In the olden days — a mere 20 years ago — people talked about hard colloidal particles and soft vesicles or micelles, which covered all sizes from the micrometre to the nanometre regime. Now we talk ...

A photon enters a tiny disk of layered crystal no wider than a human hair. It circles the rim, bouncing along atomically ...

From the boiling of water to the strength of spider silk, intermolecular forces quietly govern the behavior of matter. These subtle attractions between molecules decide when substances melt, boil, ...

U.S. Air Force pilots ejecting from fighter jets in combat is rare, but the risk rises when forces are in major air campaigns against adversaries. Here are some examples: In 2011, an F-15E Strike ...

Chemistry involves the fundamental interplay between the structures and properties of molecules. Notably, subtle changes in ...

A neglected force produced by neutrinos and other particles helps atomic physics measurements align with predictions of the ...

Cells constantly probe their environments, searching for physical cues that guide their behavior. And yet a cell's response ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

The bacterial flagellar motor is finally understood after 50 years. In its workings, columnist Natalie Wolchover finds the ...

Prefer Newsweek on Google to see more of our trusted coverage when you search. Italy has denied U.S. jets en route to the Middle East to carry out strikes in Iran access to an air base on its southern ...

Mechanical properties are physical properties that a material exhibits upon the application of forces. Examples of mechanical properties are the modulus of elasticity, tensile strength, elongation, ...