Where is more bacteria - in the ocean or in city sewers? Detailed answer

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Where is more bacteria - in the ocean or in city sewers? Detailed answer

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Where is more bacteria - in the ocean or in city sewers?

According to the English microbiologist Thomas Curtis, a milliliter of ocean water contains an average of 160 species of bacteria, a gram of soil contains from 6400 to 38 species, and a milliliter of sewage from city sewers, oddly enough, only about 000 species.

Author: Kondrashov A.P.

Random interesting fact from the Great Encyclopedia:

Was Columbus the discoverer of America?

When we say "opened", we give this word a special meaning. We believe that people, representatives of another civilization, visited some region that was unknown to it. As we know, the traveler often suddenly discovers that in the place that he "discovered" there already exists a civilization, some kind of population lives. Why not say that it was the population who discovered this place?

From the point of view of Western civilization, we say that Columbus discovered America. This is so because after his discovery of the New World, this region began to be settled and settled by representatives of the Old World. But even 500 years before the birth of Columbus, the ancient Scandinavians also made their "discovery". Sailing westward, they discovered Iceland, then Greenland, and finally the Americas.

Do you know that the Chinese reported even earlier voyages of Chinese sailors who discovered that part of America that is now known as California? And the inhabitants of the South Sea Islands even now in their songs remember the great people of the past, who sailed to South America long before the white man reached it.

As far as we know, there was a period of discovery thousands of years ago. And no doubt there was a time of discovery long before Columbus. Perhaps it should be said that neither Columbus nor the Scandinavians discovered America long before him. After all, long before the appearance of the white man, these lands were already inhabited by the Indians.

And, perhaps, it should be said that it was they who went on a journey of discovery. They are believed to have originated from Asia, although we do not know when or how they made such a journey. They may have reached America within a few hundred years using different routes. Perhaps they sent their scouts ahead in search of sea and land routes. These scouts were explorers and travelers, and perhaps they were the ones who discovered America!

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HGST Ultrastar C10K1800 Hard Drives 18.07.2014

HGST (formerly Hitachi Global Storage Technologies, now a subsidiary of Western Digital) has announced the availability of Ultrastar C10K1800 hard drives. According to the manufacturer, these are the fastest and most capacious hard drives with a spindle speed of 10000 rpm.

2,5" drives are suitable for applications where high performance and reliability are required.

The new drives are equipped with a 12 Gb SAS interface. The Ultrastar C10K1800 has a capacity of up to 1,8TB, which is 50% more than similar drives of the previous generation. The HGST Ultrastar C10K1800 is two and a half times faster than its predecessors in random access write speed, and by 23% in sequential access speed.

At the same time, power consumption is reduced (savings up to 7% compared to previous generation drives).

The advantages of the Ultrastar C10K1800 also include the functions of Instant Secure Erase (ISE) and Self-Encrypting Drives (SED). According to the manufacturer, the mean time between failures reaches 2 million hours.

Drives are covered by a limited five-year warranty.

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