Robert Williams Wood was an American physicist and inventor. He is often cited as being a pivotal contributor to the field of optics and a pioneer of infrared and ultraviolet photography. Wood's patents and theoretical work inform modern understanding of the nature and physics of ultraviolet radiation, and made possible the myriad uses of UV-fluorescence which became popular after World War I. He published many articles on spectroscopy, phosphorescence, diffraction, and ultraviolet light.
Black-body radiation is the thermal electromagnetic radiation within or surrounding a body in thermodynamic equilibrium with its environment, emitted by a black body. It has a specific spectrum of wavelengths, inversely related to intensity that depend only on the body's temperature, which is assumed for the sake of calculations and theory to be uniform and constant.
Vitello is a lunar impact crater that lies along the southern edge of the small Mare Humorum, in the southwest part of the Moon's near side. It was named after 13th century Polish theologian and physicist Vitello. It lies just to the east of the lava-flooded crater Lee. To the northeast along the edge of the lunar mare is the Rupes Kelvin, an irregular fault line.
A fibre-optic gyroscope (FOG) senses changes in orientation using the Sagnac effect, thus performing the function of a mechanical gyroscope. However its principle of operation is instead based on the interference of light which has passed through a coil of optical fibre, which can be as long as 5 km.
The following events occurred in December 1964:
Hanwood is a large village in Shropshire, England.
Arscott is a small hamlet in Shropshire, England. It is near to Plealey, Shorthill and Annscroft and within the civil parish of Pontesbury.
A total lunar eclipse took place on December 19, 1964. A shallow total eclipse saw the Moon in relative darkness for 58 minutes and 54 seconds. The Moon was 17% of its diameter into the Earth's umbral shadow, and should have been significantly darkened. The partial eclipse lasted for 3 hours and 16 minutes in total. The eclipse afforded astrophysicist J. M. Saari the opportunity to make infrared pyrometric scans of the lunar surface with improved equipment, following up on Richard W. Shorthill's discovery of "hot spots" in the Tycho crater during the March 13, 1960 eclipse.
A total lunar eclipse took place on March 13, 1960. The moon passed through the center of the Earth's shadow.
The following events occurred in March 1960:
The following events occurred in September 1960:
Grace Academy of Creative Learning, Inc. is a private school located in Erlanger, Kentucky. It is a non-denomational Christian school located inside of Erlanger Baptist Church. It has approximately 40 students from Kindergarten to 12th grade.
High Pavement is a street in Nottingham, England. It is one of the earliest streets in the city, and most of its buildings are listed.
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