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originally posted by: Zaphod58
a reply to: mindseye1609
You should see the other one. Not as "oh my God" in the same way, but just as stunning in her own right.
I'm stalking that one until I can get a picture of it.
originally posted by: Aloysius the Gaul
Horizon to horizon in 2 minutes?
Distance to horizon (in nautical miles) is 1.23 times the square root of the altitude in feet.
Example: FL350 being nominally 35000' above a sea level point. It also assumes the earth to be pretty much a perfect sphere.
Square root of 35,000 is 187.08 (plus some digits)
1.23 X 187.08 = 230.11 (plus some digits)
So the distance to the horizon is about 230 nm (370km) from 35000' - in each direction so that's 230 miles a minute, or 13,800 mph - not even hypersonics do that.
At 60,000 feet the horizon is about 301 miles away - so 18,000 mph, and at 90,000 feet it is 369 miles so 22,140mph.
Perhaps I missed something...but any body doing those speeds is not going to go unnoticed anywhere!!
originally posted by: parad0x122
I think you may have misapplied the formulas. That formula is used to calculate the distance to the visible horizon from an observer at h = height of the observer Using that formula as you did would be the same thing as calculating the distance to the visible horizon from on top of a 35,000 ft tall building.
Your maths are a a bit broken :-(