Please do not use the 2d elastic sheet analogy for 4d spacetime to demonstrate geometrical curvature and motion along geodesic paths. It's just wrong on so many levels! Actual spacetime does not distort/warp into an extra dimension as the 2d sheet is doing in those demonstrations... 😬😵
Thanks for your comment, we love receiving feedback. You're absolutely right that the sheet analogy is not perfect but we feel it's a good starting point for someone to understand how spacetime behaves. As with any analogy in physics, you can only take it so far before it is no longer accurate.
Great interview, thanks everyone! Robyn was a great guest and the new host lineup is awesome!
That one video will be much more popular than the others.
👍
Robyn's beautiful 😊 ...or we can't say it around here?
Please do not use the 2d elastic sheet analogy for 4d spacetime to demonstrate geometrical curvature and motion along geodesic paths. It's just wrong on so many levels! Actual spacetime does not distort/warp into an extra dimension as the 2d sheet is doing in those demonstrations... 😬😵
Thanks for your comment, we love receiving feedback. You're absolutely right that the sheet analogy is not perfect but we feel it's a good starting point for someone to understand how spacetime behaves. As with any analogy in physics, you can only take it so far before it is no longer accurate.