HIGH SCHOOL ASTRONOMY
نویسندگان
چکیده
منابع مشابه
High-Energy Neutrino Astronomy
Kilometer-scale neutrino detectors such as IceCube are discovery instruments covering nuclear and particle physics, cosmology and astronomy. Examples of their multidisciplinary missions include the search for the particle nature of dark matter and for additional small dimensions of space. In the end, their conceptual design is very much anchored to the observational fact that Nature accelerates...
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Neutrinos are very promising probes for high energy astrophysics. Indeed, many indications suggest that cosmic objects where acceleration of charged particles takes place, e.g. GRBs and AGNs, are the sources of the detected UHECRs. Accelerated hadrons, interacting with ambient gas or radiation, can produce HE neutrinos. Contrarywise to charged particles and TeV gamma rays, neutrinos can reach t...
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With Baikal and AMANDA detectors UHE neutrino astronomy entered its first stage, which will reach the decisive level with 1 km detector. Simultaneously, the first steps are made in building the detectors searching for superGZK neutrinos, i.e. those with energies above the GZK cutoff, EGZK ∼ 5 × 10 19 eV. Radio-telescopes, such as RICE, GLUE and FORTE are already searching for radio signal from ...
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\Ve describe an alternative design for t he 4-quadrant phase mask coronagraph described recently by Rouan et al. (2000) . Based on the same principle. i.e. producing a very efficient nulling by mutually destructive interferences of the coherent light from the main source. our mask realises the " phase shift using some properties of ZOGs (Zeroth Order Gratings) and according to an original schem...
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Teaching university physics through the internet is not new, but a new course providing the same service for secondary school students is the first of its kind in Hong Kong. Taking advantage of the fast and affordable broadband internet in the region, some university courses have been converted to a cyber curriculum suitable for secondary school students. In the spring semester of 2002 an astro...
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ژورنال
عنوان ژورنال: School Science and Mathematics
سال: 1901
ISSN: 0036-6803
DOI: 10.1111/j.1949-8594.1901.tb00003.x