Could Rough Be the New Smooth?

Smoother surfaces usually mean less resistance—but not always. A recent Tohoku University study found that microscopic distributed roughness reduced measured drag on a streamlined wind-tunnel model under specific transitional-flow conditions, offering engineers a fascinating reminder that even reliable design rules can have carefully engineered exceptions.

By |2026-07-06T10:01:00-06:00July 6th, 2026|Tuesday Tidbits|0 Comments

The Imperial Sugar Refinery Explosions: When Combustible Dust Became a Catastrophic Fuel

NASA’s Mars Climate Orbiter was lost during Mars orbit insertion after a unit-conversion mismatch between ground software systems caused navigation errors. The failure remains one of engineering’s most important lessons in interface verification, systems communication, and unit consistency.

By |2026-06-23T10:50:18-06:00June 25th, 2026|Friday Famous Failures|3 Comments

The Mars Climate Orbiter Failure: When a Unit Conversion Destroyed a Spacecraft

NASA’s Mars Climate Orbiter was lost during Mars orbit insertion after a unit-conversion mismatch between ground software systems caused navigation errors. The failure remains one of engineering’s most important lessons in interface verification, systems communication, and unit consistency.

By |2026-05-22T18:53:50-06:00May 27th, 2026|Friday Famous Failures|1 Comment