What is Nature: Definition and 729 Discussions

Nature, in the broadest sense, is the natural, physical, material world or universe. "Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science. Although humans are part of nature, human activity is often understood as a separate category from other natural phenomena.The word nature is borrowed from the Old French nature and is derived from the Latin word natura, or "essential qualities, innate disposition", and in ancient times, literally meant "birth". In ancient philosophy, natura is mostly used as the Latin translation of the Greek word physis (φύσις), which originally related to the intrinsic characteristics that plants, animals, and other features of the world develop of their own accord.
The concept of nature as a whole, the physical universe, is one of several expansions of the original notion; it began with certain core applications of the word φύσις by pre-Socratic philosophers (though this word had a dynamic dimension then, especially for Heraclitus), and has steadily gained currency ever since. During the advent of modern scientific method in the last several centuries, nature became the passive reality, organized and moved by divine laws. With the Industrial revolution, nature increasingly became seen as the part of reality deprived from intentional intervention: it was hence considered as sacred by some traditions (Rousseau, American transcendentalism) or a mere decorum for divine providence or human history (Hegel, Marx). However, a vitalist vision of nature, closer to the presocratic one, got reborn at the same time, especially after Charles Darwin.Within the various uses of the word today, "nature" often refers to geology and wildlife. Nature can refer to the general realm of living plants and animals, and in some cases to the processes associated with inanimate objects—the way that particular types of things exist and change of their own accord, such as the weather and geology of the Earth. It is often taken to mean the "natural environment" or wilderness—wild animals, rocks, forest, and in general those things that have not been substantially altered by human intervention, or which persist despite human intervention. For example, manufactured objects and human interaction generally are not considered part of nature, unless qualified as, for example, "human nature" or "the whole of nature". This more traditional concept of natural things that can still be found today implies a distinction between the natural and the artificial, with the artificial being understood as that which has been brought into being by a human consciousness or a human mind. Depending on the particular context, the term "natural" might also be distinguished from the unnatural or the supernatural.

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  1. S

    Exploring the 4 Fundamental Forces of Nature

    gravity: Fg = GM1M2/r^2 electro-magnetic: weak force: strong force:
  2. V

    Laws of nature, and creatures like us.

    The following is something i read, and attempt to reproduce. I made no claim for originality. For anyone that wants the title of the book, and page number. I will find it, and post it. ( I remember the author is an adjunt professor at rockefeller university) The universe U is a computer...
  3. M

    Only one isotope of element X occurs in nature

    only one isotope of element X occurs in nature. One atom of this isotope has a mass of 9.123x10-23g. What is the molar of the element X?
  4. D

    Exploring the Mysteries of Gravity: What is Its True Nature?

    I understand the forces of gravity, how to model it ect. I even vaguely understand relativistic gravity, but these are just descriptions of how gravity works. What is gravity? Why does mass attract other mass (or warp space time)? Is there an answer for this?
  5. R

    Assumption of spherical nature of the universe

    I guess the question is: Is the often used spherical symmetry of the universe just an assumption or is there evidence to support this? I don't mean, nature of 'observing' so much has the properties or symmetry? Trying for an example: many particles have spin -- does the universe have...
  6. S

    Nature of Universe: Latest Thinking Explored

    Hi, There is definitely overload if you try to look this up online, and you have to pay attention to the dates the sites were made, so I thought I would ask here: What is the latest thinking as to the nature of the universe. Infinite? Finite? Bounded? Unbounded? I am still a...
  7. T

    The Mysterious Nature of Neutrons: Stability & Binding

    Neutrons bind Protons in nuclei, and/or the other way around, but why don't Neutrons bind Neutrons, with clumps of neutrons whizzing about? And, I'm guessing this is related: Why is a Neutron unstable outside its nucleus with about a 10.3 minute half-life?
  8. S

    Exploring the Nature of Flame: Matter or Energy?

    What is flame? What is fire? A form of energy? Or maybe matter?... Anyone here knows the substance of a flame? If it has. I don't know but I am sure I would like to know!
  9. S

    Explaining Friction: Reconciling Quantum Mechanics & Contact Force

    Could someone please explain how science reconciles these statements (both of which I have found in textbooks): *Friction is known as a "contact force" that relies on contact between surfaces for frictional forces to act. *In quantum mechanics, surfaces cannot be in "contact" with one...
  10. W

    Differentiability in nature (how many levels typically occur? )

    Here's a question I've thought about on several occasions: How many levels of derivatives (rates of change) typically occur for objects in nature? For instance, a car has a position, velocity (1st derivative), and acceleration (2nd derivative), but it can also be said to have a rate of...
  11. A

    Nature of quantum theory of gravity.

    Can anybody explain why the theory describing quantum gravity is expected to be discrete (rather than a continuum theory), nonlocal (rather than a local theory) and Lorentz violating (rather that a Lorentz invariant theory)?
  12. M

    Gravity & State of Matter: Does Force Vary?

    does the effect of gravitational force vary with state of matter,i.e the force is most felt in gases?right. anything having mass experiences gravity,so 2 gases having masses should experience gravity between themselves.
  13. E

    Thought I had on the nature of randomness.

    I have been thinking about the nature of chaos recently and thought of a different way of looking at it. What if "chaos" is really an example of information loss? My rational goes something like this: *classical physics as well as "common sense" suggests that the universe is run by a set of...
  14. J

    Is Pu Impossible to Mine in Nature Due to Its Short Half-Life?

    Is it correct that Pu cannot be found in nature? What I mean acctually is that while Uranium can be mined, Pu from what I have searchd on wikipedia cannot be mined. I know that Pu is produced in nuclear reactors(or other facilities) from Uranium.
  15. C

    Intriguing Questions Regarding Nature of Time in Special Relativity

    Hi, I have been thinking about the philosophical implications of time and have in the process been analyzing the consequences of time as conceived of by special relativity. I have a couple of questions though, and I would really appreciate it if someone could offer their knowledge in an...
  16. M

    The Vector nature of Newton's Second Law

    Homework Statement A wagon carries a child. Together mass is 28.5kg. You pull on the handle of the wagon at an angle of 40degrees from the horizontal. The wagon travels over a level horizontal sidewalk. A force of friction of 12.0N acts on the wagon. a) What is the net force acting on the...
  17. T

    The Vector Nature of Newton's Second Law

    Homework Statement A crate of mass 50.0 kg is pulled across a level concrete floor by a force of 300.0 N acting 30.0 degrees above the horizontal. The crate moves at a constant velocity of 0.962 m/s. What is the force of friction acting on the crate? Homework Equations SINE, COSINE...
  18. H

    Symmetric/Antisymmetric states in nature?

    For the composite system of identical particles only symmetric and antisymmetric states in the tensor-product (from the one-particle spaces) space are allowed to represent particles in nature. Why is that? Is it an experimental fact which is used as an input in the theory of many particle QM...
  19. P

    Are Human Nature and Human Instincts Distinct Concepts?

    What is human nature and what is known by human instincts? What's the difference between the two? Is there any distinct line differentiating the two?
  20. N

    Please, will you explain the nature of spectral lines

    Hi, I was wondering what really ARE spectral lines? Are they electromagnetic waves? But still they are affected by magnetic & electric field in the Zeeman and Starks effect respectively, whereas the electromagnetic waves are not. so is there any theory explaining...
  21. Y

    What Is the True Nature of Time?

    Do you think time flows or is static? Is time continuous or quantized? Is the direction of time uniquely defined and irreversible? Is time just a figment of our imagination? FQXI has an essay contest about the nature of time. All these points of view are championed by various authors...
  22. L

    Exploring the Nature of Gravity and Its Interaction with Mass

    I will start by saying I am not a physicist and what I am posting here is pure thought experiment on my part. I was wondering about the nature of gravity, and trying to determine how the force could act to pull two objects together. What physical interaction causes two objects to accelerate...
  23. marcus

    Quantum Nature of the Big bang in Simple Models (Ashtekar@Perimeter)

    This video is worth watching. http://pirsa.org/08120001/ Quantum Nature of the Big bang in Simple Models. Abhay Ashtekar Perimeter video with slides PDF 3 December 2008 "According to general relativity, space-time ends at singularities and classical physics just stops. In particular, the big...
  24. icystrike

    Finding Value of k for Tangent to y=\frac{3x}{\sqrt{1+x}} at x=3

    Homework Statement The equation of a curve is y=\frac{3x}{\sqrt{1+x}}. Given that the equation of the tangent to the curve at the point x=3 us 15x-16y=k , find the value of k. SOLVED Homework Equations The Attempt at a Solution
  25. C

    Ionisation chamber - doubt about current nature and residue

    Homework Statement This is from Advanced Physics by Adams and Allday, section 8, practice exam questions, question 25. An α-source with an activity of 150 kBq is placed in a metal can. A 100 V d.c. source and a 109 Ώ resistor are connected in series to the can and the source. This...
  26. WaveJumper

    The nature of particles in the Standard Model vs String Theory

    Neutrinos are elementary particles that have the ability to pass through any matter. Billions of them pass through our bodies every second. Billions of them pass through the Earth and exit on the other side unaffected. They can pass through stars and travel to the other side of the universe...
  27. D

    Why is the Higgs Field a Scalar Field? Exploring Its Nature

    Why is the Higgs field a scalar field? I understand if it is one, it will have no spin and no angular momentum. But understanding that a particle is a scalar seems to me a leap of faith. What am I not getting?
  28. Artlav

    Twin paradox and the nature of time?

    I'm trying to make sense of the way time dimension is related to the other 3, the example is twin paradox: Observer 1 is moving away at 0.866c from observer 2, who is standing still, then turns around at a defined point and goes back at the same speed, arriving back to observer 2 position...
  29. J

    The Nature of length contraction

    Can someone please clear up the nature of length contraction Does the spatial dimension parallel to the motion of a moving metre stick contract (as seen by a stationary observer). Or Is contraction a purelly matter phenomenon whereby space is constant and the actual material of the...
  30. S

    Questions about the nature of the electromagnetic spectrum

    Hi I had some questions about the nature of the spectrum of electromagnetic radiation, as to whether it is continuous or quantifiable, and whether it is infinite or finite. I haven't been able to find satisfactory answers so far and I'm very interested in the knowledge of this forum. Can the...
  31. E

    The vector nature of forces hw ?

    I have been having trouble with this problem and don't understand why. A shopper pushes a 7.5 kg shopping cart up at a 13 degree incline, find the magnitude of the horizontal force, needed to give the cart an acceleration of 1.41m/s2 The answer is supposed to be 28 N and I don't know how...
  32. F

    Nature of Time (FQXi competition & Rovelli's paper)

    FQXi has an essay contest on the Nature of Time. http://fqxi.org/community/forum/category/10" There is an internal commission but the winner depends also on the public vote. Here is possible to vote: http://fqxi.org/community/vote" (vote your favourite one!) and it's very nice that there is...
  33. A

    Analyzing 2-Lens System: Image Position, Magnification & Nature

    Homework Statement A convex lens (f1=300mm) is placed 200 mm from a concave lens (f2=-50mm). An object is placed 6m away form the convex lens. (the order is as follows: object - 6m - convex lens - 200mm - concave lens). Determine the position, magnification and nature of a final image...
  34. marcus

    Science poetry-or verse that is just informative about nature

    Science poetry--or verse that is just informative about nature In another thread, Mormonator mentioned poetry about particle physics. This reminds me of John Updike's Neutrino poem and Franck Wilczek's Virtual Particles sonnet. And Borges sonnet about 4D spacetime. Maybe we should try...
  35. G

    Are spirits affected by laws of physics or forces of nature?

    If anyone of you know a thing or two about spirits if they are affected by forces of nature like gravity, wind, matter, etc. Not that you have witnessed or experienced beforehand but maybe you possesses 2nd hand knowledge regarding this matter. Also not that they are real, I just want info...
  36. T

    What Indicates the Quantized Nature of Electrons in Atoms?

    Homework Statement Phenomena/Features that imply the quantized nature of the electrons in an atom Homework Equations The Attempt at a Solution Electrons can take only certain allowed energy values. when an electron moves from a high energy level to a lower level, a photon is...
  37. S

    Nature of Sub-Atomic Particles

    To grasp basic physics I need an idea of the nature of the particles which comprise its object. When I search beyond "a big positive thing and a little negative thing", I find lots of attempts to view and destroy but no simple explanation of what is being watched or pulverized. I read of...
  38. A

    Don't mechanical advantage disagree with the law of nature ?

    Don't "mechanical advantage" disagree with the law of nature ? hello I just can't swallow the idea of mechanical advantage. * if you have a 10 KG mass , you need , say , 100 N to left it up * if your friend helps you , each one of you will exert only 50 N * but if you are alone , and...
  39. D

    Why is the standard form of a linear equation significant in graphing?

    Why is the standard form of a linear equation ax + by = c? What is the significance of this particular way of writing the equation that makes it "standard"? When we graph a line, we always transform the equation into something else, such as the point-slope form, y = mx + b. In other words...
  40. L

    Experiments that revealed light's nature.

    Please, I need a list of definitive experiments that revealed light's nature.
  41. S

    A question on wave nature of EM radiation

    There is a EM radiation of frequency suppose x Hz.Let it has to travel a distance of y m.Now what's the time required for the radiation to travel the distance?The question seems to be very easy, but my confusion is in how can the frequency,distance,speed and time can be related? Can someone give...
  42. E

    The Mysterious Nature of Prime Numbers in Science

    Can anyone tell me, what is so important about prime numbers in science?
  43. M

    The casual nature of QM relatons

    One commonly hears that Quantum Mechanics refutes or disproves the principle of causality. and yet if this were the case, qm could not be used to build highly precise machines such as lasers. the truth is that qm makes of use of a modified causality. the normal causal relation is that...
  44. W

    Exploring the Nature of Fields: What are they?

    Hi, I was just wondering about the nature of fields. What are they? Since fields carry energy, and energy is mass, does that mean that fields are equivalent to mass?? I think this is probably incorrect, but I just have no clue why.
  45. Z

    Exploring the Nature of Time: Do We Really Understand it?

    I know I am probably missing the point, but something is not clicking for me in understanding time as a dimension. Isn't time just an arbitrary measurement of distance? It's always just us 'counting hippopotamuses' while watching something moving from point A to point B (we don't have to...
  46. N

    How does atmospheric scattering explain the faintness of starlight?

    Homework Statement "Explain the statement that one's eyes could not detect the faint star-light if light were not particle like" Homework Equations The Attempt at a Solution What comes to my mind is that when light from outside enters the atmosphere,it gets refracted...referred to...
  47. D

    Nature v453 n7194 p562 22 May 2008 SURPRISE

    Jeff Hecht discusses “A question of breeding” in ‘The Neanderthal correlation’. Last 3 paragraphs [of FUTURES], if true [?]: “That human mathematical intelligence came from Neanderthals? That’s what the data say. The Cro-Magnons had the social skills. But that isn’t all.” I stared at her. I...
  48. P

    X: Biomimetics: Exploring Nature's Designs

    ‘The genius of man may make various inventions, encompassing with various instruments one and the same end; but it will never discover a more beautiful, a more economical, or a more direct one than nature’s, since in her inventions nothing is wanting and nothing is superfluous’ - Leonardo da...
  49. B

    Exploring the Amphipathic Nature of the Plasma Membrane

    if the Plasma membrane is amphipathic (hydrophobic and hydrophilic), why does it only allow hydrophobic stuff to pass thru?
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