Origins: Distant Starlight in a Young Universe

2017-06-08に共有
Join Origins host Donn Chapman as he welcomes astronomer and astrophysicist, Dr. Jason Lisle for, Distant Starlight in a Young Universe. Here on Earth we see light from galaxies billions of light years away. Based on this it seems that Creation would be billions of years old. However, Dr. Lisle presents a compelling argument to the contrary. Taking into account the speed of light and the passage of time in outer space the evidence may surprise you.

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コメント (21)
  • When the Lord created the space components and the earth’s components, He created them as He wanted them ie. mature trees, mature Adam, mature animals, starlight in place, sunshine in place, etc. He didn’t do it to deceive us, He just did what He, as a sovereign God chose to do, not having to answer to anybody.
  • @budt525
    To hear some people talk it is like mankind has figured out 99% of what is to be known.Mankind knows perhaps 1 billionth of 1% of what is to be known. This is probably a very very generous figure. With that in mind perhaps it would be prudent to keep an open mind.
  • I think the biggest problem with lisle's theory is that even if it was true best case scenario it would only explain half of the star in the night sky the other half of the night sky would be traveling towards us at half of C and we would just see darkness Lisle does a subtle shift from the one way speed of light to the belief that Light exits a source instantaneously and then travels back half the speed this isn't a convention it's a hypothesis because you can synchronizes the two clock by sending a signal from the center (see 13:33 in the video ) out wards if lisle was right we should be able to synchronizes these two clock of course if the one way speed of light is different based on different direction you can't do this but you need light to be traveling from all direction instantly to solve the distant star light problem so Lisle is doing a bait and switch
  • Hello Dr Lisle. Did Roemer's method measure the one directional speed of light? And do we learn anything from interferometer measurements like Michelson Morley? It seeme like fringe interference would be different if light had radically different speeds in both directions. Thanks for the thought provoking presentation!
  • @dan4091
    An anisotropic medium is one where, say light, travels at different speeds in different directions. That’s not what you’re proposing here because the earth doesn’t just send and receive light in one direction but from all spherical directions. So the anisotropy you envision would be any direction heading to or away from a certain point in the universe (earth), which means the speed of light isn’t directional at all since light going away from the “top” of the earth would going in the same direction as light from a distant star arriving at the “bottom” of the earth, yet you would assign these lights going the same direction vastly different speeds. When it comes to the early days of creation, it’s pretty clear forces were at work far beyond our comprehension, and the rules by which the universe would be governed were themselves being implemented, so I wouldn’t artificially constrain any of the creation activities by them. Once day 6 was complete, only at that time was creation finished and under the rules we know today. The idea that God created distant stars but no provision for them to be immediately seen is of course nonsensical. Personally I wouldn’t rule light in transit out, for the same reason I wouldn’t rule out God creating trees with tree rings.
  • this is more a curiosity question than a dig at either side: Does the universe expanding affect the distance light has to travel at all?
  • @Hydroverse
    You don't need to use clocks. Just use the double slit experiment, but shine the laser parallel to the plane of the slits. Like water waves, if the speed changes, then it'll affect the fringe pattern to reveal any changes. I personally haven't seen any.
  • The anisotropic convention in the distant starlight problem seems totally counterintuitive because it took just over 2 seconds for the radio response to arrive during the lunar landing communication, where the one-way time dilation was verified afterward. For the one-way lightspeed to be instantaneous, it would've been the case that the lunar communication dilation would've been much shorter, since the radio signal wasn't operating under reflection, but rather a two one-way system. Moreover, this is compounded by the fact that the speed of one-way illuminations has been directly observed from distant stellar activity to be consistent with the established fundamentals of lightspeed within a vacuum...
  • WOW! I don't have a pool but my head is swimming. Guess I'll have to sign up for a class in this when I am transferred to heaven. I like the word transfer rather than die. Verrry interesting even if I don't understand all of it.😘🎈
  • @kurtdejgaard
    There's a couple of fallacies, here. Waves obey the speed of light and that goes for light and for gravitational waves. Gravitational waves we measure, are unidirectional - they come from a source and we can measure them with measuring devises on different locations on Earth. And from that and the time difference between the signals as they arrive to those measuring devises, we can conclude that gravitational waves move unidirectionally at the speed of light. But the bigger problem lies elsewhere: Supernova 1987A. We can actually calculate how long it takes for a star of a given size to burn through it's nuclear fuel, collapse and go supernova. Supernova 1987A was a type II Supernova. And for a star of the size that gives rise to type II Supernovae (between 8 and 50 times the size of our sun) it takes in the range of 10s of millions of years to burn through their hydrogen. Then, at least a million years to burn through their helium, and so forth. I.e. a 6000 year old universe is not remotely old enough to give rise to any supernovae, at all! The absolute earliest superbnova we should be able to observe on Earth (which would not be a type II supernova), would not be observable for another 50,000 years in a 6000 year old universe. Thirdly (but now it becomes nerdy) the speed of light is actually the speed of causality. So a universe can't be causally connected over distances the exceed the speed limit of causality. Thus, if you believe that the universe was created by God and is causally connected, that way, then the age of the universe - the time since its creation - cannot be shorter than then the distance it spans, in lightyears.
  • Could you measure the one way speed of light using entangled photons? Where light could some how effect the distant entangled photon and then observe the entanled photon with/near you?
  • I appreciate the effort, but I'm skeptical. Even with unsynchronized clocks, wouldn't we get ballpark measurements that indicate speed greater in one direction than the other? Also, which direction is instantaneous when not directed toward the earth? What switches it as we reorient a light source?
  • @danjbundrick
    I've heard that it can be different going left to right, but not that it's different in a manner which radiates from the earth
  • I believe he right. When we observe the light from a star, it is not the light being created back in time, it is the light in the present. So it is how the star look like in real-time.
  • @velvetvideo
    with regard to the mirror experiment...why not have a detector next to the mirror and a detector next to the source of the light and measure the differential after the light is initiated?
  • Just wondering, what if you synchronized both clocks whilst physically together, and move them both away from each other by the same distance and speed, so that they both remain in sync with each other?
  • @jtslev
    What about frequencies and wavelengths? Aren't they connected to the isotropic (Einstein) convention?