Nature Definition and 700 Threads

Like quarks, space charges are also fractionally charged particles. But unlike quarks, the absolute magnitude of space charges is always 1/6 while that of quarks are 2/3 and 1/3. There are also two polarities (+/-) of space charges. The grouping of space charges forms the elementary particles...

So we had this debate in my Social Studies class today about nature vs. Nurture. The philosopher Jean Jaques Rosseua said the nature of humans is good, the philosopher Thomas Hobbes said that it is evil. Does it have to be one or the other? It depends on who you are and who you choose to be? It...

If one adds a scalar to the Hilbert action without considering any matter fields, S = \int {d^nx {\sqrt -g} (R - 2 \Lambda) one gets the Einstein equations as: R_{\mu \nu} - \frac{1}{2} R g_{\mu \nu} + \Lambda g_{\mu \nu} = 0 Now, one can take T_{\mu \nu} = -...

Magnetism is still a big mystery. This is due to the fact that the source of it cannot be found, the magnetic monopoles. It can be theorized that magnetism is the key to understanding the concept of perpetual motion. It seems that the magnetic field is always in motion. This motion is...

We all know there are a lot of unexplained phenomenon out there - do you know some? I don't mean historical mysteries, UFO's, ESP, Miraculous Healing, etc ... I do mean things that can seen again and again e.g. I was told by a teacher that photosynthesis not fully explained yet, the flip of the...

Hello. Is it possible that light speed is the maximum speed because of a property of space time and not that of light? I.e. light can go the maximum speed in the universe as we know it but the maximum speed is not determined by light itself but by the nature of the fabric of space time: light...

Is Maths an underlying principle of nature or did it originate from our brain? I think we would agree that Maths is abstract, but would it be there if we wouldn't be here? Maybe Maths is an underlying principle of nature that our brain is capable of taking notice of in an abstract way. ...

Can you do anything not selfish? Are there no real choices? My friend came up with this predicament. Everything we do is a selfish act. Every decision we make is one we want to make for ourselves. For example, I want to help out an old lady cross the street because I either want to do it to...

HUGE Bacteria! I don't know if it has been brought up before, but while I was just making random searches on the net (when I should have been doing homework) I found this I was amazed. I kinda want some in a fish tank or something, kind of like having sea sea monkeys in you fish tank.

Man, Nature and "Convenience" Ignore the typos in this rant as it was written in a mad dash of typing, and I haven't gotten around to proof-reading it yet. what makes man truly human There is no distinction in classification of human vs animal. The only thing that makes human human is...

What are rights and why are they deserved? By what criteria do we decide that one deserves rights?

Hey Everyone, Please help settle a bet between a co-worker and myself. Neither of us are trained physics (I have a philosophy degree and he has a computer science degree), but we are both "amateurs" interested in physics. OK, here's the issue: My friend argues that time, explained as the...

At the quantum scale physics becomes hugely unpredictable and particles appear to defy the laws of physics at every turn, only obeying classical physics on 'average'. Beta rays appear to have wave like properties, they consist of electrons, which are known to have a mass and have particle...

I like to study and read about physics in my spare time. One thing that has always puzled me is how the scientists, particulary physicists and mathematicians can come up with a mathmatical equation for an event in nature.One thing I've tried to study to get a better understanding is the Lorenzt...

This paper is dated to the 23rd of December, and seems to be a nice idea... http://arxiv.org/abs/hep-th/0312278 Sort of deals with the ultimate question: where did the physical laws come from? No religious discussions here guys, let's rely on a firm fact basis :) One question...

This paper is dated to the 23rd of December, and seems to be a nice idea... http://arxiv.org/abs/hep-th/0312278 Sort of deals with the ultimate question: where did the physical laws come from? No religious discussions here guys, let's rely on a firm fact basis :) One question...

Iam having some trouble understanding the nature of free vortexs, with the internet and library being extremely scarce in answers. My understanding is that the angular momentum of the water causes a centripetal force to push the water outwards leaving a cavity in the middle. I understand that at...

My cat is more dangerous that my four dogs combined! Gee, she is normally very nice (except sometimes when she gets mad when you don't allow her to chew your fingers), but sometimes she can get really vicious. I guess it might just be the nature of the breed, a North-American ranch cat, just...

Has anyone read this? Either the physicists interviewed in this article were ridiculously stupid or they're so smart that they go right over my head. People at NASA sent out some sort of probe which was just intended to go out into the uiniverse with no particular destination. It constantly...

This question isn't as obvious as it first seems. Think about it a bit: Why do we have 2 sexes?

A simple question,but to which I can't find a ready answer. What is the nature of this rotational force that affects all celestial bodies? What was the initial impetus? How does physics explain it? Thank you, ion

[SOLVED] the nature of electric magnetic radiation,it's rest mass and potential to sl Some people look at light as photons I look at light simular to radio waves except at a higher frequency,so if you analyse light from the point of from radio waves you get a much better picture as to...

A new claim has appeared in physics. It is claimed that there is a largest possible force, namely c^4/4G or 3 x 10^43 Newton. (The claim is made in the paper http://xxx.lanl.gov/abs/physics/0309118 ) All my friends and acquantances have first said "wrong!" but then failed to produce a...

In the previous theme I spoke, that tangential energy of the dipole of speed is proportional to its square. Accordingly, tangential energy of radial resonance oscillations of the energy ring is proportional to the total square of all dipoles of speed in the ring. See file "dipole of speed.pdf"...

Alrighty, I have a problems with trying to convert graphs into.. well other graphs. Right now I'm sort of stuck on Velocity, Accerleration and Force. For instance covering this statement into a Graph. the object moves away from the origin with a constant velocity. Then I got to graph it as the...

http://www.nature.com/nsu/030929/030929-3.html

malai5 suggested to write down "what do i need to know at this time?" and see what floats in. i saw no harm in this so i did. and i began auto-writing. I'm not making a definite claim about the source of this writing except that it is probably something very personal to me. perhaps it is my...

could someone just explain to me the ideas about human nature? is it a real science thing or just a philosophy? and what characteristics are considered human nature?

You might like to check out this site. It has some interesting ideas. http://www.geocities.com/natureoflight

Hi! In terms of magnesium fluoride what is the minimum thickness of mag fl coating that must be applied to a glass lens to make it non-reflecting for that wavelength? (the index of refraction of magnesium fluoride is intermediate to that of air and glass) 1/2 wavelength out of phase to...

[SOLVED] On The Nature Of Light The decision to define a photon as a sub-atomic particle is a difficult one to understand. According to the existing theory there is a different photon for every frequency in the whole of the electro-magnetic spectrum and for every possible combination of...

A colleague has posted an essay on antimatter at [PLAIN]www.rfprobes.com.au/gimliphysics/symm.htm[/URL] . It is suggested that the missing antimatter of the universe is not missing at all. In other words there is no baryonic asymmetry and CP violation has been misinterpreted. I think the ideas...

What causes the high up cirrus clouds to be ripple shaped and thin, while the lower stratus or cumulo nimbus clouds to be puffy and opaque? Presumably, it must have something to do with atmospheric density and temperature...although how exactly seems uncertain. Also, what causes clouds to...

http://www.nature.com/nsu/030609/030609-16.html

http://www.nature.com/nsu/030609/030609-7.html

What is "spirit" anyway? The animating force within (all?) living things? The central nature of a person? What are its properties? Its proclivities? Its "powers"? Its "purpose"? Is "spirit" real or imagined? Essential or extraneous? "Perfect" or "evolving"? Eternal or finite...

This was discussed quite a bit, on the old PFs, and I'd like to revive the topic. Is it "evil" to sin against a person? If so, then all "heroes" are really "evil", as they must sin against their enemies, in order to achieve their [noble] purpose. However, this raises the question of...

If sunlight of color B is scattered through an angle 16 times greater than sunlight of color A, then the wavelength of color B is? Dx :wink:

Hello, A monochromatic light is incident on a Youngs double spilt setup that has a slit separation of 30um. the resultant bridge fringe separation if 2.15cm on a 1.2 m from the double slit. what is the separation between the 3rd order bright fringe and the 0th order bright fringe? I know...

Hello, In a double slit experiment the slit separation is 2.0mm and two wavelengths 750nm and 900nm illuminate the slits. A screen placed 2m from the slits. at what distance from the central maximum on the screen will a bright fringe from one pattern first conincide with a bright fringe from...

Can we consruct a centrifuge to accelerate ions and coerce them to fuse into heavier elements? It would have to be a sweeping electric field, because any moving parts would disintegrate from the great velocity they'd invariably have to have. Think fusion could be achieved this way?

Most of us here are familiar with the Lifegazer's Mind idea, so I won't go into any real explanation - unless it becomes necessary; in which case, I think Lifegazer would do a better job than I would anyway. Lifegazer has said that all minds are products of the Mind (or of God; the terms are...

So, telepathy, eh? If people can send their thoughts to each other, I don't think it could be through any sort of electromagnetic phenomena. Since any electric/magnetic fields people's bodies have around them are negligible, if they exist at all.. I say that because if you've grounded...

It seems to me that key feature of human nature is denial. There are some things that many people just refuse to believe despite all the evidence in the world to back it up. This denial appears to be a result of serious perceived incompatibilities between existing beliefs and new...

I posted this at Mentat's "I think, therefore I am" thread: As I see it, 'thinking' is how existence is assertained - along with 'sensation-of-awareness'. Thus thinking is the source of knowing that 'existence is'. Therefore, it can definitely be claimed that 'thought' is evidence of...

Is human malevolence or natural predation more destructive to life?

What it's like to vanish--QM and the nature of consciousness I’ve recently been thinking about the familiar Schrödinger’s Cat thought-experiment. Uncertainty at the quantum level essentially dictates that the rhetorical cat considered in the experiment ‘exists’ in a superposition of states. The...

V. PHILOSOPHY OF NATURE. TIME AND SPACE We now come to philosophy of nature. Here again Herr Dühring has every cause for dissatisfaction with his predecessors. Natural philosophy "sank so low that it became an arid, spurious doggerel founded on ignorance", and "fell to the prostituted...

suppose that antimatter is not real in the real sense nut still is.what if when a nuclear decay or atom smasher happens and a positron is released,since positrons and electrons annihillate each other when they make contact,what if anti matter is actual the absense of energy not real energy in...

Where do you fall on this one? Do you believe we are programed from birth with our entire personality, do you believe that we start clean, and are the product of environment? Or do you believe it is a combination, and if so, what is the balance? 50/50?