Time may have existed previously to this universe

[BrainEater]

you ought not to forget that nothing moves as fast as light !!!! good old einstein found that out, so it's true!!!!!! they want to fool you

 

[Meduzz]

you ought not to forget that nothing moves as fast as light !!!! good old einstein found that out, so it's true!!!!!! they want to fool you

Not entirely: according to einstein an object needs an infinite amount of energy to reach the speed of light. But that doesn't mean there are no particles that move faster than light... :wink:

 

[BrainEater]

respect to the physicists for managing to fool the universe ... :mrgreen:

(good job getting an inifinite amount of energy just to shoot a particle around)

peace.

 

[druglessdouglas]

einstine didnt want to think about quantum physics at all. it messed with his head. it took niels bohr to pull that rabbit out of the hat. his theory of atomic structure, and more accurately his explanation of atomic spectra. the frequency of light(of a given frequency)multiplied by Planck's constant=the energy of one QUANTA of this light. but now im Bohring you

 

[st.bot.32]

einstine didnt want to think about quantum physics at all. it messed with his head. it took niels bohr to pull that rabbit out of the hat. his theory of atomic structure, and more accurately his explanation of atomic spectra. the frequency of light(of a given frequency)multiplied by Planck's constant=the energy of one QUANTA of this light. but now im Bohring you

Not at all, now if you'll excuse me, I'm off to feed Schroedinger's cat..

 

[BrainEater]

einstine didnt want to think about quantum physics at all. it messed with his head. it took niels bohr to pull that rabbit out of the hat. his theory of atomic structure, and more accurately his explanation of atomic spectra. the frequency of light(of a given frequency)multiplied by Planck's constant=the energy of one QUANTA of this light. but now im Bohring you

now for what would it be good to know how much energy is in one QUANTA??? i suppose there are quite many QUANTA in the frequency of light, as it is obviously vibraiting quite fast.

 

[st.bot.32]

now for what would it be good to know how much energy is in one QUANTA??? i suppose there are quite many QUANTA in the frequency of light, as it is obviously vibraiting quite fast.

Radio waves, solar cells and photosensitive equipment, anything that measures light or uses light in a chemical reaction.. etc etc.

 

[Meduzz]

now for what would it be good to know how much energy is in one QUANTA??? i suppose there are quite many QUANTA in the frequency of light, as it is obviously vibraiting quite fast.

Well the energy in the quanta depends on the frequency E=hf and h=planck's contant.

It was photon theory vs. wave theory. Take the photoelectric effect (when light falls on metal, it emits electrons): Wave theory predicted the maximal kinetic energy of the electrons was dependent (recht evenredig in english?) on the intensity of the light, because the electric aspect of the wave transmits a part of it's energy to the electron.

Photon theory, however, implies that the intensity of light is the amount of photons and not the amount of energy in the wave, so the maximal kinetic energy of the electrons is not dependent of the intensity, as one electron can only absorb one photon that transmits enough energy for the electron to leave its orbit.

Accurate experiments have proven the photon theory is right. But there is still a wave aspect in every piece of matter that gets more clear when the particle is very small... but that is the story of De Broglie :wink:

It has many uses in todays world, think of laser beams. They are created by stimulated emission of electrons that are already excitated (higher energy state, metastable)

 

[????????]

wavicles!

 

[Dantediv86]

dunno if you guys noticed you are talking about laws...
last time i checked Laws were meant to be broken.
haven't you learned to think out of the box yet :wink:

 

[BrainEater]

Well the energy in the quanta depends on the frequency E=hf and h=planck's contant.

now look: either you can calculate the energy of one "quanta" with this great formula...

or: you use the more elaborated formula from einstein: E=mc²
(that's easy... you got everything now: mass is known and the speed of light also)

or: you elaborate your own idea on how specific you want to calculate the energy of QUANTA as you replace the Planck-constant with the Planck-constant divided by the impulse of the particle.

or: you don't trust light because of its ambiguos qualities.


i just noticed why i didn't like physics in school....


peace. :weedman:

 

[Dantediv86]

not even Einstein sayd his formula was accurate, but closest to what he thought was the most plausible explanation of energy.
that means that actually there might be things that travel faster than light

 

[BrainEater]

i'd say it is quite probable that there are things that travel faster than light ...

the other thing is whether you see them or not. i mean you don't see the speed of light ... or ok well ... you see that it arrives nearly instantly at the destination. and now imagine faster travelling stuff...

but really... the fastest element ... it should supposed to be free whereever it goes... but then there are black holes which even suck light in which passes them by.

well that's not really an explanation but ok....

well to have something which travels faster than time you needed an infinite amount of energy according to the understanding of special relativity. it is just impossible to create this by humans, but it is possible though.

also: if you were faster than light you would be going backwards in time (or very fast into the future???), because as you go faster than light the passing time of the traveling "object" goes slower...

 

[buffachino]

Oh the abstract lengths people go to.
Keep on chasing that tail;
At least people are having fun.

Ever looked at the world through a glass sphere?
That’s what the cosmic microwave background represents; a fish eye view of nothing.
And this is what we base our eccentric speculations on?
We have really become the aliens in our own world.

Can we even be sure we exist?
Or is our existence a speculation in itself?
Herein lays the secret I think.
A dream of a dream.

Some people like semantics like this (GOD for example, in setting up this thread)
But sadly not I. I think it just gets people confused, and detracts from true exploration.

In conclusion; Bah, humbug!

P.S. I am the element that travels faster than light.

 

[druglessdouglas]

einstine didnt want to think about quantum physics at all. it messed with his head. it took niels bohr to pull that rabbit out of the hat. his theory of atomic structure, and more accurately his explanation of atomic spectra. the frequency of light(of a given frequency)multiplied by Planck's constant=the energy of one QUANTA of this light. but now im Bohring you

now for what would it be good to know how much energy is in one QUANTA??? i suppose there are quite many QUANTA in the frequency of light, as it is obviously vibraiting quite fast.

if you know the frequency of light you multiply it by Planck's constant and obtain the energy of one quanta of this light.
for example, if you found that orange light had a frequency of 4.8x10exp14 s-1 and multiplied it by Planck's constant you would have an equation like this-
E=hv=(6.6260755x10exp-35 J/s) (4.8x10exp14 s-1) =3.2x10exp-19J
so the energy of one quanta of orange light=0.0000000000000000000032 J

a quanta is like a packet of energy. for example- your cannabis plant will not synthesise glucose from CO2/H2O unless light of a certain energy level hits the chlorophyll contained in the chloroplasts in the leaves. if the light quanta striking the chloroplasts does not have sufficient energy the reaction between CO2 and H2O wil not take place even with the Mg atom acting as a catalyst because the packet does not contain enough energy to activate the chlorophyll

 

[buffachino]

The nature of individuality requires division in order to exist, to differentiate one form other, so assertion of an absolute indivisible would contradict its own existence.

Objectifying anything is just a line in the sand.
Completely arbitrary induction.

 

[Dantediv86]

finally somone who actually knows what he's talking about
thank you druglessdouglas

 

[Meduzz]

for example- your cannabis plant will not synthesise glucose from CO2/H2O unless light of a certain energy level hits the chlorophyll contained in the chloroplasts in the leaves.

There are other pigments around the chlorophyl that absorb quanta of greater energy and pass the excitation energy to the Mg atom. So a greater spectrum can be absorbed AND transformed to the energy level of Mg absorption. But indeed, lower than the energy needed for Mg will not be absorbed...

About time there is a science subforum... :roll: :lol:

 

[Brugmansia]

Well, if there's no matery, it's impossible to measure something. Time and space cannot be divided.

Which keeps the whole mystery about black holes intact, even light can't escape from a black hole. But it has been proved that they exist.

Before the big bang there was merely a dark and empty space, utterly empty and matery less. We'll never know where the signal for the big bang came from that started the expansion with only water and helium as two elements, and the fused energy that started it and still flows after 15.7 billion years.

As for now, it residents on a trancendal level which is produced by the supreme intelligence of our nature and the human mind is still too primitive to give a proven definition with a 'yes' or 'no'.

 

[druglessdouglas]

every element in you, or the universe in general, except hydrogen and helium, was created in a star. thats the nitrogen in the protein in your body, calcium in your bones and iron in your blood. everything. created in a star or stars that are now dead and even reborn as new stars. every one is truly a star