Sleep is as essential to our health as food and water. It is important to a number of brain functions, including how nerve cells communicate with each other. We sleep for a third of our lives and there are many restorative ...
Mar 14, 2024
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3D eye scans can reveal vital clues about kidney health that could help to track the progression of disease, research suggests. The advance could revolutionize the monitoring of kidney disease, which often progresses without ...
Dec 5, 2023
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Traditional medical imaging works well for people with light skin, but has trouble getting clear pictures from patients with darker skin. A Johns Hopkins University–led team found a way to deliver clear pictures of anyone's ...
Oct 10, 2023
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While age-related brain disorders like Alzheimer's disease often develop slowly across an individual's lifetime, they usually aren't detected until symptoms have already started. With that in mind, teams of biomedical researchers ...
May 25, 2023
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Skoltech researchers have created a solution for quick functional checks of optoacoustic microscopes and tomographs. These are diagnostic devices that use harmless laser irradiation and ultrasound waves instead of X-rays ...
Nov 17, 2022
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Reach out right now and touch anything around you. Whether it was a key on your keyboard, the wood of your desk, or the fur of your dog, you felt it the instant your finger contacted it. Or did you?
Oct 7, 2022
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Researchers have created a photoacoustic imaging endoscope probe that can fit inside a medical needle with an inner diameter of just 0.6 millimeters. Photoacoustic imaging, which combines light and sound to create 3D images, ...
Jul 27, 2022
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A new tool can quickly and reliably identify the presence of Ebola virus in blood samples, according to a study by researchers at Washington University School of Medicine in St. Louis and colleagues at other institutions.
Jun 8, 2022
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A new study—published in Investigative Ophthalmology and Visual Science from University of Alabama at Birmingham researchers—suggests that linking to a fifth dimension for molecules and affected cells could help define ...
Aug 30, 2021
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Grid cells are the brain's GPS system. But do they use brain waves to gather information about speed and direction? Researchers at the University of Oslo resolved the question.
May 14, 2021
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Light is electromagnetic radiation, particularly radiation of a wavelength that is visible to the human eye (about 400–700 nm, or perhaps 380–750 nm.) In physics, the term light sometimes refers to electromagnetic radiation of any wavelength, whether visible or not.
Three primary properties of light are:
Light, which exists in tiny "packets" called photons, exhibits properties of both waves and particles. This property is referred to as the wave–particle duality. The study of light, known as optics, is an important research area in modern physics.
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