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| Description: The Crab Nebula and Pulsar (b) The insets show the Crab pulsar in its “on” and “off” states. Both its visible flashes and X-ray pulses have identical periods of 0.033 s. Picture Stats: Views: 597 Filesize: 273.75kB Height: 704 Width: 1350 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=18627 |