hierarchy
发表于 2025-3-21 17:04:29
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Spinal-Tap
发表于 2025-3-21 20:14:05
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使增至最大
发表于 2025-3-22 04:12:23
Reminiscences of the Early Nineteen-Twenties,lear recollection of meeting Oort refers to an event later that year. Oort, at that time assistant at the Kapteyn Astronomical Laboratory in Groningen, had been invited by Frank Schlesinger to come to the Yale Observatory, where he would be assistant over the interval 1922–1924. Oort’s westward voya
障碍
发表于 2025-3-22 08:03:22
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群居男女
发表于 2025-3-22 09:33:48
Early Galactic Radio Astronomy at Kootwijk,ce, to start my work for the Netherlands Foundation for Radio Astronomy. Some months before I had finished my studies in physical engineering at the Delft Technical University and this was my first job. I was to continue the work started in 1948 by Mr. Hoo towards the discovery of the 21.2 cm line o
侧面左右
发表于 2025-3-22 16:00:59
Oort and his Large Radiotelescope, of the birth pangs of the Westerbork Synthesis Radio Telescope, but at the end of 1963 how did it look ? Some might have described it as the time of the frustration of the hopes and plans of Jan Oort for the Benelux Cross Antenna; for that telescope was never built.
Offset
发表于 2025-3-22 17:25:44
,Ten Years of Discovery with Oort’s Synthesis Radio Telescope,any topics: surveys of faint radio sources and measurements of their angular sizes, spectra and polarization; determination of the structure and polarization of extended 3C sources; mapping the continuum radiation from “normal” galaxies to determine the dependence on type and the concentration to th
我没有命令
发表于 2025-3-23 01:09:59
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inconceivable
发表于 2025-3-23 02:47:52
The Evolution of Ideas on the Crab Nebula, Rosse, who observed it in the middle of the last century with his six-foot telescope in Ireland. Extensive studies by Lampland (1921a) at Flagstaff rather convincingly revealed changes in the Nebula - although the difficulty in observations of this type is put in evidence by his finding (Lampland 1
遗忘
发表于 2025-3-23 09:17:06
,Oort’s Work Reflected in Current Studies of Galactic CO,hese areas included the dynamical influence of the unseen mass, the enigsatic high-velocity clouds, the structure and influence of the galactic nucleus, and the form of spiral structure in the Galaxy. Each of these areas of research flourishes now in ways which could not have been foreseen. That the