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28February 2022

10 Crazy Uses for Completely Frictionless Surfaces

By |February 28th, 2022|Categories: Tuesday Tidbits|0 Comments

Concepts like the “frictionless surface” enabled Newton to lay the groundwork for modern physics. He may never have imagined that his ideal could actually be achieved, but now, thanks to a group of tribologists (scientists who study interacting surfaces in relative motion), the prospect of eliminating friction between two interacting surfaces has come to fruition.

24February 2022

The Bhopal Disaster

By |February 24th, 2022|Categories: Friday Famous Failures|3 Comments

Just after midnight on December 3, 1984, chemical gas began leaking from a pesticide plant in Bhopal, India, in the state of Madhya Pradesh. The gas was toxic and heavier than air, and it crept along the ground and easily infiltrated the shacks and huts of the crowded shantytown surrounding the plant.

14February 2022

The February Ethical Dilemma: Permit or not

By |February 14th, 2022|Categories: Ethical Dilemma|10 Comments

Engineer Greg, an environmental engineer employed by the state environmental protection division, is ordered to draw up a construction permit for the construction of a power plant at a manufacturing facility. He is told by a superior to move expeditiously on the permit...

31January 2022

How Ultrasonic Welding Works

By |January 31st, 2022|Categories: Tuesday Tidbits|6 Comments

Traditionally, materials have been bonded together by fasteners such as nails, screws or thread, which are appropriate for metals, wood, fabrics and plastics. For many plastics, glues have been used. Glue forms a chemical bond between itself and the surface of the plastic material to be conjoined.