Artist Fabian Oefner captures these colorful portraits of fluid instability by dripping acrylic paints onto a metal rod, which is connected to a drill. When the drill is switched on, paint is flung away from the rod, creating these snapshots of centripetal force and surface tension. Note how droplets gather at the ends of the spiral arms like in a Plateau-Rayleigh or a rimming instability. For more, check out Oefner’s webpage, which includes a video showing how the images are made, or his previously featured work, “Millefiori”. (Photo credit: F. Oefner; submitted by Stephen D.)
Before a cell divides, it must carefully check that all of its systems are normal and operational before initiating division. Cancers are often riddled with mistakes in this machinery, allowing a cell to divide uncontrollably without first ensuring everything is “good to go.” In this Ashbya gossypii fungus, the CLN3 protein (orange, with nuclei in blue) helps initiate the commitment to cell division given that the cell correctly passes its initial checkpoint.
At first, I thought they were glitches, or errors in the algorithm, but looking closer I realized the situation was actually more interesting — these images are not glitches.
Google Earth is a database disguised as a photographic representation. These uncanny images focus our attention on that process itself, and the network of algorithms, computers, storage systems, automated cameras, maps, pilots, engineers, photographers, surveyors and map-makers that generate them.
fill a tray with water. blow, fan, stir, dab, and drag paint or colored ink across its surface. put a sheet of washi paper on top to stain it with the floating art.
though called “turkish” paper marbling by europeans, this design technique was developed in east asia, central asia, and the islamic world. it is an important part of turkic, tajik, indian, and other asian and middle eastern cultures.