25 years ago: the official farewell to the meter

On october 21st 1983 took place in S\`evres on the western outskirts of Paris the official funeral of the meter. With it the notion of distance as a physical observable was buried

25 Years Ago: The First Asynchronous Microprocessor

Twenty-five years ago, in December 1988, my research group at Caltech submitted the world’s first asynchronous (“clockless”) microprocessor design for fabrication to MOSIS. We received the chips in early 1989; testing started in February 1989. The chips were found fully functional on first silicon. The results were presented at the Decennial Caltech VLSI Conference in March of the same year. The first entirely asynchronous microprocessor had been designed and successfully fabricated. As the technology finally reaches industry, and with the benefit of a quarter-century hindsight, here is a recollection of this landmark project

25 Years Ago in the JBPA/JBP

In this column, we look back at the content and imageryfound in the Journal of the Biological PhotographicAssociation (JBPA), later renamed the Journal ofBiological Photography (JBP). This column examinesimportant articles from 25 years ago. In doing so, we gainsome insight into those legacy photography techniques ofthat time

25 years ago: the end of history?

I just read this very interesting critique in the Guardian Review of Francis Fukyama’s essay ‘The End of History?’, which came out 25 years ago this summer. Ignore the somewhat silly title, clearly designed for maximum impact; there was actually something intriguing about the essay, and Eliane Glaser, the author of the Guardian essay, does a very good job reminding us of what that was

Searle and Cherenkov\u27s A Future and a Hope: Mission, Theological Education, and the Transformation of Post-Soviet Society - Book Review

Anniversary reflections on developments since the end of the Soviet Union 25 years ago have started, but rare is the book attempting an assessment of what happened to post-Soviet evangelicals