Space Flight and Lunar Dust Hypertension
نویسندگان
چکیده
منابع مشابه
The lunar dust environment
Each year the Moon is bombarded by about 10 kg of interplanetary micrometeoroids of cometary and asteroidal origin. Most of these projectiles range from 10 nm to about 1 mm in size and impact the Moon at 10–72 km/s speed. They excavate lunar soil about 1000 times their own mass. These impacts leave a crater record on the surface from which the micrometeoroid size distribution has been deciphere...
متن کاملDry separation of respirable lunar dust: Providing samples for the lunar airborne dust toxicity advisory group
In order to study the toxicity of lunar dust, the respirable size fraction of lunar soil needed to be separated with an apparatus that possesses the following capabilities: no use of liquid; fully recoverable sample; and use of only small sample quantities (o1 gm). We report the design of a simple apparatus that meets these requirements and implements an inertial-impaction mechanism established...
متن کاملOcular toxicity of authentic lunar dust
BACKGROUND Dust exposure is a well-known occupational hazard for terrestrial workers and astronauts alike and will continue to be a concern as humankind pursues exploration and habitation of objects beyond Earth. Humankind's limited exploration experience with the Apollo Program indicates that exposure to dust will be unavoidable. Therefore, NASA must assess potential toxicity and recommend app...
متن کاملScattering Properties of Lunar Dust Analogs
A number of space missions are planned to explore the lunar exosphere which may contain a small population of dust particles. The objective of this paper is to present preliminary results from scattering experiments on a suspension of lunar simulants to support one such mission. The intensity of the light scattered from a lunar simulant is measured with a commercial version of the spectrometer ...
متن کاملPhysicochemical properties of respirable-size lunar dust
We separated the respirable dust and other size fractions from Apollo 14 bulk sample 14003,96 in a dry nitrogen environment. While our toxicology team performed in vivo and in vitro experiments with the respirable fraction, we studied the size distribution and shape, chemistry, mineralogy, spectroscopy, iron content and magnetic resonance of various size fractions. These represent the finest-gr...
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ژورنال
عنوان ژورنال: Journal of Hypertension and Management
سال: 2016
ISSN: 2474-3690
DOI: 10.23937/2474-3690/1510011