Периодические дроби
Some creatures prefer to spend their lives deep under water

В начале было слово.
10 days

Duration of the expedition
3 islands

Adams, Waiheke, and Secretary Island
5 boats

On the research mission
В начале было Слово, и Слово было у Бога, и Слово было Бог.

Beginnings
The history of Marine Biology
Давайте рассмотрим дробь 88/7.
Как мы можем перевести ее в десятичную?

88/7=12,57142857142857142

Сколько бы мы не делили дальше, с равной периодичностью мы будем получать числа 571428.

Какое название вы ба дали таким дробям?
Периодические.

Когда мы остановимся в делении этого числа?
На самом деле, никогда. Мы можем делать это сколь угодно долго. Бесконечно.


Бесконечность - в своей сути это отсутствие ограничений на выполнение операции.
Если нет никаких причин тому, чтобы прекратить деление, то результат этого деления

Поэтому такие дроби называются бесконечными, периодическими дробями.

Если поделить 3 на 14, то зацикливание произойдет не сразу:
3/14 = 0,2(142857).

Если повторяющаяся группа цифр (период) расположена непосредственно после запятой, то такую десятичную дробь называют чисто периодической; в противном случае говорят, что дробь имеет предпериод и называют ее смешанной периодической дробью.

Marine biology is the scientific study of organisms in the ocean or other marine or brackish bodies of water. Given that in biology many phyla, families and genera have some species that live in the sea and others that live on land, marine biology classifies species based on the environment rather than on taxonomy. Marine biology differs from marine ecology as marine ecology is focused on how organisms interact with each other and the environment, while biology is the study of the organisms themselves.
THE QUESTION
Can the ocean save our planet?
Just over a month later, on February 24, 1831, the expedition sighted bare mountain tops through the ocean ice. Biscoe correctly surmised that they were part of a continent and named the area Enderby Land in honor of his patrons. On February 28, a headland was spotted, which Biscoe named Cape Ann; the mountain atop the headland would later be named Mount Biscoe.

Biscoe kept the expedition in the area while he began to chart the coastline, but after a month his and his crews' health were deteriorating. The expedition set sail toward Australia, reaching Hobart, Tasmania in May, but not before two crew members had died from scurvy.
Biscoe correctly surmised that they were part of a continent and named the area Enderby Land in honor of his patrons.
Marine biology is the scientific study of organisms in the ocean or other marine or brackish bodies of water. Given that in biology many phyla, families and genera have some species that live in the sea and others that live on land, marine biology classifies species based on the environment rather than on taxonomy. Marine biology differs from marine ecology as marine ecology is focused on how organisms interact with each other and the environment, while biology is the study of the organisms themselves.
Credits

Editor-in-Chief — Matt Porter

Editor — Kate Brown

Photographer — Johan Rose

Producer — Amanda Lee

Special thanks to the sailors

and the captain

Made on
Tilda