That you don’t know what you might be referring to
However, by using any high-powered zoom device, let’s imagine eg Nikon’s P900 coolpix cam, if you find yourself indeed at sea-level directly on the coast, and/or when you position the cam a few legs above the drinking water during the shore ( a height of best 2-feet above sea-level ) a€“ after a watercraft has gone away MORE THAN 3 miles, like 10-miles, utilizing the zoom on the camera possible draw the motorboat back into see, like seeing it contact the water at the bottom of watercraft. This particular test might finished dozens-to-hundreds of that time period over just the finally five years plus its with comprehensive lack of knowledge that people like Kevin claim that truly a€?due to planet’s curve you simply can’t see more than 3 kilometers at this heighta€? a€“ making use of the unaided eyes, real, however with the AIDED eyes the same particular digital camera I pointed out can zoom away enough to create isles being over 50 kilometers away come to be noticeable.