Inconsistencies arise when one tries to join the quantum laws with general relativity, a more elaborate description of spacetime which incorporates gravitation. Resolving these inconsistencies has been a major goal of twentieth- and twenty-first-century physics. Many prominent physicists, including Stephen Hawking, have labored in the attempt to discover a "Grand Unification Theory" that combines not only different models of subatomic physics, but also defines the universe's four forces--the strong force, weak force, electromagnetism, and gravity--as being different variations of a single force or phenomenon.
...And gays.thareaper254 wrote:
gay porn is for noobs!
Cake!iNeedUrFace4Soup wrote:
Inconsistencies arise when one tries to join the quantum laws with general relativity, a more elaborate description of spacetime which incorporates gravitation. Resolving these inconsistencies has been a major goal of twentieth- and twenty-first-century physics. Many prominent physicists, including Stephen Hawking, have labored in the attempt to discover a "Grand Unification Theory" that combines not only different models of subatomic physics, but also defines the universe's four forces--the strong force, weak force, electromagnetism, and gravity--as being different variations of a single force or phenomenon.
That was politesniper09735 wrote:
well put butt fuckerMajor.League.Infidel wrote:
1) This is just spam, which is against the rules
2) Quote pyramids stop after you get about 3 or so quotes. So there's no real point to this.
I've actually never done this before.
In before DA lock!
In before DA lock!
Blackbelts are just whitebelts who have never quit.
Melting Pot is a metaphor, it means that in the pot is the country and the ingredients in the pot are the different people with their own culture. In a pot of ingredients the ingredients mix together and make more of a one flavor. Witch means that when people say the US is a melting pot they are saying that all the different people that go in the US become more like everybody else instead of keeping there own cultural.
Some people say the Canada is like mosaic because most people keep there culture and even though they are all different they make up one country. On a mosaic there are a bunch of little different pictures that make up one big one, the people are the little pictures and the picture they make up is their country, Canada.
Some people say the Canada is like mosaic because most people keep there culture and even though they are all different they make up one country. On a mosaic there are a bunch of little different pictures that make up one big one, the people are the little pictures and the picture they make up is their country, Canada.
Where's Tmo when you need him?
Shit that should read
In B 4 DA l0Ck!
(yeah i know i could have edited my original post but i want to increase my non viewable post count and elongate my tiny e-penis)
In B 4 DA l0Ck!
(yeah i know i could have edited my original post but i want to increase my non viewable post count and elongate my tiny e-penis)
Blackbelts are just whitebelts who have never quit.
And now for a tour of Desert Queen Ranch!!!
A wikipedia scholar.Sgt_Sieg wrote:
Cake!iNeedUrFace4Soup wrote:
Inconsistencies arise when one tries to join the quantum laws with general relativity, a more elaborate description of spacetime which incorporates gravitation. Resolving these inconsistencies has been a major goal of twentieth- and twenty-first-century physics. Many prominent physicists, including Stephen Hawking, have labored in the attempt to discover a "Grand Unification Theory" that combines not only different models of subatomic physics, but also defines the universe's four forces--the strong force, weak force, electromagnetism, and gravity--as being different variations of a single force or phenomenon.
Xbone Stormsurgezz
What the hell is going on? Why do I have to post this often before this closes...
*Shoots*m3thod wrote:
Shit that should read
In B 4 DA l0Ck!
(yeah i know i could have edited my original post but i want to increase my non viewable post count and elongate my tiny e-penis)
m3thod wrote:
In B 4 DA l0Ck!
8====== < my pyramid 4tw
I remember once they wanted to ban TMo in that secret Mod section of the forums and then they MADE HIM A MOD!
what's that all about huh?!
Coincidently I saw him on UTAC and told him, did i get Karma? NO!
what's that all about huh?!
Coincidently I saw him on UTAC and told him, did i get Karma? NO!
Blackbelts are just whitebelts who have never quit.
The speed of light in a vacuum is exactly 299,792,458 meters per second (fixed by definition). Although some people speak of the "velocity of light", the word velocity is usually reserved for vector quantities, which have a direction.
ATG is that you rather crazily climbing that mountain?
If if you fell and your little nippers saw you splattered on the ground?!
If if you fell and your little nippers saw you splattered on the ground?!
Blackbelts are just whitebelts who have never quit.
My nipples are hard.m3thod wrote:
ATG is that you rather crazily climbing that mountain?
If if you fell and your little nippers saw you splattered on the ground?!
I only climb without a rope when I ABSOLUTELY CANNOT FALL unless there is a earth quake or something.
Besides, it's only rated 5.4.
Besides, it's only rated 5.4.
I'd be scared shitless if I found myself hanging off an edge of a cliff. Me = Acrophobic.
MorbiD.ShoT wrote:
My nipples are hard.m3thod wrote:
ATG is that you rather crazily climbing that mountain?
If if you fell and your little nippers saw you splattered on the ground?!
Fix'd.
*Insert a picture with train out of track and the text: "Derailed" in it*
Last edited by NooBesT[FiN] (2007-02-25 16:01:46)
inb4close
Special relativity
Main article: Special relativity
Special relativity is a theory of the structure of spacetime. The reason we have three space dimensions and one time dimension, or better, space-time, could lie in the way gravity works. One of the foundations of Poincaré’s Theory is the fact that gravity can affect time. It was introduced in Albert Einstein's 1905 paper "On the Electrodynamics of Moving Bodies". Special relativity is based on two postulates which are contradictory in classical mechanics:
1. That observers, when in uniform motion relative to one another, have no way of determining whether one of them is "stationary" (Galileo's principle of relativity),
2. That the speed of light in a vacuum is the same for all observers, regardless of their motion or of the motion of the source of the light.
The resultant theory has many surprising consequences. Some of these are:
* Time dilation: Moving clocks tick slower than an observer's "stationary" clock.
* Length contraction: Objects are shorter along the direction in which they are moving.
* Relativity of simultaneity: two events that appear simultaneous to an observer A will not be simultaneous to an observer B if B is moving with respect to A.
* E=mc²: energy and mass are equivalent and interchangeable.
The defining feature of special relativity is the replacement of the Galilean transformations of classical mechanics by the Lorentz transformations. (See Maxwell's equations of electromagnetism and introduction to special relativity).
[edit] General relativity
Main article: General relativity
General relativity is a theory of gravitation developed by Einstein in the years 1907 - 1915.
The development of general relativity began with the equivalence principle, under which the states of accelerated motion and being at rest in a gravitational field (for example when standing of the surfae of the Earth) are physically identical. The upshot of this is that free fall is inertial motion: In other words an object in free fall is falling because that is how objects move in the lack of any force being exerted on them, insead of this being due to the force of gravity as is the case in classical mechanics. This is incompatible with classical mechanics and special relativity because in those theories intertially moving objects cannot accelerate with respect to each other, but objects in free fall do so. To resolve this difficulty Einstein first proposed the spacetime is curved. In 1915 devised the Einstein field equations which relate the curvature of spacetime with the mass, energy, and momentum within it.
Some of the consequences of general relativity are:
* Time goes slower at lower gravitational potentials. This is called gravitational time dilation.
* Orbits precess in a way unexpected in Newton's theory of gravity. (This has been observed in the orbit of Mercury and in binary pulsars).
* Even rays of light (which are weightless) bend in the presence of a gravitational field.
* The Universe is expanding, and the far parts of it are moving away from us faster than the speed of light.
* Frame-dragging, in which a rotating mass "drags along" the space time around it.
Technically, general relativity is a metric theory of gravitation whose defining feature is its use of the Einstein field equations. The solutions of the field equations are metric tensors which define the topology of the spacetime and how objects move intertially.
[edit] References and links
http://en.wikipedia.org/wiki/Theory_of_Relativity
I II III IV V VI VII VIII
1
1
H
2
He
2
3
Li
4
Be
5
B
6
C
7
N
8
O
9
F
10
Ne
3
11
Na
12
Mg
13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
4
19
K
20
Ca
21
Sc
22
Ti
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
31
Ga
32
Ge
33
As
34
Se
35
Br
36
Kr
5
37
Rb
38
Sr
39
Y
40
Zr
41
Nb
42
Mo
43
Tc
44
Ru
45
Rh
46
Pd
47
Ag
48
Cd
49
In
50
Sn
51
Sb
52
Te
53
I
54
Xe
6
55
Cs
56
Ba
57
La
72
Hf
73
Ta
74
W
75
Re
76
Os
77
Ir
78
Pt
79
Au
80
Hg
81
Tl
82
Pb
83
Bi
84
Po
85
At
86
Rn
7
87
Fr
88
Ra
89
Ac
104
Rf
105
Db
106
Sg
107
Bh
108
Hs
109
Mt
110
Ds
58
Ce
59
Pr
60
Nd
61
Pm
62
Sm
63
Eu
64
Gd
65
Tb
66
Dy
67
Ho
68
Er
69
Tm
70
Yb
71
Lu
90
Th
91
Pa
92
U
93
Np
94
Pu
95
Am
96
Cm
97
Bk
98
Cf
99
Es
100
Fm
101
Md
102
No
103
Lr
Legend
Solid Solid Liquid Liquid Gas Gas Synthetic Synthetic
Alkali metals Alkali metals Alkali earth metals Alkali earth metals Transition metals Transition metals Rare earth metals Rare earth metals
Other metals Other metals Noble gases Noble gases Halogens Halogens Other nonmetals Other nonmetals
Periodic Table first discovered in 1869 by Dmitry I. Mendeleyev is a way of presenting all the elements so as to show their similarities and differences. The elements are arranged in increasing order of atomic number(Z) as you go from left to right accross the table. The horizontal rows a called periods and the vertical rows, groups.
A noble gas is found at the right hand side of each period. There is a progression from metals to non-metals across each period. Elements found in groups (e.g. alkali, halogens) have a similar electronic configuration. The number of electrons in outer shell is the same as the number of the group (e.g. lithium 2·1).
The block of elements between groups II and III are called transition metals. These are similar in many ways; they produce colored compounds, have variable valency and are often used as catalysts. Elements 58 to 71 are known as lanthanide or rare earth elements. These elements are found on earth in only very small amounts.
Elements 90 to 103 are known as the actinide elements. They include most of the will known elements which are found in nuclear reactions. The elements with larger atomic numbers than 92 do not occur naturally. They have all been produced artificially by bombarding other elements with particles.
1
1
H
2
He
2
3
Li
4
Be
5
B
6
C
7
N
8
O
9
F
10
Ne
3
11
Na
12
Mg
13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
4
19
K
20
Ca
21
Sc
22
Ti
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
31
Ga
32
Ge
33
As
34
Se
35
Br
36
Kr
5
37
Rb
38
Sr
39
Y
40
Zr
41
Nb
42
Mo
43
Tc
44
Ru
45
Rh
46
Pd
47
Ag
48
Cd
49
In
50
Sn
51
Sb
52
Te
53
I
54
Xe
6
55
Cs
56
Ba
57
La
72
Hf
73
Ta
74
W
75
Re
76
Os
77
Ir
78
Pt
79
Au
80
Hg
81
Tl
82
Pb
83
Bi
84
Po
85
At
86
Rn
7
87
Fr
88
Ra
89
Ac
104
Rf
105
Db
106
Sg
107
Bh
108
Hs
109
Mt
110
Ds
58
Ce
59
Pr
60
Nd
61
Pm
62
Sm
63
Eu
64
Gd
65
Tb
66
Dy
67
Ho
68
Er
69
Tm
70
Yb
71
Lu
90
Th
91
Pa
92
U
93
Np
94
Pu
95
Am
96
Cm
97
Bk
98
Cf
99
Es
100
Fm
101
Md
102
No
103
Lr
Legend
Solid Solid Liquid Liquid Gas Gas Synthetic Synthetic
Alkali metals Alkali metals Alkali earth metals Alkali earth metals Transition metals Transition metals Rare earth metals Rare earth metals
Other metals Other metals Noble gases Noble gases Halogens Halogens Other nonmetals Other nonmetals
Periodic Table first discovered in 1869 by Dmitry I. Mendeleyev is a way of presenting all the elements so as to show their similarities and differences. The elements are arranged in increasing order of atomic number(Z) as you go from left to right accross the table. The horizontal rows a called periods and the vertical rows, groups.
A noble gas is found at the right hand side of each period. There is a progression from metals to non-metals across each period. Elements found in groups (e.g. alkali, halogens) have a similar electronic configuration. The number of electrons in outer shell is the same as the number of the group (e.g. lithium 2·1).
The block of elements between groups II and III are called transition metals. These are similar in many ways; they produce colored compounds, have variable valency and are often used as catalysts. Elements 58 to 71 are known as lanthanide or rare earth elements. These elements are found on earth in only very small amounts.
Elements 90 to 103 are known as the actinide elements. They include most of the will known elements which are found in nuclear reactions. The elements with larger atomic numbers than 92 do not occur naturally. They have all been produced artificially by bombarding other elements with particles.