I suppose, that we could make it in two methods.
1. Make the vessel is filled with water (in water light slow down) and does not obstruct the light, with the opening through which we will illumunate it. If its mass increases, photon should have mass, if not, they do not.
2. Ensure that the weight is increased after exposure of the photosensitive material. This is doubtfull for satisfy verification.
To start with, try the references for this article:
https://en.wikipedia.org/wiki/Photon#Experimental_checks_on_photon_mass
I did not know , about this article. In Hallidays hanbooks to physics wrote that photon got not mass. Thank You.
The full equation is:
E2 = (pc)2 + (mc2)2
That reduces to the famous form only if the momentum p = 0 so is valid only for objects at rest. The equation can be used as a definition of mass:
m2 = (E/c2)2 - (p/c)2
For photons, E = p hence m = 0 and that so far is consistent with all measurements.
Yes, a single photon has no mass but a collection contributes to the mass of a container because momentum is a vector so on average cancels out while energy is a scalar so adds.
W zasadzie zgoda, tyle że jest to prędkość światła podniesiona do kwadratu, i masa cząstki zbliżając się do niej traci masę zamieniając się w energię.
Ponoć neutrino, przekroczyło prędkość światła, lecz nie prędkość światła podniesioną do kwadratu, 3 lata temu było o tym głośno. Ad hoc powiem, że gdyby zapisać informację na neutrino, moglibyśmy wysłać wiadomość poza horyzont poznawczy.
Właśnie woda spowalnia fotony, dlatego taki pojemnik mógłby je gromadzić, to byłby bardzo niewielkie liczby, dlatego potrzebna jest bardzo ścisła waga. Może jakiś inny ośrodek cieczy mógłby doprowadzić je do masy spoczynkowej.
I do not know. But when somebody will be faster then light we will be got illusion thath this teleportate. Bacaouse we see per ligth, we did not see heaten. O! Maybe when we observate particles per heaten we will see somebody faster then photon.
The photon does have ``weight''-it interacts with a gravitational field-that's what's called ``bending of light'' and is being tested all the time by GPS receivers. If electromagnetic waves didn't get affected, then this would have been noticed.
It just doesn't have mass.
ZM: George has really great knowledge (you can gain a lot of that) and fluently operates English, as it is likely his native language.
It is, and it is my only language so I have to ignore anything in other languages. Google Translate has a long way to go before I could use it for a technical discussion.
The "super-luminal neutrinos" turned out to be a faulty fibre-optic cable carrying one of the clock timing signals. The reference GPS receiver had to be above ground of course but the lab was deep underground so a long cable was needed. The was a faulty connector where the cable was misaligned and it added about 60ns to the signal time beyond the delay that had originally been calibrated.
Weight is a somewhat ambiguous concept, see the Wikipedia introcudtion for example:
https://en.wikipedia.org/wiki/Weight
In our modern understanding, there is no "force of gravity" but the definition of the upward reaction force applied by a set of scales to prevent an object following its natural geodesic to the centre of the Earth remains valid. In that view, you could equate the "weight" of light to its radiation pressure.
If you take the view that weight is the mass multiplied by the local acceleration of gravity, obviously a photon has no mass hence no weight, but a box, mirrored on the insides and full of light, weighs more than the same box without the light. Again that is due to radiation pressure.
I do not agree thath force of gravity does not exist. I make experiment with two object, and see something desribe in above article. I wrot KgN, but i mean Kg, its mistake.
My theory approve eliminate gluons and replace it per force of gravitation imply from mass.
Electron got load + or -, Earth too, but Earth is 6 polar pole.
If photon got not mass, then Larmour thesis about tranquiluty is wrong. Lets try light saber, then we will got falsification or veryfication, whether photon got mass.
We could verify this by making an ice center that should accumulate photons, as the light in the aqeuous medium slows down. if it weight increases, the photon has mass if the same ie does not accumulate photons or the photon has no mass.
- Badges
- Science topic