The wave did follow a curvature.
As the story goes.
And the timings of the wave going back over the places it had already been observed were perfectly in time for the circumference of the globe given the known speed of sound.
A number of people tried to take the opportunity to determine whether the world were a shape other than a globe using the readings they were taking, and all of them only managed to explain their readings with the globe model. No other shape would explain their observations.
A globe model makes absolutely no sense where this is concerned.
You're trying to put forward a pressure wave just going all around a supposed globe and back to the point of origin, 7 times.
The blast should've dissipated into the atmosphere not followed a supposed path around a globe.
It really makes no sense.
If you buy into it then fine. I don't and I promise you I won't be buying into any of it no matter how much you try to champion it through whatever channels you did.
It might, if Krakatoa were at the very centre (north pole) of a circular "cell world". But even then, you would be able to tell by the difference in the rhythm of the readings in different places.
It's as simple as this. A wave is a wave, whether it's a atmospheric or water or whatever.
It has it's epicentre/energy/force application and spreads out after exploding and imploding (filling the void).
If there's no barrier then the pressure will dissipate.
On a ball this pressure would dissipate up and away from the epicentre, not around it.
An explosion pushes away atmosphere by force. It creates an unequal pressure which has to be equalised and this is where the pressure comes right back after initial explosion, to fill the void.
It's the only way the observations DID make sense.
If the world were any other shape but a spheroid, the observations would have been very different.
Fair enough if you go with that. I don't accept it at all.