Comments by "hongry life" (@hongry-life) on "TED-Ed" channel.

  1. Nothing is bashed, still assumptions are made in this vid before starting to use the math.
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  2. Assumption.
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  3. Assumption.
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  4. Is this cell present in vaccines and if so does it make cancer cells grow or increase the chance to get cancer disease?
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  5. Because... this is imperial English science.
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  6. Gravity has influence on time as I read somewhere. In between bodies in space no gravity because of no mass thus infinite acceleration (?) or no acceleration? Or acceleration of the mass of the object? How do light waves (or particles?) behave in his? - If there is no air resistance, after you let go of an object the only force on it is the gravitational force. - The gravitational force is proportional to the mass of the object. More massive objects have a greater gravitational force. - The acceleration of an object is proportional to the net force on the object and inversely proportional to the mass of the object.
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  7. Why do stars disappear from our view when a certain height from the earth is reached/passed?
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  8. How is a 'light year' measured in relation to 'gravity? @ +TED-Ed I read someone tell things about gravity not existing in the vacuum between bodies in space and I don't understand some things about that. The gravity seems to diminish the further away you are from the body (like earth or the moon) but at the same time then 'time' seems to accelerate (if I understand right). So my question is: what is a 'light year' exactly in distance measuring when the time factor alters at some point and what is that point and how is a 'light year' then measured exactly and how can it be a constant factor?
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