The biosphere 2 project and its potential role in assisting space exploration
Abstract Space Biospheres Ventures is developing technologies for its Biosphere 2 project — a 3 acre materially closed ecological system with human habitat, intensive agriculture and five wilderness biomes — and other life-support testbeds for space habitats in microgravity and the Moon and Mars, as well as for ecological research pertinent to the biosphere of Earth. These include soil bed reactors for air purification and biomass production; aquatic waste processing systems; real-time analytic systems; and computer systems of control and management. A space policy pursuing joint Earth and ‘space biospheres’ objectives and implications is discussed.
Soil and Compost Filters of Malodorant Gases
Removing low concentrations of pollutant gases from air streams is difficult and expensive.1,2 Removal techniques include water scrubbing (with and without permanganate, hypochlorite, or lime), burning, and sorption by activated charcoal. The shortcomings of these techniques are that they require fuel, maintenance, water, high capital costs, they pollute the wash water, and/or some concentrate only, rather than remove the offender.
The Tsadik and His Soul’s Sparks: From Kabbalah to Hasidism
The present study shows the continuity between the Safedian Kabbalistic view of the relations between the sparks of a certain soul, and the Hasidic theory, that was conceived of as innovated by and characteristic of 18th century Hasidism, as to the responsibility of the Tsadik for the sparks that belongs to his soul. In the two literatures, the rescue of a spark of one's soul is related to the beautiful captive woman that is conceived of as an externalization of an inner dimension of the righteous person, immersed in a shell.