Bruno da Silva Posted August 13, 2015 Share Posted August 13, 2015 Specially Sun's energy? Link to comment Share on other sites More sharing options...
swansont Posted August 13, 2015 Share Posted August 13, 2015 Energy is not a substance, it is a property of things. So there is nothing that attracts energy, as such. Link to comment Share on other sites More sharing options...
fiveworlds Posted August 13, 2015 Share Posted August 13, 2015 A black hole of course. Gravity, Lenses and Cold to name a few Link to comment Share on other sites More sharing options...
Bruno da Silva Posted August 13, 2015 Author Share Posted August 13, 2015 Lenses? Link to comment Share on other sites More sharing options...
fiveworlds Posted August 13, 2015 Share Posted August 13, 2015 Yeah concave lenses focus light on a point. Link to comment Share on other sites More sharing options...
swansont Posted August 14, 2015 Share Posted August 14, 2015 Yeah concave lenses focus light on a point. That's not an attraction, though. That's an effect of light changing speed in a medium coupled with the proper geometry of that medium. And photons are not energy, though they have energy. Link to comment Share on other sites More sharing options...
DimaMazin Posted August 16, 2015 Share Posted August 16, 2015 That's not an attraction, though. That's an effect of light changing speed in a medium coupled with the proper geometry of that medium. And photons are not energy, though they have energy. Medium doesn't increase energy of photons. Sticking together of laser beams increases energy of their photons. Link to comment Share on other sites More sharing options...
swansont Posted August 16, 2015 Share Posted August 16, 2015 Medium doesn't increase energy of photons. Right, it doesn't. I don't see that it was suggested otherwise. Sticking together of laser beams increases energy of their photons. Um, no. You increase the number of photons, but the energy of each photon from the laser stays the same. Link to comment Share on other sites More sharing options...
DimaMazin Posted August 16, 2015 Share Posted August 16, 2015 Um, no. You increase the number of photons, but the energy of each photon from the laser stays the same. I don't think an approaching of photons increases their number. I think any increase of energy concentration increases energy of approaching( to each other) particles,though the increasing energy is tiny. Link to comment Share on other sites More sharing options...
Delta1212 Posted August 16, 2015 Share Posted August 16, 2015 I don't think an approaching of photons increases their number. I think any increase of energy concentration increases energy of approaching( to each other) particles,though the increasing energy is tiny. He didn't mean that it creates new photons. He meant that it redirects some photons so they all hit the same point, which increases the number of photons that hit that point (by decreasing the number that hit other points) and therefore increases the amount of energy that that point receives. But the energy is increased because more photons are hitting it. The amount delivered by each photon remains the same. Link to comment Share on other sites More sharing options...
DimaMazin Posted August 17, 2015 Share Posted August 17, 2015 He didn't mean that it creates new photons. He meant that it redirects some photons so they all hit the same point, which increases the number of photons that hit that point (by decreasing the number that hit other points) and therefore increases the amount of energy that that point receives. But the energy is increased because more photons are hitting it. The amount delivered by each photon remains the same. How does that relate to attraction of laser beams? Link to comment Share on other sites More sharing options...
ACG52 Posted August 17, 2015 Share Posted August 17, 2015 Laser beams aren't attracted by anything. Link to comment Share on other sites More sharing options...
Acme Posted August 17, 2015 Share Posted August 17, 2015 If the original poster or other person stands barefoot on a hill in a thunder storm and holds a long pointed metal rod up high there is a fair chance of attracting lightning and said lightning has energetic properties sufficient to extinguish quite a few life forms in the immediate vicinity. Link to comment Share on other sites More sharing options...
swansont Posted August 17, 2015 Share Posted August 17, 2015 How does that relate to attraction of laser beams? You're going to have to do a better job of describing the effect you're thinking of. Especially important when it's a new area of discussion with no context. If the original poster or other person stands barefoot on a hill in a thunder storm and holds a long pointed metal rod up high there is a fair chance of attracting lightning and said lightning has energetic properties sufficient to extinguish quite a few life forms in the immediate vicinity. Still not attraction of energy. You're facilitating a current flow, which has energy, but is not itself energy. Link to comment Share on other sites More sharing options...
ajb Posted August 17, 2015 Share Posted August 17, 2015 Like swansont says, energy is not a thing itself and so the question of attracting it is not so well stated. We have things called heat pumps. But I do not think this is quite the same as 'attracting' energy. I also wonder if one could say something in terms of the second law of thermodynamics for closed systems, rephrased as the minimal energy principal. But again, this is may not quite be 'attracting' energy. Link to comment Share on other sites More sharing options...
Acme Posted August 17, 2015 Share Posted August 17, 2015 If the original poster or other person stands barefoot on a hill in a thunder storm and holds a long pointed metal rod up high there is a fair chance of attracting lightning and said lightning has energetic properties sufficient to extinguish quite a few life forms in the immediate vicinity. Still not attraction of energy. You're facilitating a current flow, which has energy, but is not itself energy. I was facilitating facetiousness and echoing wording in your post #2, not claiming an attraction of energy. Link to comment Share on other sites More sharing options...
ACG52 Posted August 17, 2015 Share Posted August 17, 2015 I don't understand how misinformation facilitates anything Link to comment Share on other sites More sharing options...
Acme Posted August 17, 2015 Share Posted August 17, 2015 I don't understand how misinformation facilitates anything I didn't present misinformation, I presented a joke. You not getting it or not finding it funny is out of my control. Link to comment Share on other sites More sharing options...
ACG52 Posted August 17, 2015 Share Posted August 17, 2015 (edited) I didn't present misinformation, I presented a joke.You left out the funny. Edited August 17, 2015 by ACG52 Link to comment Share on other sites More sharing options...
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