I'm melting
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I'm melting
It's actually a thing. It's called "earth sandwich" and one interesting fact about it is that it's not that simple to make it. Here is map, where orange spots represents opposite sides of earth with dry land.
http://www.asamnet.de/~altendom/stuf...ch_options.jpg
But that's the planisphere applied to a cylinder, not on a sphere. You need to join the opposite side of Earth by going through its center, so technically it's not corresponding to the Earth sandwich theory :p
I'm sure such a map, for a sphere, exists somewhere.
The North American X-15 is the worlds fastest manned aircraft with the world record of 4,520 miles per hour (7,274 km/h), or Mach 6.72.
Now if the X-15 had an unlimited supply of fuel and was cruising at an altitude of 19.3 miles (31.1 km) at which its top speed could be achieved, how long would it take the aircraft to travel around the Earth once?
Around the Equator, with:
d1 (Earth Mean Radius) = 6.371.000 meters
d2 (d1 + X-15 elevation) = 6.402.100 meters
P1 (Earth Circumference) = 40.075.017 meters
P2 (Trajectory Perimeter) = 2πd2 = 40.225.580 meters
40.225.580 รท 7.274.000 = 5.53 hours
... or ~5 hours 31 minutes 41 seconds
^ Wow, I have to give you some respect for that :clap
I can establish you must be smarter than me at physics and what not (I'm more of a biologist) xD
It's just basic mathematics and logic :p
The only formula you need to now by heart is 2 x Pi_x, the rest is pure deduction ;)
Love f***s you dry from behind :g
Sorry, I am in a bad mood