heavy oxygen
heavy oxygen
[′hev·ē ′äk·sə·jən] (nuclear physics)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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As a result, the heavy oxygen isotopes in combination with the fossil water created a timeline for occurrences and severity of drought events.
Scientists have found, (https://earthobservatory.nasa.gov/Features/Paleoclimatology_OxygenBalance/) NASA said, there is more of the isotope known as "heavy oxygen," which has two extra neutrons at its center, in seawater when the climate is colder.
The retina's rod cells, which provide night vision, are heavy oxygen consumers.
"We have got it," said Dave proudly, as a heavy oxygen cylinder was placed on my back, "and, as far as I know, it's the top facility in the world.
Inhalation rates were determined using disappearance rates of ingested tracers (deuterium and heavy oxygen) measured in urine samples of free-living people for an aggregate period of over 16 000 days.
The normal crew of a Heinkel 111 was six or seven, the H-22 carried four, one defensive cannon, no heavy oxygen cylinders or unnecessary armour as, shackled to the starboard wing was a VI flying bomb, weighing more than four tons (one ton of HE in the nose).
Study Objectives: To elucidate whether a simple walking aid may improve physical performance in COPD patients with chronic respiratory insufficiency who usually carry their own heavy oxygen canister.
Kirsty has to take a heavy oxygen cylinder wherever she goes and has survived 11 major operations.
Heavy oxygen isotope enrichment in Paleozoic chert nodules of the Chattanooga area is much lower than that determined in Cenozoic chert bearing carbonates elsewhere.
In a charged atmosphere, the five strongest men in Britain battle it out over the course of seven gruelling events, including completing an obstacle course while carrying a yoke bearing heavy oxygen cylinders.
By measuring how much heavy oxygen is present in each growth ring, scientists can determine past fluctuations in water temperature.
Oxygen typically comes in two isotopes, and saltwater contains a significantly higher ratio of heavy oxygen than freshwater does.
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