mathemachristian

@mathemachristian@lemmy.ml

• ⁨Comment⁩ on ⁨When you're the last one on the bus and instantly start living like this⁩ ⁨⁨1⁩ ⁨week⁩ ago⁩:

  No it’s not voluntary if public transit gets dismantled look at the US. Running buses half-empty is also more efficient by your calculation if all those people were driving a car. That’s by your calculation 2 ton/person road wear and not whatever it was for busses.

  Cars need to go.

• ⁨Comment⁩ on ⁨When you're the last one on the bus and instantly start living like this⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  I feel like people should be paying their taxes even if they own a car

• ⁨Comment⁩ on ⁨3D Print some math.⁩ ⁨⁨2⁩ ⁨weeks⁩ ago⁩:

  Manifolds such as these are actually defined by the maps used from a linear space. Two manifolds (i.e. two sets of maps) are considered the same (isomorphic) if the maps of one set can be “morphed” into the other and vice versa.

  The flashlight demonstrates how one map is morphed into another.

  That’s kind of part of a larger point actually: There is no 3d vector space in reality. It’s a made up construct used to make sense of the world around us.