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Jack Ryan

What is the scientific proof that nothing can travel faster than the speed of light?

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    • By SciTechPress
      ... Yes.. I know... both...
      BUT ... have we made any progress in our understanding beyond that?

       
    • Guest
      By Guest
      Let me attempt to blow your mind: “Now” travels at the speed of light.
      When the light turns green, I don't concern myself with the fact that the light actually turned green a nanosecond earlier than I saw it. As far as the distances we're used to, “now” might just as well be universal.
      On interstellar distances, you might expect that the lag start mattering. Except it really doesn't. Maybe Sirius isn't there anymore. Maybe it went supernova five years ago, and the shockwave is riding towards us as you read, and it will hit us in another three years. There's no way we'd know. We look up and see the old faithful Sirius sitting right where it's always been. And we can measure its gravitational influence on us and neighboring stars. There is no knowing it's actually gone, and that's because it actually isn't. To someone in the neighborhood of Sirius, the star is no more, but, to us, it still exist. “Existence” travels at the speed of light.
      If the sun was spirited away by a species of prankster kardashev 3 aliens, it would keep “being there” for 8 minutes as far as we'd be concerned.

      And those 10 billion light years away stars we see through our telescopes, they are there. Because we can see them.
      - Julien Boyer
    • By Bible Speaks
      Origin of the Universe:
      Gen. 1:1: “In the beginning God created the heavens and the earth.”                                
      Astronomer Robert Jastrow wrote: “Now we see how the astronomical evidence leads to a biblical view of the origin of the world. The details differ, but the essential elements in the astronomical and biblical accounts of Genesis are the same: the chain of events leading to man commenced suddenly and sharply at a definite moment in time, in a flash of light and energy.”—God and the Astronomers (New York, 1978), p. 14.                      
      JW.ORG

    • By SciTechPress
      Light always travels at the speed of light. It never increases or decreases its speed. (Technically, this is only true when the light is in vacuum, but the air in a room where the light is turned on is sufficiently close to a vacuum.)

      You're thinking about light as a classical particle, which indeed has to start from rest if it wants to move. Instead, think of light as a vibration of the electromagnetic field.

      There is a simple analogy for this - without any quantum mechanics or relativity, just classical mechanics.

      Consider a string attached to a wall on one side and held by you on the other side. If you vibrate the string on your side, the vibration will propagate to the other side at a fixed speed that depends on the material from which the string is made and on the tension of the string.

      The propagation speed of the vibration of the string does not start from zero, nor does it increase or decrease at any time. It is always constant.

      Similarly, light is a "vibration" of the electromagnetic field. This vibration always propagates at a constant speed c.
      - Barak Shoshany, Graduate Student at Perimeter Institute for Theoretical Physics
      Listen to my commentary on this
    • By SciTechPress
      This is a tough one to answer since in an earlier post we debunked the infinite mass old theory.
      Any ideas?
    • By admin
      "The notion of mass "increasing" with velocity is an outdated one. Under current definitions of "mass", mass doesn't increase at all with velocity; instead, it is an intrinsic property of the object in question, which is the same in all reference frames.
      ... If you're inside your rocket ship traveling at 99.99% of the speed of light relative to Earth, you wouldn't be able to tell you were moving at all without looking out the windows (or at your instruments, etc.) Specifically, you would not somehow have more trouble moving because of your increased inertia, and you would not see time slow down for yourself. It's only observers on Earth who would see your time slow down and your inertia increase."
      The magnitudes of most of the famous effects of special relativity (time dilation, length contraction, increase in inertia) are determined by the "gamma factor",

      γ=11−v2/c2√γ=11−v2/c2.

      This is where Allan Steinhardt's answer comes from. It's the factor by which inertia increases, and it's the factor by which we used to say your mass increased, before "mass" was redefined. (Again, this is all according to an observer who sees you moving at 99.99% of the speed of light relative to them; according to you, everything about you is "normal".)" Source
       
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    • Just as the WT knows how to work the global market by investing their money in hedge funds, they know how to manipulate a developing mind with persuasion techniques.  I perceive the downplay of higher education as a safeguard from losing members.  While the organization warns these young ones of Satan’s worldly traps when pursuing higher education, in reality it appears to me that it’s all about keeping JWs captive to the organization’s “empty philosophy”.  Col 2:8  Knowing how the young mind develops sheds light on the org's use of persistent warnings not to pursue higher education.  “Developmental Tasks and Attributes of Late Adolescence/Young Adulthood (Ages 18-24 years) http://www.amchp.org/programsandtopics/AdolescentHealth/projects/Documents/SAHRC AYADevelopment LateAdolescentYoungAdulthood.pdf This is a time of life when very little is normative. It is a period of frequent change and exploration that covers many aspects of their life: home, family, work, school, resources, and role. Develop and apply abstract thinking skills Adolescents experience significant changes in their capacity to think. In changing from concrete to abstract thought they are increasingly able to understand and grapple with abstract ideas, think about possibilities, think ahead, think about thinking, and “put themselves in another person’s shoes.” In general, this changes their ability to think about themselves, others and the world around them. This is a gradual process that spans adolescence and young adulthood. For example, early in the process youth are limited in their ability to hold more than one point of view – understanding something from one perspective but not another. ·        Capacity for abstract thought becomes established; can think abstractly and hypothetically; can discern the underlying principles and apply them to new situations; and can think about the future, considering many possibilities and logical outcomes of possible events. ·       Able to hold and manipulate clusters of abstract ideas and create systems for organizing abstract thoughts. ·       Greater ability to consider different points of view at the same time can result in increased empathy and concern for others, and new interest in societal issues for many. It also allows youth to better value the diversity of people (and their perspectives) and appreciate that there may be many right answers to a problem. Adopt A Personal Value System Adolescents develop a more complex understanding of moral behavior and underlying principles of justice. They question and assess beliefs from childhood and restructure these beliefs into a personal ideology (e.g. more personally meaningful values, religious views, and belief systems to guide decisions and behavior). ·        Decisions and values are less influenced by peers. ·       Able to see multiple viewpoints, value the diversity of people and perspectives and appreciate that there can be many right answers to a problem. ·        Identify values and viewpoints that work for oneself while respecting viewpoints/values of others I would imagine there is a high risk of young JWs entering a college or university after high school, with the same age group, and going through the same mental development stages ...leaving the Watchtower altogether.  
    • John 17:14-16 The comments in the study Bible on John 17:15 say: "Jehovah...could even separate his people physically from the rest of the world and place them in a a safe and peaceful environment. However, regarding his disciples, Jesus prayed to his heavenly Father: "I request you, not to take them out of the world, but to watch over them because of the wicked one." Jehovah has chosen not to take us "out of the world." Rather, it is his will that we live among the general population of this world in order to proclaim his message of hope and comfort to others. (Rom. 10:13-15) But, as Jesus implied in his prayer, by living in this world, we are exposed to "the wicked one." Disobedient mankind and wicked spirit forces cause much pain and anguish, and Christians are not immune to distress." 1 Peter 5:9 So while we recognize we have to live in a world under Satan's control, it doesn't mean we should go out of our way to expose ourselves to potentially dangerous influences and bad association. There are of course necessary things we must do to survive and provide for our families - such as employment, which as you correctly pointed out, can mean rubbing shoulders with worldly people and attitudes whatever level of education we choose. But even on that, we are selective so as to minimize our exposure to potentially harmful influences. It may include being selective as to what type of work we are willing to accept, or whom we work with/for. Many caring parents know they can't completely eliminate bad influences at school for instance (since kids have to have some type of schooling and it is beneficial), but they may choose to be selective as to whom they allow their kids to spend their extra time with. So living in the world, we recognize there are certain things we must do whether we like it or not. But that doesn't mean we shouldn't exercise caution and be selective as to what we choose to involve ourselves in. I could rationalize that I need a job to support myself and my family - a legitimate and necessary need,  but would I choose to work for the mafia to do so? No, I would be selective and cautious.  I agree with you. I often have the same problem on both phone and tablet. Fortunately I've recently discovered that we can edit and make corrections. I wish I had known that earlier before "auto-correct" ran roughshod over my posts.  As for my level of education, I provide as little information as possible to identify me. As a "whistleblower" on some things, there would be an opportunity for "blowback" from men in authority who have something to hide. I don't even post what country I'm from. So when I have written that at times there are men in authority who act as wickedly as people in the world and hide behind their authority, I know exactly what I'm talking about. That's why I don't buy into the "Jesus is in full control of everything..." stuff, because I know some of the stuff that goes on is about as unChristlike as you can get. He doesn't cause/control it just because he allows it for a time. I also question some of the decisions men (not Jesus) have made when I am in possession of all the facts - especially when removal or disfellowshipping has as it's objective to silence whistleblowers who expose their corruption. I have never been DF'd, but I know if they thought I was spilling the beens on them, that's exactly what would happen. So I don't mention any names either that would tip them off. Just letting people know that you can still maintain your faith and relationship with God despite the evil that (some) men do - and get away with for now.  Sorry if this rant is off topic.
    • Perhaps it can be as you said. And perhaps this can be true with many other similar "stories".   What I see as important in this "story", is fine moral message and inspirational, motivating injection that in this materialistic and superficial everyday life offers a spiritual upgrade.... said with different order of words. 
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    • The story has also been told that it was a "black boy" who offered him the newspaper for free: https://mylife-chapter.blogspot.com/2017/08/who-is-richer-than-bill-gates.html When my wife was a school principal, teachers were always putting up posters about, for example, the "Ten Things Bill Gates Says about School" or "What Bill Gates Said Were the Most Important Things in Life" etc. He may have told a story like this, but usually people create such stories so that their own moral lesson comes across with more authority.  
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