منابع مشابه
Aging and space travel.
T H I S PAPER deals with the matter of aging and its relation to space vehicle crew members undertaking prolonged lunar and trans-lunar space missions. The Mercury Astronaut program imposed an upper age limit of forty as one of the selection criteria for candidates, is The background of training and experience required of the Mercury astronauts automatically set a lower age limit somewhere in t...
متن کاملSpace observations of cold-cloud phase change.
This study examines the vertically resolved cloud measurements from the cloud-aerosol lidar with orthogonal polarization instrument on Aqua satellite from June 2006 through May 2007 to estimate the extent to which the mixed cloud-phase composition can vary according to the ambient temperature, an important concern for the uncertainty in calculating cloud radiative effects. At -20 degrees C, the...
متن کاملThe hazards of space travel.
Exploration is an important survival strategy in evolution. The migration of expansive species depends on exploring their immediate or distant surroundings for new food sources or safe habitats; it can also come as a result of population pressures or environmental changes. The human species has added another reason for exploration, namely curiosity. This intellectual urge to explore the unknown...
متن کاملSpace Travel : A Symposium Introduction
To start off, I would like to show two diagrams (Figs. 1 and 2) showing evidence of man's approach toward space. The first is the time-worn graph of altitude achievement plotted chronologically. Note the break-through produced by the advent of rocket propulsion. The dotted lines represent that portion of the achievements which have been reported at times in various news media but have never bee...
متن کاملGliotransmitters Travel in Time and Space
The identification of the presence of active signaling between astrocytes and neurons in a process termed gliotransmission has caused a paradigm shift in our thinking about brain function. However, we are still in the early days of the conceptualization of how astrocytes influence synapses, neurons, networks, and ultimately behavior. In this Perspective, our goal is to identify emerging princip...
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ژورنال
عنوان ژورنال: Asian Journal of Research and Reviews in Physics
سال: 2021
ISSN: 2582-5992
DOI: 10.9734/ajr2p/2021/v4i230141