Manned space travel as a cultural mission

2006 ◽  
Vol 4 (4) ◽  
pp. 239-252 ◽  
Author(s):  
Carl Friedrich Gethmann
Keyword(s):  
2020 ◽  
Vol 324 ◽  
pp. 02001
Author(s):  
Leon P. M. Brendel ◽  
James E. Braun ◽  
Eckhard A. Groll

The literature shows five decades of interest in vapor compression cooling for spacecraft, while only very few conclusions can be drawn because of either non-systematic approaches or sparsely documented experiments. In contrast, the demand for high COP refrigerators and freezers has increased with the emerging plans of long duration manned space travel. Research is needed exploiting all available testing approaches to investigate two-phase cycles in microgravity environments. This paper presents relevant testing possibilities with their characteristics and outlines open questions regarding vapor compression cycles in space. Beneficial experiments are derived from open questions and matched with available testing methods to prescribe a path towards reliable and efficient refrigeration systems in microgravity.


2020 ◽  
Vol 1 (1) ◽  
Author(s):  
William Elke ◽  
Maia Heineck ◽  
Jonah Meffert ◽  
Ellie Monaghan ◽  
Jason Palesse

For long-duration, manned, space exploration missions to be feasible, farming techniques in space must become reliable and fruitful. The NASA Project Veggie team currently runs experiments on the International Space Station (ISS) in order to better understand how plants react to a microgravity environment. Current watering strategies on the ISS involve manual watering of all plants by the crewmembers. This poses a problem because watering plants must be scheduled into the crewmembers’ days which means less time to work, etc. The objective of Team International Space Salads (ISSa) was to create a device and prove that it could function in microgravity without electricity to autonomously water the plants in order to allow for schedule flexibility of the ISS crewmembers and to lay the foundation for watering systems for deep-space travel. The final device did not function fully as planned, however, the plant growing, surface tension experiments, and the device collectively progressed the multi-year project to a state where successive teams would have the knowledge and tools necessary to create a fully functioning device.


Transfers ◽  
2015 ◽  
Vol 5 (1) ◽  
pp. 1-4
Author(s):  
Heike Weber ◽  
Gijs Mom

The final months of 2014 have seen many critical events in respect to mobility: Apple introduced its Apple Watch, a cyborg technology that adds a novel, substantially corporeal layer to our “always on” connectedness—what Sherry Turkle has termed the “tethered self.”1 Moreover, it is said to revolutionize mobile paying systems, and it might finally implement mobile body monitoring techniques into daily life.2 Ebola is terrorizing Africa and frightening the world; its outbreak and spread is based on human mobility, and researchers are calling for better control and quantifi cation of human mobility in the affected regions to contain the disease.3 Even its initial spread from animals to humans may have had its origin in human transgressions beyond traditional habitats, by intruding into insular bush regions and using the local fruit bats as food. Due to global mobility patterns, the viral passenger switched transport modes, from animal to airplane. On the other hand, private space fl ight suff ered two serious setbacks in just one week when the Antares rocket of Orbital Sciences, with supplies for the International Space Station and satellites on board, exploded, and shortly after, SpaceShipTwo crashed over the Mojave Desert. Th ese catastrophic failures ignited wide media discussion on the challenges, dangers, and signifi cance of space mobility, its ongoing commercialization and privatization, and, in particular, plans for future manned space travel for “tourists.”4


Author(s):  
Yu. E. Moskalenko ◽  
T. I. Kravchenko ◽  
Yu. V. Novozhilova

Introduction. Slow fl uctuations in the volume and pressure of liquids in the cranial cavity have been known for a long time and have been studied for more than 100 years. However, their quantitative indicators and their practical signifi cance remain unclear until now due to the diffi culties of research. Nevertheless, it was found that they were connected with the brain activity, which made it possible to use them as one of the physiological indicators in studying the problems of manned space fl ights. Goal of research — to study the possibility of using spectral analysis of slow fl uctuations of the volume of liquids inside the cranium in order to realize the quantitative assessment of their indicators with the use of modern microelectronics and computer technology.Materials and methods. In order to solve this problem we created a complex, in which rheoencephalograph-RG-01 («Mizar») was used as a converter-modulator of physiological signals into electrical oscillations. The device was connected with the ADC (Firm «ADIstrument»), Its software allows to calculate the spectrogram with a sampling rate of 128 kHz. Studies were conducted on volunteers of younger, middle and older age groups. The respiratory rate and the electrocardiography were registered together with the rheoencephalography. Electrodes were fi xed on the volonteers′ fronto-mastoid area.Results. Slow fl uctuations the cranium representan independent physiological phenomenon. The most considerable and valuable were fl uctuations in 0,1–0,3 Hz. It was found that current frequency of 100 or 200 kHz and frequency for quantization of 80–100 kHz was optimal for performing their spectrograms. The structure of such diagram consists of 4–7 peaks with amplitude of 0,4–0,7 units compared with REG pulse amplitude. They depend on age and are characterized by hemispheric asymmetry. Spectral diagrams of slow fl ucation inside cranium are representing inpendent physiological phenomenon. These fl uctuations are not connected by common origin, with heart activity and respiration. They are connected by nature with brain activity and PRM.Conclusion. Can be an informative method for diagnostic and assessment of general status of osteopathic patients well as for the assessment of mechanisms of action of some osteopathic techniques.


2018 ◽  
Vol 8 (2) ◽  
pp. 166-182
Author(s):  
Maria Poggi Johnson

In his trilogy of space travel novels, published between 1938 and 1945, C.S. Lewis strikingly anticipates, and incarnates in imaginative form, the insights and concerns central to the modern discipline of ecotheology. The moral and spiritual battle that forms the plot of the novels is enacted and informed by the relationship between humans and the natural environment, Rebellion against, and alienation from, the Creator inevitably manifests in a violent and alienated attitude to creation, which is seen as something to be mastered and exploited. Lives and cultures in harmony with the divine will, on the other hand, are expressed in relationships of care and respect for the environment. The imaginative premise of the Trilogy is that of ecotheology; that the human relationships with God, neighbour, and earth and are deeply and inextricably intertwined.


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