Mix two parts cornstarch and one part water. Swirl your fingers in it slowly and the mixture is a smoothly flowing liquid. Punch it quickly with your fist and you meet a rubbery solid -- so solid you can jump up and down on a vat of it. It turns out that cell membranes behave the same way.
HANOVER, N.H. - Human cells are protected by a largely impenetrable molecular membrane, but researchers have built the first artificial transporter protein that carries individual atoms across membranes, opening the possibility of e... Read Post
Researchers in Spain have discovered that the molecules in cell membranes move in a flowing motion rather than chaotically, as previously thought.... Read Post
There's a well-known experiment in which cornstarch is added to water, turning it into a rather odd substance known as oobleck. It's liquid - but if you hit it hard it turns into a solid. It's even possible to run across it, sinking... Read Post