Рыбы-попугаи – одни из крупнейших коралловых рыб. Они настолько неразборчивы в пище, что вместе с водорослями едят кораллы и камни. Частички твёрдой пищи, проходя через пищевую систему этих рыб, превращаются в мелкий песок, из которого потом формируются тропические пляжи, столь привлекательные для туристов.
Oh, gee! That was a comment for the previous NASA video, not for this one. Well, for this video I would say that I like it just because I have been to many of tropical islands and I really love them!
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newnick
Here is a real anecdote. There was a beginning of the space era and Yuri Gagarin had recently been to the space. So, NASA found out that usual pen didn't properly work in the space due to zero-gravity and , moreover, it became a problem number one in the list, so they started to invent the special pen that would work in the space. Eventually, they've got a result after a decade of researchers and twenty billions dollars were spend. They invented a pen that worked in the space as well as in the depth under water and in the absolute zero conditions, so it could write on whatever it would be. Russians used a pencil. That is the real sample of what useless that research was. Now, due to this video, we've got a new one! I mean, wow, they saw some planets somewhere on the edge of the Universe! And what? Is that a real Mc Coy? Do we have practical value of it? Really? Hell no!
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polyakova.lina.2015
Enlightening and very interesting. Thanks.
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