What is electrons? How do you convert them to light? Doesn't this make the flashlight lighter?
>>8155239
Yeah, pretty much.
>>8155239
No, they don't weigh less. The electrons flow through the battery, none are "eaten up" by the lightbulb. Energized electrons move into higher energy states. This is called an excited state. It is not stable, and the electrons will eventually move back down to their lowest energy states (except in some cases, such as phosphorescence). This move creates an electromagnetic disturbance we call "light". This light has energy equal to the energy released by the electron moving, which is equal to the energy it took to move the electron to an excited state. This energy comes from the potential difference on either side of the batteries, which causes electrons to move. When they move through a resistant filament in the bulb, they heat up the filament, causing the atoms to become excited. The voltage of the battery is created because of chemicals of opposite charge in each side of the battery. One of these chemicals has free electrons, the other can receive them. In rechargeable batteries, the chemical reaction between the battery fluid and the terminals attached to the wire can be reversed by adding energy to the system.
That's how flashlights work.
tl;dr no mass is displaced because there are the same amount of electrons in the flashlight at any given time, and light has no mass. The energy required to make light was already present in the battery.
>>8155245
Hey man, he could be serious, give him a break.
>>8155239
No, photons are said to have zero mass.
>>8155239
the electrons go through a potential energy change, this is the energy used to make the light.
But the electrons themselves just end up in lower energy state in another chemical on the battery. They literally flow from the neg to pos nodes.
Electron theory is nothing but a complete bullshit. Here is the correct answer.
As an empty space filled with air molecules, the vacuum filled with luminiferous aether. As you know, when you heating up an object, its atoms start moving faster. That oscillation is realy like a pulled string that pushed aether and create waves.
>>8155250
potential energy manifests itself as inertial mass
>>8155259
they have zero 'rest mass'
learn physics 101
>>8155328
> outdated relativistic physics
> physics 101
>>8155298
explain the chemical changes in the battery then. they require the flow of electrons
>>8155250
>The energy required to make light was already present in the battery.
But something left the flashlight or light and heat couldn't happen.
>>8155329
>physics
Which can't even accurately explain what photons are in the first place (Elementary Particle = we don't know what the fuck it really is).
Photons have mass and it is absurdly tiny. C does not = speed of light anymore (due to gravity being faster than photons.)
>>8155356
[math]\overline{\psi}(i\gamma^{\mu}\partial_{\mu}-m)\psi+e\overline{\psi}\gamma^{\mu}\psi A_{\mu}-\frac{1}{4}F^{\mu\nu}F_{\mu\nu}[/math]
Now stop posting.
>>8155330
>Electricity is the flow of electrons
kek
>>8155239
yes.
>>8155239
>What is electrons?
"Electron" is a magnetic field of atom
>>8155378
Einstein notation should be buried with his brainless eyeless corpse.
>>8155239
i think so, yeah. but the difference in mass would be absolutely minuscule, probably too small to measure.
>>8155430
Does your speakers get lighter when they play a music
>>8155432
if they ran on batteries, then i would think so.
>>8155432
Bad analogy, the person you are responding to is correct.
>>8155435
Yeah, and 1kg of dynamite is heavier than 1kg of rocks. I know, relativists logic.
>>8155441
if energy is being converted into light, and E=mc^2 then should the emission of light not be accompanied by a very slight change in mass proportional to the the energy converted into light?
>>8155441
The battery is undergoing chemical reactions to output energy, brudder, use your brain a little bit harder. Yes, the change is absolutely miniscule, but it exists.
>>8155239
if the flashlight runs on zinc air batteries, it gets heavier the longer it stays on. Otherwise, no.
>>8155239
Why do you think it's called 'light', retard?
Why are there two threads for this bullshit
How can so many people spend so much energy discussing completely pointless shit for so long every fucking day
What about nuclear decay changing it into other things?
>>8155250
Energy=mass
a clock that is ticking weighs more than a clock that is not; more energy in a system translates to more mass. Since energy in the form of photons are leaving the flashlight, the flashlight weighs less.
Everything else you said sounds right, though :)
