“Dad, is it really so that mass depends on energy?”, C. Adler, an American physicist was asked by his son.

“No! Or rather - yes. Actually it doesn’t, but don't tell your teacher about it”, C. Adler answered.

The next day the physicist’s son stopped studying physics.

From the article by L.B. Okun, published in the “Advances in Physical Sciences”, vol. 158, issue 3, 1989, pp. 511-530

Saturday, 22 September 2012

Fresh Water Fish: Giant Pangasius

Assalamualaikum..



Fresh Water Fish: Giant Pangasius

1st.. Thanks to someone coz went to Zoo Negara with me.. This is one of the biggest fresh water fish in the world, it called Giant Pangasius. This species can be found in Chao Pyraya and Mekong Basin in Indochina.

 It has declined drastically mainly due to over fishing and it is now considered Critically Endangered. It has a wide, flat, whiskerless head. It has a silver, curved underside and a dark brown back. Its dorsal, pectoral and pelvic fins are dark gray and the first soft ray is extended into a filament. Full-grown adults can reach 3 meters (120 in)  in length and weigh up to 300 kg (660 lb).

Sources: Wikipedia

Posted by at 15:22

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