Bulgaria will be the second European country to receive the newly built F-16 Block 70, with 16 fighters to be delivered as replacement for the MiG-29 fleet. Lockheed Martin announced that the first ...

Key Points and Summary - USAF leaders floated an “F-16 Block 80” as a faster, cheaper way to bolster a shrinking fighter force. -The concept would build on export-only Block 70/72 jets—much like ...

The lanthanide (4f) and actinide (5f) elements (collectively the “f-block”) comprise around a quarter of the periodic table, and many are essential to key aspects of modern life and society. These ...

The first two Lockheed Martin F-16 Block 70 jets, initially stationed at Morris Air National Guard Base, Tucson, to support pilot training, have now been transferred to Slovakia. The arrival of the ...

The F-16V Block 70/72 “Viper” is described as every bit a revolution in the world of fighter aircraft as the flight of the original YF-16 prototype more than half a century ago was. The aircraft’s ...

Iron and oxygen bind together throughout the body. Most famously, iron binds dioxygen, or two oxygens paired with each other, in hemoglobin that transports oxygen through blood. But iron-oxo compounds ...

F‐Block chemistry encompasses the study of elements whose valence electrons occupy the f‐orbitals, including both the lanthanides and actinides. These elements exhibit unique electronic structures ...