Silicon wafers sit in online carts for a few dollars, plain p-type disks cut from larger crystal ingots and free of any factory patterns. A short score with a diamond or silicon-carbide scribe splits them into small squares a few millimeters across, then a rinse in isopropyl alcohol and distilled water clears the dust left […]
Living muscle cells, the same kind that pull on bone inside a body, now pull a paper-thin robot through water. Researchers at MIT built a gum-stick-sized aquabot whose two fins beat when light hits them, and they steered it through a simple maze in a petri dish by flashing that light from outside the dish. […]
Living cells refuse to pose. Mitochondria pinch apart and fuse back together in seconds. Microtubules slide, overlap, and rearrange. Ordinary light microscopes smear those events once details fall below roughly 200 nanometers, the natural limit set by how light waves spread. Older super-resolution methods beat that blur by stacking hundreds or thousands of frames and […]