way to imagine this is to see yourself in front of and facing a mirror, but lying on your left side. You can see that your left [bottom] and right [top] sides still seem "reversed" by the mirror. You can also see that your head and feet are not reversed. A mirror image is a little like walking into a wall of soft plaster or clay, leaving a 'negative' image of yourself.

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Why%20do%20mirrors%20reverse%20only%20left%20and%20right%20but%20not%20up%20and%20down%20too.

Comment: Here is the answer (without going into too many details).

This does answer the question.

A plane mirror reverses the object ONLY in the direction perpendicular to the mirror surface. That's ALL it does.

However people often perceive this as a left right reversal with front back unchanged. That's the "psychology of perception" not physics.

Why do weekends go by faster than weekdays?

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Asked by Wiki User

Weekends may feel like they pass quickly because they are typically associated with relaxation and leisure activities, which can make time feel like it is moving faster. Additionally, the anticipation of the weekend can make it feel shorter in comparison to the weekdays. The structure and routine of the workweek can also contribute to a perception of slower time passing.

What is meaning of kamini?

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Asked by Wiki User

"Kamini" is a term used to refer to a woman in Hindi and several other Indian languages. It can have various connotations depending on the context in which it is used, ranging from endearing or playful to derogatory or rude.

What are the five waves of development in the field of bioethics?

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Asked by Wiki User

The five waves of development in the field of bioethics include the bioethics movement in the 1960s, the focus on ethical issues in clinical practice in the 1970s, the emphasis on research ethics and informed consent in the 1980s, the integration of medical ethics into public policy in the 1990s, and the globalization and cultural diversity of bioethics in the 2000s.

What is a pain threshold?

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Asked by Wiki User

A pain threshold is the point at which a person starts to feel discomfort or pain from a stimulus. It is the level of intensity at which a person perceives a sensation as painful. Different individuals have different pain thresholds.

Why do people drag their feet?

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Asked by Wiki User

People may drag their feet due to fatigue, muscle weakness, or poor posture. It can also be a sign of an underlying medical condition such as nerve damage or structural issues in the feet or legs. Consulting a healthcare provider is advisable if persistent dragging of the feet is noticed.

What is an example of a learned trait?

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Asked by Wiki User

An example of a learned trait is language proficiency. Individuals acquire language skills through exposure, practice, and formal education, rather than being born with them. This trait can vary greatly among individuals based on their experiences and effort put into learning a particular language.

Why do people lie to split people up?

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Asked by Wiki User

People may lie to split people up for various reasons, such as jealousy, manipulation, or the desire to control relationships. Lying can cause misunderstandings, erode trust, and create conflict between individuals, ultimately leading to the breakdown of relationships.

What are perky breasts?

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Asked by Wiki User

"Perky breasts" typically refer to breasts that are firm, uplifted, and have a youthful appearance without sagging. This can be due to factors such as genetics, age, weight, and physical fitness.

What is the most extensive regions of the brain which enable learning and memory?

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Asked by Wiki User

The hippocampus and the cerebral cortex are the most extensive regions of the brain that enable learning and memory. The hippocampus is crucial for forming new memories, while the cerebral cortex is involved in processing and storing long-term memories. Together, these regions play a vital role in cognitive functions such as learning and memory.

Where does learning occur in the brain?

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Asked by Wiki User

Learning occurs in various parts of the brain, but primarily in the hippocampus and the cerebral cortex. The hippocampus is involved in forming new memories and storing information, while the cerebral cortex is responsible for higher cognitive functions like language and reasoning, which are crucial for learning and processing new information. Communication between these two regions, along with other brain areas, is essential for learning to take place.

Movies that are related to groupthink theory?

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Asked by Wiki User

Movies that explore groupthink theory include "12 Angry Men" (1957), "Apollo 13" (1995), "The Bay of Silence" (2020), and "Margin Call" (2011). These films often showcase how group dynamics, conformity, and pressure can lead to flawed decision-making processes within a group.

What is the difference threshold?

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Asked by Wiki User

The difference threshold, also known as the just noticeable difference (JND), is the minimum amount by which two stimuli must differ for a person to perceive them as distinct. It is a key concept in psychophysics that helps understand how sensitive our senses are to changes in stimuli. The difference threshold varies depending on the type of stimulus and individual differences in perception.

Is computer science a hard science?

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Asked by Wiki User

Computer science is typically categorized as a "hard science" due to its focus on the study of computational systems and algorithms, which often involve precise logical reasoning and mathematical principles. However, the exact classification can vary based on context and perspective.

What does chart mean in a scientific way?

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Asked by Wiki User

In a scientific context, a chart typically refers to a visual representation of data that has been organized in a graphical format, such as a line graph, bar graph, or pie chart. Charts are used to illustrate relationships, trends, or patterns within the data being presented, making complex information easier to understand and interpret.

What part of the brain is responsible for learning?

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Asked by Wiki User

The hippocampus and prefrontal cortex are key brain regions for learning and memory. The hippocampus helps with forming new memories, while the prefrontal cortex plays a role in decision-making, attention, and problem-solving, all of which are important for learning.

Why is compassion important?

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Asked by Wiki User

The compass is important because with out it we would get lost. It helps ships navigate their way to land, and people that get lost in the woods back to their camp. To sum it up a compass helps you find you way, get your bearings, and navigate.

What did Aristotle say about falling objects?

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Asked by Wiki User

Aristotle believed that heavier objects fell faster than lighter objects. He proposed that the speed at which an object falls is proportional to its weight. However, his theory was later proven incorrect by Galileo's experiments.

Is time endless?

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Asked by Wiki User

Time itself is a concept for measuring the duration of events, so it does not have a physical existence to be endless or finite. Some theories suggest that time may be infinite or cyclical, while others propose that it is a finite entity with a beginning and end. The understanding of time is still a subject of ongoing debate and research in physics and philosophy.

What is the relation between mind and matter?

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Asked by Smritishg

The relationship between mind and matter is a complex philosophical topic. Dualism posits that mind and matter are two separate substances, while monism holds that they are ultimately the same substance. Some theories, like idealism, suggest that the mind is primary and creates the illusion of the material world. Ultimately, the nature of this relationship is still debated and remains a key question in philosophy.