Mxsmanic wrote in
:

writes:

Up, then down, until it hits what someone so nicely described as 'the
hard edge of the sky". Is your assertion that is orbital?

Absolutely. The orbit doesn't seem like an orbit because it
intersects the planet's surface, but if the Earth were a dimensionless
point with the same mass, the track would be an ellipsoidal orbit
around that point.

Ballistic tracks at the surface are the very tips of very eccentric
orbits that intersect the Earth.




Uh, nope.


Bertie