Watching the solar eclipse, safely
Today is your last chance until 2044 to see a total eclipse of the sun in the continental United States.
Apr 8, 2024
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Today is your last chance until 2044 to see a total eclipse of the sun in the continental United States.
Apr 8, 2024
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Do not look directly at the sun during the upcoming solar eclipse without taking essential precautions. That's the message from ophthalmologists at the New York Eye and Ear Infirmary of Mount Sinai (NYEE) as we approach the ...
Mar 13, 2024
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A Raspberry Pi device with a digital camera and a deep learning algorithm can detect facial palsy (FP) with high accuracy, according to a study recently published in BioMedInformatics.
Dec 31, 2023
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Thanks to new technology, a tiny capsule camera can examine your intestines while you get on with your work or walk your dog. Compared with the alternatives, patients experience virtually no discomfort at all.
Dec 21, 2023
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Computer scientists have developed a new diagnostic tool using artificial intelligence and a digital camera to detect facial palsy with 98% accuracy, including the patient's gender and age.
Nov 30, 2023
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Psychologists have suspected that the quantity of brown body fat, which is found in a specific area in the upper neck and can increase body temperature, is linked to the tendency of some people to seek physical contact. A ...
Nov 13, 2023
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Engineers at the University of California San Diego have developed a smartphone attachment that could enable people to screen for a variety of neurological conditions, such as Alzheimer's disease and traumatic brain injury, ...
Oct 24, 2023
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European researchers are striving to improve the technology that could one day help blind people see again.
Aug 22, 2023
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A man in the clinic has had two seizure-like episodes in his lifetime. Selim Benbadis, director of the University of South Florida's epilepsy program, and his resident take a history and complete an exam. They are fairly ...
Jun 20, 2023
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Fetal alcohol syndrome is a lifelong condition caused by exposing an unborn baby to alcohol. It's a pattern of mental, physical and behavioral symptoms seen in some people whose mothers consumed alcohol during pregnancy. ...
Jun 8, 2023
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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