(HealthDay)—Nerve damage to vocal cords could be the reason why some people recovering from COVID-19 suffer mysterious bouts of shortness of breath for months after shaking off the coronavirus, researchers say.
Nov 3, 2020
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EPFL researchers have discovered that the human brain suppresses the sensory effects of the heartbeat. They believe that this mechanism prevents internal sensations from interfering with the brain's perception of the external ...
May 4, 2016
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(Medical Xpress) -- Researchers at the University of St Andrews found that non-sexual social interactions with men caused a noticeable rise in the temperature of a woman's face, without them even noticing.
May 30, 2012
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Imagine swabbing your nostrils, putting the swab in a device, and getting a read-out on your phone in 15 to 30 minutes that tells you if you are infected with the COVID-19 virus. This has been the vision for a team of scientists ...
Dec 5, 2020
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Engineers at the University of California San Diego have developed a simple, low-cost clip that uses a smartphone's camera and flash to monitor blood pressure at the user's fingertip. The clip works with a custom smartphone ...
May 29, 2023
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How much do you value your memories? Enough to forego that next amazing Instagram pic?
Jun 29, 2018
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(Medical Xpress) -- Do you remember the scenes from your favorite Star Trek episode where Dr. McCoy simple waves his scanner across an injured patient to diagnose the problem? Well, that technology may not be too far from ...
When adult humans and animals severely injure their spinal cord, they become irreversibly paralyzed and are no longer able to move body parts controlled by the section of the spinal cord below their lesion. To counteract ...
The human eye long ago solved a problem common to both digital and film cameras: how to get good contrast in an image while also capturing faint detail.
May 3, 2011
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(Medical Xpress) -- Research to restore sight to the clinically blind has reached a critical stage, with testing underway of the prototype microchips that will power the bionic eye.
Apr 3, 2012
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A camera is a device that records images, either as a still photograph or as moving images known as videos or movies. The term comes from the camera obscura (Latin for "dark chamber"), an early mechanism of projecting images where an entire room functioned as a real-time imaging system; the modern camera evolved from the camera obscura.
Cameras may work with the light of the visible spectrum or with other portions of the electromagnetic spectrum. A camera generally consists of an enclosed hollow with an opening (aperture) at one end for light to enter, and a recording or viewing surface for capturing the light at the other end. A majority of cameras have a lens positioned in front of the camera's opening to gather the incoming light and focus all or part of the image on the recording surface. The diameter of the aperture is often controlled by a diaphragm mechanism, but some cameras have a fixed-size aperture.
A typical still camera takes one photo each time the user presses the shutter button. A typical movie camera continuously takes 24 film frames per second as long as the user holds down the shutter button.
This text uses material from Wikipedia, licensed under CC BY-SA
