What human-made structures can be seen from space?
Can anything crafted by humans be viewed with the naked eye from space, or would astronauts need to use binoculars?
from Space https://ift.tt/kU0bpMQ
from Space https://ift.tt/kU0bpMQ
New method to detect and visualize sperm cells recovered from forensic evidence
One of the most valuable forms of forensic evidence in cases of male-perpetrated sexual assault is the presence of semen, either in the form of stains left behind on items or on swabs collected from victims after an offense. To confirm that semen is present, suspected stains are examined under a microscope to see if any sperm cells are visible. from Phys.org - latest science and technology news stories https://ift.tt/2XBwacB
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