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A Tenth of a Second
inbunden,
2010,
Engelska,
ISBN 9780226093185
In the late fifteenth century, clocks acquired minute hands. A century later, second hands appeared. But it wasn't until the 1850s that instruments could recognize a tenth of a …
The University of Illinois
inbunden,
2017,
Engelska,
ISBN 9780252040825
The founding of the university in 1867 created a unique community in what had been a prairie. Within a few years, this creative mix of teachers and scholars produced innovations in …