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Press Start Quiz to fly the globe and highlight a country in mint no side drawer will open.
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Select two points arc appears on the separate globe above.
The shortest path between two points on a sphere is a great circle arc, not a straight line on a flat map. The Haversine formula calculates this distance using latitude and longitude accurate to ~0.5% for Earth's curvature. Used by aviation, shipping, and GPS for route planning. Convert distance units →
Jet airliners cruise at ~850–900 km/h (Mach 0.78–0.85) at 30,000–42,000 ft. True airspeed differs from ground speed due to jet streams tailwinds can add 150+ km/h, headwinds subtract. Flight time varies by route, not just distance. Speed converter →
Each 15° of longitude crossed equals one hour time difference. Long-haul flights (e.g., LAX→SYD) cross 8–12 zones arrival local time often beats departure by calendar day. Use UTC offsets for scheduling; dst rules differ by country. Time zone converter →
Commercial aviation emits ~115–250 g CO₂ per passenger-km (short-haul higher per km due to climb/descent). A round-trip LAX↔LHR ≈ 1.6 t CO₂ per economy seat comparable to yearly per-capita emissions in some nations. Direct flights reduce total vs connections. Energy converter →
From 35,000 ft (10.6 km), the horizon is ~370 km away you can see city lights, coastlines, and weather systems far beyond ground view. Formula: √(2 × Earth radius × altitude). At ISS altitude (400 km), horizon reaches ~2,300 km. Distance converter →