Nansen bottle

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Science and technology

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What Wikipedia says

A Nansen bottle is a device for obtaining samples of water at a specific depth. It was originally designed in 1894 by Fridtjof Nansen and further developed by Shale Niskin in 1966 and is more commonly known as a Niskin bottle.

Excerpt from the Wikipedia article “Nansen bottle”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Wusel007, CC BY-SA 3.0, via Wikimedia Commons.