Recent content by salzrah

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    Teaching yourself, is it really possible?

    From my experiences in college so far, most of the learning we do is self-taught anyways. ALL of my science/engineering classes solely require you to understand the book and understand the labs. With a thorough grasp on both, anyone can make an A and learn the subject completely. Therefore, if...
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    Schools Advice for courses for physics in high school.

    If your school allows you to, then you can take AP exams for AP classes you have not taken. Self-learning AP Physics C should not be a problem after you learn AP Physics B with a basic understanding of calculus. AP Statistics is also a course that can be self-learned easily with a good book.
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    Oceans vs Outer Space: Colonization & Resources

    According to Immanuel Kant, people are driven to to different parts of the Earth, even inhospitable ones, due to war. Maybe after a vast global war people will be forced to leave Earth someday?
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    Can I switch from EE to other fields?

    I know computer engineering and EE at my school are greatly intertwined. So much that they had to change the curriculum this year and make computer engineers take more computer science classes so CE and EE didn't end up taking almost the same classes when graduating.
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    Questions relating to time dilation

    No, as we have already agreed on before, the spaceship is moving away from the sun so it will see the eruption at a later time then when the Earth-frame sees it. The second postulate is not violated because we account for length contraction in the spaceship's rest frame. The Earth-frame and...
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    Questions relating to time dilation

    Okay, great example. However, what if the protuberance erupted eight minutes ago in the Earth frame so at the same instant that I see it happen in the Earth frame I jump into the space ship. If that sentence you say is true, then isn't it possible for me to tell the crew of the spaceship that...
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    I want to build a particle accelerator

    IMHO always try to learn the scientific theory behind something completely, inside and out, then try implementing that scientific theory in experiments/projects. Also, the more theory/concepts you learn, the "cooler" more advanced projects you can do. Eventually, you'll reach a point when there...
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    Questions relating to time dilation

    When you say "at that distant point" are you talking about a point with x,y,z and t coordinates? So, to answer my question, are you saying yes it is possible that if I switch into being at rest wrt FoR2, event A has not yet occurred in my frame?
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    Questions relating to time dilation

    1. The origin of light is the POSITION of where the light source originally emits light. 4. I do NOW accept it, just needed the right proof =) Look at post #81 and the end of post #87
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    Questions relating to time dilation

    So you're saying there can be no relative motion between the light origin and another object? Look, the origin of light is the position where the light comes from. Why can you not have motion relative to this origin? It does't matter if it's lightning or a light bulb -- they BOTH have an origin...
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    Questions relating to time dilation

    Okay Erland, I finally understand what you are saying. You can say that the origin of light is at rest with either the ground-frame or the train-frame. But that's not the point. The point is that at least one of the frames will NOT be at rest relative to the origin of light, and the other WILL...
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    Questions relating to time dilation

    First, I'm glad you actually understand my argument and reason that it does make sense [except for afterwards when you disprove it =p]. Second, your explanation seems sound and almost makes complete sense to me. But let me go through it and see if I really understand what you are saying. I...
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    Questions relating to time dilation

    You say, "...while you are at rest while you are traveling at .5c" is that a typo? Did you mean to say something like-- "Now if you had said that it was in the frame in which you are at rest with respect to the light origins that the light bulbs turned on at the same time, both being...
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    Questions relating to time dilation

    Nugatory! Yes, the scorch mark is at rest in the reference frame of the train and lady. BUTTTT the position of the origin of the light is NOTTTTTTTTTTTT. The lady-train are moving relative to the origin of the light-- the scorch marks don't mean anything. ahhhhhhhhh my head's going to explode...
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    Questions relating to time dilation

    To address the arguments in this post, look at the one right above it I posted. Look, I am not saying either frame of reference is right and another is an illusion of motion. I am saying that both lightning flashes occur at the same time in both reference frames, but in one (the reference frame...
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