About 183 million years ago, volcanic activity in modern South Africa unleashed an estimated 20,500 gigatons of carbon dioxide (CO2) into the ocean–atmosphere system over a period of 300 to 500 thousand years. Known as ...
Earth Sciences
Jun 25, 2024
1
158
Nobel laureate Otto Hahn is credited with the discovery of nuclear fission. Fission is one of the most important discoveries of the 20th century, yet Hahn considered something else to be his best scientific work.
General Physics
May 24, 2022
0
38
Uranium is not always the same: depending on whether this chemical element is released by the civil nuclear industry or as fallout from nuclear weapon tests, the ratio of the two anthropogenic, i.e. man-made, uranium isotopes ...
Materials Science
Mar 9, 2020
0
179
Scientists at the National Research Nuclear University MEPhI (Russia) have presented an effective scheme for re-enrichment of reprocessed fuel uranium.
Analytical Chemistry
Feb 27, 2020
0
6
According to some experts, nuclear power holds great promise for meeting the world's growing energy demands without generating greenhouse gases. But scientists need to find a way to remove radioactive isotopes, both from ...
Nanophysics
Oct 30, 2019
1
295
SHINE Medical Technologies and partner Phoenix LLC have developed a new way to produce molybdenum-99 (Mo-99) for use in medical applications. They claim that testing has shown their new technology breaks the world record ...
Until recently, the analysis and identification of nuclear fuel pellets in nuclear forensics investigations have been mainly focused on macroscopic characteristics, such as fuel pellet dimensions, uranium enrichment and other ...
Analytical Chemistry
Aug 30, 2019
0
69
New Mexico contains hundreds of historic uranium mines. Although active uranium mining in the state has ceased, rates of cardiovascular and metabolic disease remain high in the population residing close to mines within the ...
Environment
Dec 5, 2018
0
11
For decades, scientists have conducted research centered around the five major mass extinctions that have shaped the world we live in. The extinctions date back more than 450 million years with the Late Ordovician Mass Extinction ...
Earth Sciences
May 21, 2018
2
459
Although the current supply of molybdenum-99 and technetium-99m - isotopes used worldwide in medical diagnostic imaging - is sufficient to meet domestic and global demand, changes to the supply chain before year-end could ...
Materials Science
Sep 12, 2016
0
7
