
12-20-2012, 05:24 PM
|
|
|
2,131 posts, read 4,697,835 times
Reputation: 997
|
|
Pure energy is created when matter and anti-matter annihilate each other. But what is it exactly? Can pure energy be used or stored?
|

12-20-2012, 06:04 PM
|
|
|
3,222 posts, read 4,347,879 times
Reputation: 6547
|
|
It's "whats on your mind" according to Information Society.
I wanna know
What you're thinking
There are some things you can't hide...
I wanna know
What you're feeling
Tell me what's on you mind.
Pure energy
|

12-20-2012, 07:53 PM
|
|
|
22,267 posts, read 65,572,696 times
Reputation: 44760
|
|
Dunno, but my ex-girlfriend was the keeper of all the dark energy in the universe.
|

12-21-2012, 09:00 AM
|
|
|
Location: Westwood, MA
4,747 posts, read 6,243,719 times
Reputation: 5672
|
|
Quote:
Originally Posted by wrcousert
Pure energy is created when matter and anti-matter annihilate each other. But what is it exactly? Can pure energy be used or stored?
|
When matter and anti-matter annihilate, the products are usually gauge bosons (photon, W+/-, Z, gluons). All except the photon decay pretty quickly, so one would typically classify the photon as pure energy.
|

12-23-2012, 05:15 AM
|
|
|
35,316 posts, read 49,341,234 times
Reputation: 30953
|
|
I thought energy was energy. Pure energy? as opposed to impure energy?
Maybe some examples of energy that isnt pure would help me understand where you are trying to take the topic..
|

12-25-2012, 01:05 PM
|
|
|
Location: US Empire, Pac NW
5,008 posts, read 11,910,477 times
Reputation: 4125
|
|
Most laypeople don't understand that energy can take on many forms ...
Kinetic vs. potential (heat, momentum, gravity, magnetic)
All sorts of radiative energy (heat, light, decay, etc)
"dark" energy even
So basically there's many, many forms of "energy" and none of them are "pure." Unfortunately sci-fi has created this myth that there's something called "pure energy" that usually takes the form of some bright, shiny thing floating around. A scientist would classify that as some core giving off brilliant amounts of photon energy and potentially heat energy too, but there would have to be some core of matter giving off that energy.
And unfortunately most people cannot understand this so they just believe that there is such a thing as "pure energy."
So to answer your question, No, you cannot capture "pure energy" because "pure energy" doesn't exist.
We can TRANSFER energy to something, and do it all the time. We burn coal, use radioactive decay, and other means to turn water into steam, accelerate it through Venturi or other means, and make it spin a turbine, which rotates and creates electromagnetic flux energy by spinning a shaft which has electro or permanent magnets on it. This in turn creates the electricity we use every day. Other means are more direct, like using the kinetic energy of waterfalls or tides, or solar power which directly converts the photons from the sun to electricity through chemical processes.
As for storage, we're pretty much limited to chemical potential batteries.
|

12-25-2012, 03:46 PM
|
|
|
Location: Westwood, MA
4,747 posts, read 6,243,719 times
Reputation: 5672
|
|
Quote:
Originally Posted by eskercurve
Most laypeople don't understand that energy can take on many forms ...
Kinetic vs. potential (heat, momentum, gravity, magnetic)
All sorts of radiative energy (heat, light, decay, etc)
"dark" energy even
So basically there's many, many forms of "energy" and none of them are "pure." Unfortunately sci-fi has created this myth that there's something called "pure energy" that usually takes the form of some bright, shiny thing floating around. A scientist would classify that as some core giving off brilliant amounts of photon energy and potentially heat energy too, but there would have to be some core of matter giving off that energy.
And unfortunately most people cannot understand this so they just believe that there is such a thing as "pure energy."
So to answer your question, No, you cannot capture "pure energy" because "pure energy" doesn't exist.
We can TRANSFER energy to something, and do it all the time. We burn coal, use radioactive decay, and other means to turn water into steam, accelerate it through Venturi or other means, and make it spin a turbine, which rotates and creates electromagnetic flux energy by spinning a shaft which has electro or permanent magnets on it. This in turn creates the electricity we use every day. Other means are more direct, like using the kinetic energy of waterfalls or tides, or solar power which directly converts the photons from the sun to electricity through chemical processes.
As for storage, we're pretty much limited to chemical potential batteries.
|
I think by "pure energy" he means energy by itself as opposed to energy coupled with matter. And for that you've got the photon and the graviton and possibly dark energy if we ever figure out what that is. Otherwise that's a good description of energy.
Also, a small note, not all energy storage is chemical. A small but increasing amount is being stored in ultracapacitors as electrostatic energy. Also, most solar cells convert photons using semiconductor processes which are typically not considered chemical (as no chemical reaction takes place).
|

12-25-2012, 09:43 PM
|
|
|
15,919 posts, read 19,436,265 times
Reputation: 7680
|
|
What is PURE ENERGY?
It's my 2 year old grandson running around the house....
|

12-26-2012, 04:31 PM
|
|
|
Location: US Empire, Pac NW
5,008 posts, read 11,910,477 times
Reputation: 4125
|
|
Quote:
Originally Posted by jayrandom
I think by "pure energy" he means energy by itself as opposed to energy coupled with matter. And for that you've got the photon and the graviton and possibly dark energy if we ever figure out what that is. Otherwise that's a good description of energy.
Also, a small note, not all energy storage is chemical. A small but increasing amount is being stored in ultracapacitors as electrostatic energy. Also, most solar cells convert photons using semiconductor processes which are typically not considered chemical (as no chemical reaction takes place).
|
An interesting corollary to your observation is that inside superconductors photons do indeed have nonzero rest mass, which implies that the answer to OP's answer is really "Yes, we can capture 'pure energy'" but as a result of the superconducting forces the photons slow and thus interact with the Higgs mechanism to obtain mass. I'm a newb when it comes to particle physics and quantum physics, so you'll have to bear with me for a bit ... .
What is interesting is that experimentally we've proven that photons can have mass, but it is extremely small ... on the order of 10^-17 eV/c^2.
So, if we infer the OP's 'pure energy' to be that of massless particles in nature (assuming that experimentally we can prove massless particles really DO exist and aren't just mathematical flukes that just happen to fit our universe), then theoretically the answer would be to choose which one we want. If you want a photon, the answer is simple: a solar cell or a simple piece of black clothing. Black absorbs most wavelengths so it absorbs the most energy. It's the reason why people tell you to wear light clothing in hot, sunny climates to reflect the sun away.
|

12-28-2012, 02:03 PM
|
|
|
Location: in your dreams
18,465 posts, read 18,123,028 times
Reputation: 25357
|
|
|
Please register to post and access all features of our very popular forum. It is free and quick. Over $68,000 in prizes has already been given out to active posters on our forum. Additional giveaways are planned.
Detailed information about all U.S. cities, counties, and zip codes on our site: City-data.com.
|
|