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(PhysOrg.com) -- Light has its limitations – in this case not velocity, but rather its diffraction limit, which determines the spatial interaction volume in all implementations of optical spectroscopy and is in general also valid for time-resolved studies.

Whole-genome sequencing is helping doctors target care. And as the technology becomes more affordable, new studies are showing just what that looks like. A more promising era of cancer treatment may be near--if not exactly imminent

Empty mailboxes be damned, these elegant and whimsical designs make letter openers as desirable as ever. Paper mail may be going the way of the dodo, but thanks to some major design upgrades, letter openers are here to stay.