A new microscopy method that ditches lenses altogether could create the highest-resolution images ever seen. The system reconstructs an image from the electron waves scattered by a sample, and has no fundamental experimental limits imposed by constraints like blurry glass or wavelengths of visible light. It can even be used to image live cells without harming them.
A clump of bone marrow cells are the fastest cells in the world, moving at a glacial pace of 5.2 microns per minute across a petri dish. They beat a line of breast cells by a hair’s breadth — OK, well less than that, because the entire race track was about a hair’s breadth long.
A new microscope combines a normal optical scope with a see-through microsphere superlens, beating the diffraction limit of light and shattering the limits of optical microscopes.
With the new method, there is theoretically no limit on how small an object researchers will be able to see. It could potentially see inside human cells and examine live viruses for the first time.
A microscopic, see-through water flea is the most complex creature ever studied, genomically speaking. Daphnia pulex is the first crustacean to ever have its genome sequenced, and it turns out it has about 31,000 genes — 25 percent more than we humans.
Of all the invertebrate genomes sequenced so far, the water flea shares the most with us, and scientists hope these shared genes can help them understand how humans respond to environmental threats.
A 10-pound rat wouldn’t normally evoke feelings of appreciation, but perhaps it should — apparently it can save lives by sniffing out tuberculosis. Rat disease recognition is much more accurate than microscopes, researchers say.