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All roads lead to (New) Rome: Byzantine astronomy and geography in a rapidly changing world
Richard de Grijs
During the first few centuries CE, the centre of the known world gradually shifted from Alexandria to Constantinople. Combined with a societal shift from pagan beliefs to Christian…
The Cosmology of David Bohm: Scientific and Theological Significance
Richard de Grijs, Doru Costache
We discuss David Bohm's dual contributions as a physicist and thinker. First, de Grijs introduces Bohm's universe, with an emphasis on the physical quest that led Bohm to the elabo…
Early Star Charts of the Dutch East India Company
Richard de Grijs
As the European maritime powers expanded their reach beyond north Atlantic coastal waters to distant lands as far away as the East Indies, access to a practical means of maritime n…
Astronomical tent observatories, relics of a bygone era
Richard de Grijs
Between the mid-eighteenth and mid-nineteenth centuries, long-haul oceanic voyages of exploration and discovery routinely carried astronomical tent observatories to support land-ba…
Roger of Hereford: the twelfth-century astronomer who put Hereford on the map, literally
Richard de Grijs
By the twelfth century, northern European scholars gradually embraced Arabic innovations in science and technology. England naturally developed into a significant centre of the new…
The search for longitude: Preliminary insights from a 17th Century Dutch perspective
Richard de Grijs
In the 17th Century, the Dutch Republic played an important role in the scientific revolution. Much of the correspondence among contemporary scientists and their associates is now…