Some forces are called contact forces because they require objects to touch. One is tension force, found in stretched wires. Another is the force found in a spring. And last are resistive forces: ...

Check out this video demo: So, that is just plain water. If I am careful, I can make that thin aluminum disk stay on the surface of the water. This is not the same as floating in Archimedes principle.

Measuring the tension forces at specific sites in living cells is technically challenging. Now, a fluorescent biosensor protein can be used to characterize dynamic local changes in tension in ...

Atwood's machine is the name of a device that looks like this: Also known as "two masses on a pulley". Surprisingly, this simple device comes up a lot in intro physics texts. It also brings up some ...

The tension of cell membranes (which are made of lipid bilayers) plays an important role in a host of biological processes, such as cell motility, endocytosis and cell division, but measuring this ...

The goal of mechanobiology is to develop a mechanical description of cells and their parts. Platelet clotting, for example, is an important biological process that can only be fully understood if a ...

Physics, especially the part about forces and motion, often feels like a maze of confusing concepts and formulas. If you’ve ever stared at a problem about an object moving or a force acting and ...

When webs of continuous paper, wire, cloth, or plastic are manufactured, the material is typically pulled off a roll, processed, and rewound in unwind, intermediate, and rewind zones. Knowing the ...