Materials & Modern Engineering

Low-emissivity glass coatings reduce long-wave heat radiation while allowing much visible light through. See why window design still matters.

An ablative heat shield sacrifices outer material during atmospheric entry to carry heat away. Learn why controlled loss protects what is beneath.

A phase-change material absorbs heat as it melts and releases heat as it solidifies. See why temperature selection matters.

Bridges expand and contract with temperature. Expansion joints and bearings accommodate movement; some designs transfer it into flexible supports.

Kevlar is a lightweight para-aramid fiber used where tensile strength matters. Learn why a fiber must be engineered into a structure.

Laminated glass bonds panes around a plastic interlayer. See why fragments often remain attached after impact.

Zinc coating protects steel as a barrier and by corroding preferentially near a scratch. Learn what makes hot-dip galvanizing different.

Rapid cooling leaves tempered glass surfaces in compression. See how that improves bending strength and affects the break pattern.

A sealed heat pipe uses evaporation, condensation and capillary return to move heat. Learn why it needs the right working fluid and temperature range.

Lithium ions move between electrodes while electrons travel through an external circuit. See what charging and discharging change.