On 17 February 1869, Russian chemist Dmitri Mendeleev jotted down the symbols for the chemical elements, putting them in order according to their atomic weights and inventing the periodic table.

The modern periodic table, arranged in rows and columns, was first introduced by Dmitri Mendeleev in 1869. At the time, it included the known elements and their properties, but Mendeleev predicted ...

MORE - UEFA Champions League hub — Format, schedule, more The schedule was longer, the table bigger, and we’ve now seen how chaotic a final matchday can look, with all 18 games played at the same time ...

Newly captured satellite imagery shows Russia appearing to evacuate military equipment from a key naval base in Syria. The images are the latest sign that Moscow is scaling down its footprint in ...

In his first remarks as President Donald Trump’s defense secretary, Pete Hegseth referred to two U.S. military bases by their former Confederate names, appearing to hint that he might possibly restore ...

The Dutch government must make further cuts to nitrogen pollution or risk a €10 million ($10.5 million) fine after losing a court fight with Greenpeace that’s reignited a decade-long political ...

Human urine is rich in compounds useful for growing crops, such as nitrogen, but chemical processes to extract these compounds are less efficient than industrial methods of making fertiliser ...

Protein protects biological nitrogen fixation from oxidative stress Date: January 15, 2025 Source: University of Freiburg Summary: A research team has discovered how the 'Shethna protein II ...

The 11th annual Nitrogen Conference was held on Feb. 4, 2025, in Mankato. We will post videos from the conference on this page as they become available. University of Minnesota Extension and the ...

The treatments with the highest fertilization rates (50 F and 100 F) were not affected by nitrogen stress but moderate N stress periods were simulated around 15 and 20 DAS in both years for the other ...