Popcorn
发表于 2025-3-28 16:16:04
hould bear in mind the dangers posed by one to our very existence. Ironically, without supernovae and their ability to coalesce, as forming stars, from hydrogen, and ultimately produce heavy elements when they explode, life would not exist at all. Those heavy elements that formed the earth and human
Glossy
发表于 2025-3-28 20:03:25
Hamish McDougallhould bear in mind the dangers posed by one to our very existence. Ironically, without supernovae and their ability to coalesce, as forming stars, from hydrogen, and ultimately produce heavy elements when they explode, life would not exist at all. Those heavy elements that formed the earth and human
FRET
发表于 2025-3-28 23:35:12
Hamish McDougall If the spectrum is dispersed wide enough for useful resolution to be captured, it will be very faint, but a long CCD exposure can obviously help compensate for this. Even the simplest prism or grating (net curtains can be used!) will split the light of our own sun into its constituent colors and sh
发现
发表于 2025-3-29 06:16:29
Hamish McDougallso the first attempt to hold an international conference in the Salento, the southernmost region of Apulia, in whose capital, Lecce, the newly founded Faculty of Sciences of the University of Lecce is located. The program of the conference included the results and techniques of Supernova surveys, ph