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e. In heraldry, a bend is a band or strap running from the upper dexter (the bearer's right side and the viewer's left) corner of the shield to the lower sinister (the bearer's left side, and the viewer's right). Authorities differ as to how much of the field it should cover, ranging from one-fifth (if shown between other charges) up to one ...
Photometric system. In astronomy, a photometric system is a set of well-defined passbands (or optical filters ), with a known sensitivity to incident radiation. The sensitivity usually depends on the optical system, detectors and filters used. For each photometric system a set of primary standard stars is provided.
The blue water environment extends from the outer edge of the green-water zone to the deep ocean of the world. A blue-water navy can project its nation's power throughout the world. The blue water policy was a long-standing political philosophy in Britain in the 18th century, which sought to advance British power through use of the Royal Navy ...
A field with narrow piles throughout, issuing from either the dexter or sinister side of the shield, is barry pily . When the field is patterned with an even number of vertical stripes (pallets), the field is described as paly. When the field is patterned with a series of diagonal stripes (bendlets), running from top-left to bottom-right, the ...
An aureole of human head surround the central heads. Flames emitting from the figure, illustrating its blazing nature as described by Arjuna. Three Vishvarupa icons from Shamalaji, Gujarat dated sixth century have three visible animal heads and eight arms, with a band of beings emanating from the upper part of the deity forming an aureole ...
A blue-water navy is a maritime force capable of operating globally, essentially across the deep waters of open oceans. [1] While definitions of what actually constitutes such a force vary, there is a requirement for the ability to exercise sea control at long range. The term "blue-water navy" is a maritime geographical term in contrast with ...
The visible spectrum is the band of the electromagnetic spectrum that is visible to the human eye. Electromagnetic radiation in this range of wavelengths is called visible light (or simply light). The optical spectrum is sometimes considered to be the same as the visible spectrum, but some authors define the term more broadly, to include the ...
Band head. In spectroscopy a band head is the abrupt edge of a spectroscopic band. When a band is described as degrading to the violet, it means that for wavelengths above the band head wavelength, the spectrum is dark as the band comes to a sudden stop (just above/after the head), and below the wavelength the brightness of the band weakens ...