Engineering
How Do Sailboats Sail Against the Wind?
A sailboat reaches an upwind destination by combining aerodynamic and hydrodynamic forces. Follow the sail, keel and zigzag route that make it possible.
Nov 8, 2026 • 7 min readTHE NEXT FRONTIER
Engineering
Explore how engineers turn physical principles into working systems, balancing materials, measurements, design constraints and testing.
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How Do Elevators Work?
Behind the doors, an elevator coordinates forces, position sensing and controlled motion. Follow a trip from the call button to a level landing.
Nov 8, 2026 • 6 min readRead the discovery →LATEST
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Engineering
How Do Submarines Rise and Sink?
Submarines dive by opening vents so seawater floods main ballast tanks, increasing the vessel’s average density and reducing buoyancy. They surface by forcing that…
Oct 10, 2026 • 3 min read
Engineering
How Do Airplanes Stay in the Air?
An airplane stays aloft when motion through the air and the shape and angle of its wings create enough aerodynamic lift to balance its…
Sep 25, 2026 • 4 min readWORTH KNOWING
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Engineering
How Do Sailboats Sail Against the Wind?
A sailboat reaches an upwind destination by combining aerodynamic and hydrodynamic forces. Follow the sail, keel and zigzag route that make it possible.
Nov 8, 2026 • 7 min read
Engineering
How Do Submarines Rise and Sink?
Submarines dive by opening vents so seawater floods main ballast tanks, increasing the vessel’s average density and reducing buoyancy. They surface by forcing that…
Oct 10, 2026 • 3 min read
Engineering
How Do Airplanes Stay in the Air?
An airplane stays aloft when motion through the air and the shape and angle of its wings create enough aerodynamic lift to balance its…
Sep 25, 2026 • 4 min read