Thursday, May 04, 2017

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#facebookethyasean 04 05 17
🙂សួស្តីប្រិយមិត្តជាទីរាប់អាន🙂!!!
សូមប្រិយមិត្តរីករាយកម្សាន្តជាមួយនឹងនាងខ្ញុំនូវចម្រៀង១បទក្រោមចំណងជើងថា
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និពន្ធទំនុកច្រៀងដោយលោកហេងថាល់សាវុធ
ច្រៀងដោយកេត្យាស៊ាន😂
Posted by sean at 9:02 PM

1 comment:

Anonymous said...

Is photon a particle or wave?

In college, it took me only a few seconds to decide photon to be a particle with mass, and definitely not wave. As usual, I would argue to my heart content against my Physics professor. I also ridiculed Einstein's explanation, "Photon has no mass".

I exclaimed, "Such a convenient way to break the paradox: Any thing travels at the speed of light, would have an apparent infinite mass." (Since photon is massless at speed of light, the apparent mass = zero = massless*Lorentz-factor.) Then I mocked other scientists, "But then Einstein conveniently decided photon had a little mass in his equation derivation, E=MCsquared."

As I grew older, chance encounter made me understand things better. In my early 30s, during an interview at IBM Sequent Computer group, and I was asked, "What's the difference between hardware and software? Why are there hardware and software?"

I answered, "There has always been hardware. You can have hardware without software. You cannot have software without hardware. The real question was: We already have hardware, why do we need have or need software?" The interviewer was quite flabbergasted.

I used philosophized, "Software is an abstract object, a human interpretation, recognition of a particular logical combination of the states of the electrical values residing in the hardware."

The same philosophy can be applied to the laser dot puzzle which is claimed to be traveling at twice the speed of light, violating Einstein's special relativity law.

A hard-core Physics friend of mine posed me a puzzle. He claimed that by pointing a laser pointer at a distant moon, then quickly point to another moon at distance, he could effectively cause an appearance of a dot traveling at twice the speed of light, 2c, between two distant objects.

My answer was quite simple:

1. The dot is an abstract object. One can imagine a bunch of photon reflecting at a spot as a dot, but the dot is not a real object. An abstract object has no mass and can travel at infinite speed, only limit by our imagination.

2. There is no photon traveling between two moons, hence, there is no physical object traveling at 2 c. Thus, the law of physic has not been broken.

3. I can sit on earth and imagine more dots on distant galaxies appear and disappear, then reappear on yet different distant galaxies. It's just my imagination, and there is no physical photon involved.
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With all of that said, I claim: A wave is an abstract object, an interpretation of a combination, a movement among a bunch of particles. A wave is not a physical object.

We can have particles without wave. We cannot have wave without particles. The begging question is: We already have particles, why do we have wave?

Human minds recognize patterns and make interpretations. We must not think that abstract objects could affect physical objects.

To affect a physical object, one must employed another physical object. This is my Physics law, a corollary of:

"Newton's First Law states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force."

In Young's https://en.wikipedia.org/wiki/Double-slit_experiment

I intuitively explain, "Photons appeared to strike in the interference pattern because there is a medium which the photons were traveling through, affecting the photons' path." Coincidently, some scientists also explained in the same manner, Pilot-wave theory.

Honestly, I am using the farmer-intuition to understand nature. Nothing fancy really.

-Anonymous-

P.S. Scientists already repeated the double-slit experiment with C-60 bucky-balls made of 60 carbon atoms formed like a soccer ball. It's nonsense to think a bunch of carbon atoms some how congeal into a big resultant wave, then traveling through the double-slit to reflect an interference.

6:27 AM

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