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After its introduction in the 1940s, live-cell imaging rapidly became popular using phase-contrast microscopy. [11] The phase-contrast microscope was popularized through a series of time-lapse movies (see video), recorded using a photographic film camera. [12] Its inventor, Frits Zernike, was awarded the Nobel Prize in 1953. [13]
A simple microscope uses a lens or set of lenses to enlarge an object through angular magnification alone, giving the viewer an erect enlarged virtual image. [1] [2] The use of a single convex lens or groups of lenses are found in simple magnification devices such as the magnifying glass, loupes, and eyepieces for telescopes and microscopes.
Antonie van Leeuwenhoek (1632–1723). The field of microscopy (optical microscopy) dates back to at least the 17th-century.Earlier microscopes, single lens magnifying glasses with limited magnification, date at least as far back as the wide spread use of lenses in eyeglasses in the 13th century [2] but more advanced compound microscopes first appeared in Europe around 1620 [3] [4] The ...
The highest-energy X-rays that penetrate the hohlraum can be visualized using an X-ray microscope such as here, where X-radiation is represented in orange/red. In the 1950s Sterling Newberry produced a shadow X-ray microscope, which placed the specimen between the source and a target plate, this became the basis for the first commercial X-ray ...
The channel was launched as an "original channel", which meant that YouTube funded the channel. [3] [4] The show's initial grant was projected to expire in 2014, and in response, on September 12, 2013, SciShow joined the viewer-funding site Subbable, created in part by Green. [5] [6] In 2014, the channel landed a national advertisement deal ...
This is opposed to a macrograph or photomacrograph, an image which is also taken on a microscope but is only slightly magnified, usually less than 10 times. Micrography is the practice or art of using microscopes to make photographs. A photographic micrograph is a photomicrograph, and one taken with an electron microscope is an electron micrograph.
The resolution of a microscope is defined as the minimum separation needed between two objects under examination in order for the microscope to discern them as separate objects. This minimum distance is labelled δ. If two objects are separated by a distance shorter than δ, then they will appear as a single object in the microscope.
Moiré Effect. Structured illumination microscopy (SIM) is a method of super-resolution microscopy which is performed by acquiring multiple images of the same sample under different patterns of illumination, then computationally combining these images to achieve a single reconstruction with up to 2x improvement over the diffraction limited lateral resolution.
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