Neil deGrasse Tyson: Faster than the Speed of Light
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- čas přidán 3. 04. 2013
- Could the Big Bang have been the result of something traveling faster than the speed of light? In answering Jeff Sloan's Cosmic Query, astrophysicist Neil deGrasse Tyson and comic co-host Chuck Nice discuss Cherenkov radiation, sonic booms and light booms, and why a diamond sparkles. Find out how we can conduct faster-than-light experiments if it's impossible to travel faster than the speed of light in this "Behind the Scenes."
This "Behind the Scenes" video was shot during the recording of our episode, "Cosmic Queries: Time-Keeping." If you'd like to listen to the full podcast, click here: www.startalkradio.net/show/cos...
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I love this guy, he explains everything on a way that I can easily understand
Sorta like a Teacher.
In case you were wondering, it is spelt like this: "Cherenkov" radiation
"So space itself, is the explosion?"
"Duh."
Sounds Russian for me)
I can spend the whole day listening to him! DAMN!!
Been out of school a long time, but as far as I recall, the speed of light is constant; it travels at different velocity based on the medium it's passing through. So diamond to air would be "diamond speed" to "air speed"
I’m always slower when I travel through carbon.
this is the first episode/vid i've seen of yours. i do watch a lot of N.dG.T. videos, but had to click subcribe on this one. good stuff, man. even if i can't quite wrap my brain around parts of it 100%
Lol I love how the interviewer is trying to act like he is totally understanding exactly everything tyson is saying, and trying to stay focused.
He is actually a great listener and understands well..
So light isn't actually slower in a medium, its just bouncing off the molecules in the medium making the light take longer to get through?
yup because speed is a factor of distance over time.
the path through a substance is longer than the path through "empty" space
lets say you are traveling from east coast of USA to west coast... if it were an empty land, it would take you 100 unit of time and we know the distance is 1000 unit so your speed is 10 distance/time then again land is full of tourist attraction so you spend a day in each city and when you finally reach west coast, look at time!! 10.000 unit of time passed so your speed reduced to 0,1 distance/time.
But if you narrow your reference point, you still travelled with 10 distance/time speed from one city to another, it just taking photos lowered your average!
yep light will never change its speed, it just takes longer for it to get though the medium since its taking a longer path due to refraction
no man light does not just bounce off the molecules of the medium in which it is moving and taking it longer time to travel but the fact that light has a particle-wave nature and due to the net wave property of the wave of the photons and the wave of electrons, the light behaves like the net wave of the medium and hence travel slower through medium other than the vacuum itself.
That question is really awesome!
Funny story. When i was a child i told my cousin that i could run into the room b4 he turns on the light. Not to mention i was always a husky kid. But i actually thought i could do it. Needless to say the light won every time. So for a while i became obess with beating the light. Like i said i was like 6 or 7 years old. I always tried to open the refrigerator door b4 the light came on but of course i would always loose. Until i found the release button for the light.
Fascinating.
If you are using c (186mps) in your math you will have to also involve the academic construct of time T1 and T2 to apply a logical framework to the 2 moments used to measure speed.
replacing c with ±∞ or Vi allows you to remove the reference of time from some calculations arriving at a solution without having to fabricate alternate dimensions to hide the math errors from using c
I learnt a lot from that!!
@ScottGeronimo You got that right sir!!
Ali was faster than the speed of light. He could turn the light switch off in his bedroom and be in the bed before it got dark...
Yes, he indeed was!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
in that case, Ali is faster than electricity.
Much faster...
hahaha he was a superhuman!
Be like Ali
Fascinating
i love how into it the guy asking the question is XD
Old but Gold
i love chuck nice
I meant to say ±∞ has a vector of Zero which is not the same as saying it has no vector.
it's vector will be outward in all directions (big bang)
movement is not needed to define a location but 2 defined locations are needed to establish speed in all cases except with the absolutes of speed=0 or speed=Vi
This is awesome 👏
I really like the host.
That stuff about the diamonds that he just threw in there was the bomb!
Cool radio guy! And smart too
takes me back... kudos tyson you great populariser you :)
Question: In a fixed universe(where every atoms can be mapped and its properties such as position, temperature, and speed can be determined), Is it feasible to predict every probable results as to what the weather will be in two decades on a specific date? And how would entropy affect the outcome?
Well that's what I was getting at...the valance shells are composed of light.
The light merges with the particle (or aggregation of particles) increasing the energy density.
If the light quanta absorbed into the particle (or aggregation of particles) is harmonic, the light is not released.
if it is dis-harmonic the light quanta is released when it's arrival waveform is calved from the particle.
The torsion angle at which the light is released depends on spin angle and "refraction".
Love you guys! (Better Audio quality would be nice; I know those Mics are fancy enough) ;)
+Andrew Kutnyak We agree, Andrew. This was an earlier video, from the "shaky cam" days of handled digital cameras capturing our behind the scenes videos. We've improved our videos, and our audio.
+StarTalk Radio can you get neil to get a video for us of this phenomena?
StarTalk Radio hey guys what's up?
Epic. Wish we knew what the universe expanded within.
yep
Yes, exactly.
That made a ton of Sense. Something Insider/Professors and Scientist only Know
using all 3 finite references of the speed of light allows one to "triangulate" accurately his frame of reference from the big bang (point at which space has compressed light and impeded the speed of light to a singularity) allowing one to accurately fix a future position in expanding space (from the reference of the singularity)
Using all 3 allows one to accurately locate and fix the singularity as a frame of reference, necessary for the construction of light bridges for instant travel
I just have to say it...this is the reason why I love science :)
Neil does not disappoint not to often I learn something new about light.
Just because no one had replied in 10 years
Right. It depends on how you're measuring it. If you're measuring it black-box (seeing the speed at which it gets from point A to B) it is slower, but it is not actually slower.
My analogy is: it takes you 1 minute to get to work at 60 MPH, but will take longer if you stop at every shop along the way, even if you travel between them at 60 MPH. You never travel slower than 60 MPH, but it will take longer than 1 minute to get to your workplace.
there is video... I never knew...
dimensions are a perspective of analysis...not a place or a state of being. the 3 dimensions are height width and length. a 4th dimension can be any additional measurement you might want to include.
dimension is a subject word used with a descriptive modifier to classify a type of measurement.
so the warp flash is real when. the enterprise takes off
A real badass Geek! An answer for most things! WoW!
Except, of course, that lucky proton that travels straight through without interacting with any electrons (hence the denser the transmitting material, the higher the refractive index).
Hold on...I read that light really doesn't slow down while going through various media. It's just that it takes longer for the light to find a route around the molecules. Light in a vacuum would be like a ball bearing rolling down a board. Light in water, or glass, would be like the ball bearing rolling down the board if it had a grid of nails in it. The ball bearing would have to zig-zag its way to the bottom. I'd like some clarification on light moving slower than the speed of light..
Neil is a beacon for popularizing science along with Michio Kaku (physics of the impossible). What is described here is real physics through mathematics. We now know light can be warped through the bending of space-time and that light speed may have not been constant at the early stages of the universe (380,000 years after the big bang). It is truly the golden age of discovery...
You mean like... if the light potential or wavelength is not changed as it travels through a substance...it exits at the same trajectory but if it has interactions those interactions diverge the path of the energy because it has changed the potential or wavelength in relation to the field qualities of the
substance
The light travels the same speed through the diamond... But It has to travel farther within the diamond and as a result takes longer to traverse across the gem to the other side.
From an external frame of reference though it appears as if the light slowed down
Tyson's answer to the question was so incredible, its almost hard to believe that it was not staged!
gravity can also be a result of a localized density fluctuation in space fabric causing a change in the impedance of space which in turns bends the path of a trajectory toward or away from the space density fluctuation.
Neil!!!
The light could travel down to the speed of light?
A luz pode viajar a baixo da velocidade da luz?
Great but I got dizzy and felt nauseous after camera moving too much during the video. Don't you guys have a tripod?
You raise an interesting point. But to confirm the existance of wormholes, for example, we have to detect light from stars or any object reaching us, knowing beforehand that the actual distance to that object is greater than the one we are detecting. Then, the conclusion would be we are seeing them through a wormhole. And that has not happened yet. This is from the top of my head. I don't really know other tests that can be done.
Wow, NICE VEST!
Once I hear that if it could be possible to reach an extreme cold temperature like -700 Celsius degree a beam of light would travel so slow, and that effect could possible be use to store the whole libraries books in the world in the point of a spin.
¿any thoughts on that?
In fact what I said was that MY model shows that all energy, mass, momentum, and gravity remains constant in an expanding universe where the theory you quote from ASSUMES they diminish as the universe expands.
E=Mc^2 does not factor for the expansion of space reducing the impedance of space on light allowing light to accelerate to it's default state of instantaneous velocity. The assumption that E=Mc^2 breaks down at the universal frame assumes that the default state of light is zero velocity.
regarding the aether you will find energy (light) moving along the interface between the fabric of space and nothingness.
Energy can move through space as a wave (radio, light waves) or as a particle = a toroid or a sphere where there is an evacuation in the fabric of space.
The pressure of space and the impedance on light from space creates a tension that gives a spherical wave formed of light a certain size (particle of matter).
Space and light do not mix.
Example photon enters atom is absorbed and re-emitted without a loss or gain it will exit on it's incoming trajectory whereas if it's wavelength is altered so is the geometry of it's transition. if the wavelength of the light perfectly matches the wavelength of the electron cloud it is absorbed driving electrons to a higher orbit and then remitted when that higher state collapses.
But if the wavelength of the light is disharmonic it may result in a diff trajectory or express as a diff particle
At the singularity the impedance of space on light breaks down much like the resistance in a winding breaks down at a certain magnetic field density... Singularity overcomes compression of space and the singularity explodes. space and light expand, the speed of light accelerates from zero (singularity) rapidly towards Vi until the field density is reduced to a degree that the impedance of space on light resumes and light finds a speed at a stable ratio to the expansion of space
I should not have said flawed theory because within the model it was designed for it's accurate but it doesn't translate over to my model so the proper thing I should have said is that "The conservation of energy not applying at the scale of the universe" might work out in the conventional model but my model solves the problem a different way resulting in a different theory...
I sometimes forget I'm comparing completely different models.
that has enveloped our understanding of the universe. Through quantum mechanics we can see that sub-atomic particles react randomly. Theories suggest that an "observing" sub-atomic particles have a reaction on how they appear to our observations. My final thought is, "What is reality? Is it what I see, or is it an absolute truth?" For me, Fractals have solved some of those questions. But what I perceive is a whole other world compared to what you or anyone else sees.
so as space expands because of exigent physical laws it's impedance on light diminishes and light speeds up. as light speeds up into expanding space...conservation of energy exists in a constantly expanding universe that never cools and never contracts
I'm not a physicist either not professionally.
I'm working on identifying and re-evaluating assumptions in physics and modeling alternative theories based on the same data much in the same way calculus reformulates equations and compares them to solve different problems. you can take an equation with 5 variables and present it more than 5 different ways each way a different function but also each one the same truth. I'm formulating different expressions of physics from the same data
There's meta materials now that can slow light down to just a small fraction of C.
Crazy stuff....cool mini lecture, never realized the diamond did that...
Even plain old water slows down light to a fraction of c... still is a pretty big fraction though :)
I would say the same thing except I'd say that the light is not traveling along a straight line but along the interface between space and nothingness along the "skin" of mass (mass particles= spherical waves of light).
Not that it shoots through space and mass like a bullet but like a ray that encounters a spherical field and collapses to a field which rides along the skin of the sphere and is then released on the other side along the same trajectory with no loss of energy
yes the medium is slowing down the light from point A to point B but th light itself does nto slow down...it merely encounters a more complex path within the diamond
A perfect example...
You drive through Saint Louis on the interstate at 45 miles per hour
IF you were to get off and back on at every cloverleaf ramp your trip would calculate out much slower than 45 mph even if you never slowed down
The photon that enters the diamond is not the one that leaves. The propagation of the light through the diamond is a series of photon-electron interactions. A photon interacts (and is "destroyed") with an electron by imparting its energy to the electron. The excited electron releases the energy to return to its more stable state in the form of a new proton. Feynman diagrams rock!
is a whole other question entirely. What is reality? It (to me) is perception of your entire experiences in a socially human constructed (nurture-based) experience of your brain's understanding of the electrical impulses (senses) creating a comprehensive understanding of the projection of particles around us... The understanding of the Planck scale entities are true nature at its primordial.
Essentially the reality you sense is nothing more than software running in a very complex waveform of energy you yourself being also a waveform within this holographic universe.
The form the energy in this dynamic hologram has taken is what gives everything solidity
No it actually does slow down. When a photon enters a medium it effectively becomes a different particle, called a polariton, which is a superposition of the wave functions of the photon and the medium. Effectively it is taking every possible path through the medium rather than just bouncing around randomly. This polariton has mass, meaning that it actually moves at less than the speed of light.
Light doesn't go Slower than its own speed in a diamond. It's just that in a diamond, there are mirror fractals that light has to refract(or enter a new medium) which take longer time.
There are 3 known speeds of light that serve as excellent benchmarks.
1) singularity, ±∞ a single immobile point of light at the moment of absolute impedance from compression of space (no movement, math breaks down).
Moment here means WHERE (from engineering) not WHEN...
1) c- 186 miles per second
3) Vi instantaneous velocity... Light at Vi has no vector because it is everywhere at once
±∞ and Vi can be substituted for c to calculate different aspects of reality without altering physics
I like to converse with people who see the bigger picture rather than stepping on the same stones over and over again. I like to get an understanding of the case rather than debate about the mathematical or physical possibilities. I allow myself to be greater than debating what has not yet happened and also we should recognize that we live in modern times and so we must overcome these questions and find answers. Time is a mystery, but the more we define it, the less precious it will be. I am against defining too much. I would never try to force a magician to show me how he made his trick.
Time is relative, but humans will not stop arguing and making definitions until all awe and wonder is gone. I would be glad if you find an argument against my thesis.
Can anyone explain the last few lines that he said?
laureates, not winners - everyone is a winner in the world of physics and understanding of the universe
Just be grateful that there's nearly 9,000 of us out there that watch real shit.
The fact that two point masses attract is indeed the law of gravity, the reason why is the theory of gravity.
essentially light is slowed down from Vi to 186mps. C is useful in calculating the impedance of space in relation to gravity. gravity is an artifact of universal expansion as space drags matter via it's impedance on the light that composes matter magnetism being also an artifact of space's impedance the on the light composing matter but is a result of dilation of space flow and not an artifact of the underlying expansion.
NDGT is a living embodiment of knowledge!
I had a question to ask seeing this video has answered it this was my question -- For us humans traveling at the speed of light time for us slows down the closer we get to the speed of light - my question does light experience time ? Photons 😁 I love these videos 👍😎
I like it
A Theories job is to explain facts about something. The "Theory of gravity" is explaining facts that we now about gravity. A theory is the highest form of explanation.
The lowest Celsius temperature possible is ~ -273.15. The Celsius scale and kelvin scale are linearly matched. At zero Celsius, it is 273.15 kelvin. Since the lowest kelvin temperature is zero, otherwise known as absolute zero, that would make it -273.15 Celsius.
Neil deGrasse Tyson in another video explained that light travels through a non-vacuum slower than a vacuum because although the photo always travels at the speed of light, in a non-vacuum the photo is constantly absorbed and re-emitted causing the apparent delay. Does anyone have a link for that video? I've spent ages searching for it, and haven't found it again.
I found it, you still need it?
@@ericacannon5832 Yes please.
The Soviet scientist Pavel Cherenkov who discovered the Cherenkov effect won the Noble Prize in Physics in 1958.
why doesn't the other particle also slow down in a different medium that is, diamond?
Neil deGrasse Tyson, the best voice in astrophysics.
One example of space flow is the magnet. Currents of space are created or biased by the alignment of the iron atoms. it has something to do with their spin angle and electrons
But anyways
magnetic fields expand and collapse as fast as space can flow.
when you move a magnet in a room to a new location the field it created at the first location remains stationary to the room and begins to collapse. an entirely new field is produced at the magnet's new location.
magnetic field are fixed in space
1:23 in dance medium like glass or water inside atomic reactor blue light coming from fast moving particle
So if I understand this correct, it's not exactly going faster than light, you're just slowing light down in water so that the Cherenkov radiation can go faster than it. But would this radiation have the same effect of being faster than light in vaccum or is it only in water?
The coolest guy in the world!.
I think light actually wants to travel instantly and is slowed down by the impedance of space on light Tesla observed as gravity
The speed of light varies in relation to the field density of space
The speed of light is the fastest light can go through space which is why the speed of light is also the fastest matter can be moved through space.
in experiments where it appears matter has exceeded the speed of light, space itself has been modified to allow it.
space is cool
How light gains speed?
why would anyone dislike this
What is space and time expanding in ???
What if the light traveling along a path effects the surrounding space thus causing a bias to exist along that path which results in quantum possibilities manifesting along that bias as probabilities or as absolutes.
Think of it as if the approaching photon is preceded by a wave of probability in space... the probability wave reaches the destination before the photon does, the photon being a probability expressed in a bias
Photonic boom
Nothing is impossible, not if you can imagine it. That's what being a scientist is all about!
Maybe …..
Nah
I think : Mechanics( quantum) of light :
The light is the limit(the border,of things,the edge of the matter)
Over the limit are no more things,( there is no matter anymore )
If you want to pass( break) the limit, you should use : not matter anymore, ( not particles anymore)
(Light speed ) It can't be reached with mechanical movement( mechanical particles movement). Mechanical movement( motion) is for things under the light's limit,( things with mass, volume etc... For matter,)light is the "wall"( limit) between matter and " No matter " . Don't waste time to break the light's limit with particles ( like neutrino, tachyon etc..) In this state( situation) you don't have to do with particles , because you want to go over( beyond ) the light ( over the particles) therefore is wasting of time
.
Another parallel thought :
The possible outcome :
C= constant means :
The light doesn't move,( doesn't travel )
The photons doesn't move, therefore ( speed of) light is constant, because they don't move , is just as to turn the page, light just display it( unveils it) , but doesn't move ( doesn't travel)
The book 91:3
This is a new point of view
So you should make another math system, another physical system ( over{ beyond} the matter) , should find new sources .
If you will approach to the limit( to the border), the limit doesn't have sense anymore, if you pass the limit, the things will change, the system doesn't work anymore, a new system will be applied( will be working) , for example : if you want to become smaller and smaller and smaller , until you become a string, that is the edge, there is nothing beyond it, if you want to go beyond it, you should leave the entire system, and take a new( different) system .
It is like to travel with a car, you can travel with the car until in front of you there is the sea, now you should leave the car and take a new vehicle ( a ship) , because the car doesn't work beyond the edge ( beyond the limit ,the land ), there is different environment beyond the land, the car doesn't work there, same is your system, you want to go there but your system doesn't work there, need a new system, new variables, "new tools "... 🦩
Perhaps 2 points of presence are not required to establish a light bridge through space
It might be possible once an azimuth is established to project a limited void through space through which one could travel not instantly but in excess of the speed of light.
moving through space also being outside of the frame of space I don't think you would impact everything in your path unless it presented an impediment to your projected space warp field.
Returning to my earlier comment where I mentioned the size of your craft might not need be relative to the size of your warp field to transit space...
what is a large enough warp bubble (on the inside) for your craft to transit might possibly exist in 3 dimensions much smaller. even small enough to pass through matter.
If the space between the atoms of you and your craft reduce or are compressed by the warp field it's possible
It might also be an unintended danger that you and your craft could be reduced to a single waveform which may or may not manifest or manifest as intended upon leaving hyperspace travel. that could be bad.
Even so... the nature of space itself might naturally cause your straight line (personal reference) to curve (space reference) around matter you could not phase through
Just as light follows the path of least impedance through space.
Every time I bring up the jokes Neil tells, my family members roll their eyes, my friends ask if I heard that joke on the big bang theory, and my coworkers all me a science nerd. I keep telling them anyway.
I've been curious about gravity of late. Two bubbles in water will attract together. Is that gravity? Since no one really knows what gravity is, what if gravity turns out it wasn’t a pull after all? What if it was a push like surface tension in water?????