منابع مشابه
A Telemetry Beacon and Digital Camera Controller System for Experimental High Altitude Balloon Flights
A simple and inexpensive flight payload system for experimental high altitude balloon flights is described. The payload includes a simple 2m FM/CW telemetry beacon transmitter, an automated ID'er/controller which can provide up to 16 different CW telemetry status messages and also control an inexpensive digital camera for collecting still images at predetermined intervals during the balloon fli...
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NASA’s Expansive Reach Each year, NASA produces Spin off, a report outlining its con tributions to the US (see www. sti.nasa.gov/tto). Many derivative technologies in medicine and per sonal comfort have emerged from NASA missions, positively affect ing our lives. However, beneficial technologies have also emerged in computing and information processing over the more than 60 years since the ...
متن کاملMethods and results of one year of balloon flights with biological specimens.
I N R E C E N T years Dr. Herman J. Schaefer 3 has shown that heavy primary cosmic ray particles can be expected to produce ionization tracks as long as several millimeters in living tissue. These tracks reach central ionization intensities of thousands of roentgens, and significant radial radiation to the order of cell diameters. Since no particle can be accelerated artificially to compare dir...
متن کاملNASA CoNtributioNS to it
D eep space presents numerous hazards and harsh conditions for remote exploration missions, which must often operate autonomously without intervention from Earth. To increase the survivability of the remote missions, NASA is exploiting principles and techniques that help such systems become more resilient through selfmanagement and automatic adaptation. By adhering to the principles of autonomi...
متن کامل30TH INTERNATIONAL COSMIC RAY CONFERENCE The TRACER Project: Instrument Concept, Balloon Flights, and Analysis Proce- dures
Accurate measurements of the composition and energy spectra of cosmic rays beyond the TeV energy region have been an experimental challenge for years. TRACER (“Transition Radiation Array for Cosmic Energetic Radiation”), is currently the largest cosmic-ray detector for direct measurements, and has been developed for long-duration balloon flights. The instrument is unconventional in that it uses...
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ژورنال
عنوان ژورنال: Nature
سال: 1997
ISSN: 0028-0836,1476-4687
DOI: 10.1038/37185