منابع مشابه
Variations in the sky brightness during a lunar eclipse
A total lunar eclipse is conjectured to have influence on the physical conditions of an environmental area, particularly on the brightness of the sky. The phenomenon might also be relevant on weather parameters change on Earth, such as temperature, humidity and pressure, though a straightforward correlation is not easy to establish. This work mainly aims at measuring the brightness of the sky a...
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Laser ranging measurements during the total lunar eclipse on 2010 December 21 verify previously suspected thermal lensing in the retroreflectors left on the lunar surface by the Apollo astronauts. Signal levels during the eclipse far exceeded those historically seen at full moon, and varied over an order of magnitude as the eclipse progressed. These variations can be understood via a straightfo...
متن کاملLunar eclipse theory revisited Scattered sunlight in both the quiescent and the volcanically perturbed atmosphere
The residual brightness of the shadowed Moon during a lunar eclipse is attributed to unscattered sunlight rays refracted in the Earth’s atmosphere. The classical theory of lunar eclipses is built on the premise that the sunlight scattered by the gases and particles in the atmosphere contributes negligibly to the brightness of the eclipsed Moon. The current work revisits the lunar eclipse theory...
متن کاملMultiple confluent reddish nodules
A 48-year-old fisherman from Amazonas (north of Brazil) developed a small papule on the anterior left leg after a traumatic injury with a piece of wood 20 years ago. Over the course of years, multiple large, confluent, reddish to brownish nodules with eventual ulceration came into being on the left leg and extended to the left thigh. There was a solitary, domed-shaped nodule on the right arm (F...
متن کاملTurning Eclipse Against Itself: Improving the Quality of Eclipse Plugins
While many researchers have used Eclipse as a platform for developing software engineering and program analysis tools, Eclipse itself presents an excellent subject for analysis and study. Eclipse represents one of the biggest Java projects ever created. While surprisingly robust, Eclipse still suffers from serious bugs that lead to crashes and resource exhaustion. Eclipse is a collaborative dev...
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ژورنال
عنوان ژورنال: The Physics Teacher
سال: 2019
ISSN: 0031-921X
DOI: 10.1119/1.5135780