We are so used to some things that we stopped wondering about them. Like light. What is light? Some kind of wavy thing, right? Kind of.
Short bonus video for the people waiting for new stuff.
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What is light?
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Light is the massless energy transmitter of the cosmos. Approximately 8% flows in the cosmos. They are some kind of catalyst in a chemical reaction. They are never lost or gained. But they do miracles like splitting atoms chemical reaction etc. They are never trapped but help in switching states of matter etc. Other forms of energy are positional dependency of matter. They help in triggering huge movements including spin depending on intensity. They cannot be captured but can be bent split or merged.
I'm at highschool now and one of the subject that I learnt in school was talking about the wave particle duality in light, so why did you say it's a lie? I'm hoping that you can answer my question and I will appreciate it. Thanks!
The light that you see left the star 10 years ago, so when you look at the star, that light arrives to your eye. It's similar to rain: the raindrops condensed in the clouds half an hour ago, but when you go out and it's raining you don't need to wait half an hour for the drops to fall on you, even if they've been falling for half an hour.
I'm sorry, but "light is... energy"... and "[energy] can be destroyed"???
Umm - unless you can demonstrate that zero point energy exists... (or are you subliminally suggesting it does??) - then energy can neither be created nor destroyed... only changed in form. It will convert from one form to another but will not be destroyed.
1st law of thermodynamics guys, srsly.
@+Chloé Alaïa There are a couple of concepts here that should be clarified. First of all, light's energy doesn't lie in the "wave-particle duality". Light, as a wave, can make particles move- which means it carries energy and momentum, like any other wave. When I mean light, I don't mean visible light but any part of the electromagnetic spectrum. For example, to create a current in an antenna, the electrons need energy which is provided by the radio waves. The energy in the radio waves is being transferred to moving the electrons.
"Light the smallest quantity of energy that can can't be split, only created and destroyed" - This sentence is just wrong. What is correct to say that at a certain color, light has a minimal value of energy possible above "0", which is commonly referred to as "a photon". Because it is the minimal amount of energy, it can't be split, only created and destroyed. Is this clear? Because if not, please ask so I could explain in a better way (please specify what wasn't clear)
+ofek10 okay, so the l͟i͟g͟h͟t͟ can be destroyed - not it's 'energy'? (i.e. the wave/particle duality)?
So, when you say light, do you mean the light that is visible? It's strange, because Steve starts the explanation by stating "light is the smallest quantity of energy [...] that can't be split, only created and destroyed" - hence my confusion as to how this claim of such energy can be created/destroyed.
Light can be destroyed by transferring its energy to a charged particle e.g. electron in an atom. No contradiction to conservation of energy. Light isn't energy, light has energy - just like a kid on a slide has energy.
Maybe light is, what is our universe build on. I always think about big bang. They say matter exploded. That means light were spreading trough "nothingness" or diferent dimensions becouse it is way faster than matter. It appears to me that light is more real than our space wich has to have end, start, and time. Time couldnt start becouse it didnt exist before it started.
What's so special about visible light? Absolutely nothing. *Apart from being able to be seen with the naked eye of the most intelligent being that had the largest influence on planet earth and probably the only beings to understand the universe so well.*
And this all came from evolution?! Stop believing the lie! The parameters for life are simply too narrow to allow for ZERO error. No amount of time would allow for so many accidents to occurre. Let alone the time taken into account for trial and error. I'm sorry, but the delicious apple I'm about to eat, is in NO way, related to my Mom, or a dog, or a ball of snot, or anything else. You can't accept anything else because that would allow for a possibility of Intelligent Design. Aka GOD. Stop being ignorant and look around you. What you see and experience was created and designed to be, and function, like a we'll oiled NASCAR. Exact precision doesn't just happen by accident. That's like seeing a painting in the museum, and forgetting that a person had made it. The picture didn't create itself, we agree on that, yes? But why not the existence of a Creator of our own earth?
We know that the closer you get to light speed the less time goes by (in your perspective)and the more time goes by (in other people’s perspectives.) so AT light speed no time passes at all (in your perspective) and any amount of time may pass (in other people’s perspectives.)
If things that have a mass >0 can't reach lightspeed, and photons that have no mass are traveling at light speed, could something that has a negative mass then maybe reach higher speeds than that? Just a random thought...
2:45 wrong, there is a phase difference
3:10 wrong, Einstein took the speed of light as the fastest speed to travel through space because it is the fastest thing we can produce in the lab, once we can achieve higher speeds, the speed of light wont be the fastest to travel through space, this is one of the restraint relativity hypotheses
I think light behaves as the wave-particle duality, because it travels outside of our observable time frame.
Due to physical limitations, observers can only observe things that have already happened. By the time they detect something, it has already happened in the past.
Light, on the other hand, moves so fast that it's always at the present moment as things happen in the linear time and physical space.
Basically, light will always move slightly faster than a physical observation, so it seems to exist all over the place as a wave of probabilities until it has finally been observed, at which point the light has already become a part of the past(time frame we can observe) as a particle, or an information of a fixed position of light that has been observed in this particular space-time.
Looking at it that way, light perhaps exists at the borderline between matter with mass and non-matter.
C, the speed of light, would most likely be the maximum frame rate of the material universe, because it exists right on the speed limit. Anything slower than light would produce mass(a fixed position in space-time which is perhaps what creates gravity), and anything faster would probably leave our linear time frame and become unobservable by direct physical means.
Meaning light would appear as a wave of probabilities the moment before we detect it due to light being outside of our fixed space-time, and it would appear as a particle after we do observe it and it becomes a part of the past. But it only appears as wave-particle from our linear time perspective for both cases.
It is quite possible that light exists as some other state above the C barrier, but we're only able to see it as light in the physical universe, the same way 2D beings would only be able to see flat shapes when looking at 3D beings.
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