Karl Terzaghi, reached out to Laurits Bjerrum in 1954, impressed by his paper on Norwegian quick clays' stability. At 36, Bjerrum, already a PhD and NGI director, emphasized practical research integration, influenced by centers like Imperial College London. He advocated for Soil Mechanics in civil engineering education and founded its chair in 1960. Bjerrum left a lasting legacy, earning international acclaim for his NGI work and collaborations with geotechnicals like Terzaghi and Casagrande.

The meteorite "Veramin" fell in Persia ca. 1880. In the records, there are ambiguities about the event and we therefore scrutinized the available sources. The current official name, coined by meteoricist A. Brezina, is not supported by Iranian documents. A key document is a rediscovered label with the main mass of the meteorite. The indicated place of the event, probably occurring in February–April 1880, is Booghin of in the historical Zarand district, 100 km NW from Veramin (Varamin).

Long-term series of historical observations in Latvia of mesospheric clouds are digitized. Observational data are freely available to researchers. Observation sites, methodology and technical support are described. A brief overview of mesospheric cloud observation statistics 1957–1983.

This article collects and analyzes reports of auroras published in the Extremadura newspaper from 1923 to 2017. We identified 31 articles describing these events, including major auroras in 1926, 1938, 1957, and 1991. This research highlights the value of newspapers in reconstructing past solar activity.