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Because if you get really high up you get an amazing view of the horizon and how clearly it is they the earth is spherical (well it isn't a perfect sphere more a Oblate Spheroid but you get the jist)
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[–] Harryyoureawizard ago
Because if you get really high up you get an amazing view of the horizon and how clearly it is they the earth is spherical (well it isn't a perfect sphere more a Oblate Spheroid but you get the jist)
[–] smokratez ago (edited ago)
How high have you been up in a plane then?
edit. Did some googling for high altitude pictures from a plane.
https://www.google.com/imgres?imgurl=https://i.ytimg.com/vi/jDs2T2PgxNM/maxresdefault.jpg&imgrefurl=https://www.youtube.com/watch?v%3DjDs2T2PgxNM&h=1080&w=1440&tbnid=c75PsEn8rMPYMM:&docid=fy2SD0mStLURBM&ei=LYdwVv71LsO9OqarjaAD&tbm=isch&ved=0ahUKEwi-wKjV6N7JAhXDng4KHaZVAzQ4ZBAzCD8oPDA8
https://www.google.com/imgres?imgurl=http://thumbs.dreamstime.com/t/view-airplane-wing-clouds-illuminator-45666030.jpg&imgrefurl=http://www.dreamstime.com/stock-photo-view-airplane-wing-high-altitude-image5974350&h=160&w=240&tbnid=tBv8cck-2pdawM:&docid=toCUj8tAzFgkFM&itg=1&ei=AodwVquDD8WjPoaxkpAP&tbm=isch&ved=0ahUKEwirjMjA6N7JAhXFkQ8KHYaYBPIQMwhMKCUwJQ
https://www.google.com/imgres?imgurl=http://thumbs.dreamstime.com/z/airplane-wing-over-clouds-view-high-altitude-under-blue-sky-50637538.jpg&imgrefurl=http://www.dreamstime.com/stock-photo-airplane-wing-over-clouds-view-high-altitude-under-blue-sky-image50637538&h=957&w=1300&tbnid=e2OK6vdUEhYVyM:&docid=D8ZhRSf-C4lD9M&itg=1&ei=AodwVquDD8WjPoaxkpAP&tbm=isch&ved=0ahUKEwirjMjA6N7JAhXFkQ8KHYaYBPIQMwhJKCIwIg
[–] Harryyoureawizard ago
On each of those pictures you can clearly see the horizon if the world wasn't round how would you explain that