3 ms·
> The horizon is ~3 miles away. Interesting, then, that standing on a beach it is possible to see ships 12mi out to sea. I think your distance-to-horizon sourc
by Maursault 5y ago
> The horizon is ~3 miles away.
Interesting, then, that standing on a beach it is possible to see ships 12mi out to sea. I think your distance-to-horizon source may be inaccurate, but it does not affect the validity of your excellent point.
- ceejayoz 5y agoIt's not that interesting, it's just math. A little height goes a long way. https://en.wikipedia.org/wiki/Horizon#Examples https://en.wikipedia.org/wiki/Horizon#Examples The island simply wasn't high enough to be observed from Tonga. We've got video of the shockwave hitting Tonga - https://www.1news.co.nz/2022/01/15/tonga-video-captures-enormity-of-shockwave-boom-after-eruption/ https://www.1news.co.nz/2022/01/15/tonga-video-captures-enor... - but video of the eruption itself would've surfaced by now if available.
- Maursault 5y agoYes, of course, I acknowledged your point while demonstrating that the horizon is considerably more than 3mi away.
- ceejayoz 5y ago"The horizon is approximately three miles away for an average-height non-blind human at sea level looking out to sea and assuming there are no low clouds, fog, or rogue waves involved" is a lot longer to type out, and probably unnecessary.