Dale's latest activity
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Dale replied to the thread Comments from "Does the gravitational distortion of mass still exist in the past?".I think that you may misunderstand the purpose that @PeterDonis and I (and other mentors) have for requesting references. It is actually... -
Dale replied to the thread B Does the gravitational distortion of mass still exist in the past?.Again, objects are not 3D, they are 4D. And in 4D every object occupies every t from the object’s creation to its destruction.
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Dale replied to the thread B (Electric) current is not a vector quantity.I know you didn’t bring it up, but I don’t think the pressure stuff is relevant. Current is not a vector because of how it behaves...
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Dale reacted to PeterDonis's post in the thread B Does the gravitational distortion of mass still exist in the past? with
Like.
There is no such thing. A massive object doesn't "leave behind points in spacetime". It's a 4-dimensional "world tube" within the 4-d... -
Dale replied to the thread B Does the gravitational distortion of mass still exist in the past?.Our planet is 4 dimensional, not 3 dimensional. In spacetime, the earth is not a 3D sphere with a diameter of ##13 \ 10^6\mathrm{\...
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Dale replied to the thread B How do walk-in freezers not give people hypothermia? [they do].It is absolutely a hazardous environment. If you were to remain inside for an extended time then you would suffer from exposure
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Dale reacted to HansH's post in the thread I Effect of Radiation Pressure on a Moving Object with Like.
at the Dutch forum we summarised it as follows: in the moving mass frame there is no momentum (speed=0) so the mass without momentum is...
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Dale reacted to Ibix's post in the thread I Does destructive interference of an electromagnetic wave create negative energy? with Like.
Does it? How do you know? The same issues arise with all EM waves. The theory says that they all respect conservation of energy but...
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Dale replied to the thread A A Question on the TOV Limit: Continuous Forces vs. a Discrete Trigger.I think that is probably because your picture of quantum mechanics is mistaken. You seem to be envisioning quantum mechanics in a...
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Dale replied to the thread A A Question on the TOV Limit: Continuous Forces vs. a Discrete Trigger.Do you have a reference for that claim? It seems to me like a clearly incorrect claim since the star is not an eigenstate of the...
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Dale reacted to Quarker's post in the thread I Does destructive interference of an electromagnetic wave create negative energy? with
Skeptical.
I’m not going to speculate about something that hasn’t been detected yet. If there is a negative energy associated with areas of... -
Dale reacted to renormalize's post in the thread I Does destructive interference of an electromagnetic wave create negative energy? with Like.
Yet you said earlier: How can that statement be anything other than a personal speculation since you've offered absolutely no outside...
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Dale reacted to Jonathan Scott's post in the thread B Is space stretching or is new space being created? with Like.
Consider the analogy of a 1-dimensional universe shaped like a cone, where the distance along the axis from the point is time and space...
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Dale replied to the thread I Does destructive interference of an electromagnetic wave create negative energy?.Sure, but you were claiming it “would have major implications”. Please provide a professional scientific source that describes said...
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Dale replied to the thread I Does destructive interference of an electromagnetic wave create negative energy?.It is always possible to hypothesize the existence of an effect so small that it cannot be detected. So no experiment can ever rule out...