67 citations · 347 across the 53 of their papers we have counts for
11 papers · 1 filter
The sunrise amplitude equation applied to an Egyptian temple
Amelia Carolina Sparavigna
An equation, fundamental for solar energy applications, can be used to determine the sunrise amplitude at given latitude. It is therefore suitable for being applied to archaeoastro…
The play of colours of prisms
Amelia Carolina Sparavigna
A short history of prisms from Lucius Anneus Seneca to George Ravenscroft.
The Vitruvius' Tale of Archimedes and the Golden Crown
Amelia Carolina Sparavigna
The paper discusses the tale that we can find in "The Architecture" by Vitruvius, on a method used by Archimedes to determine the percentage of gold and silver in a crown. The meth…
The architect Kha's protractor
Amelia Carolina Sparavigna
Kha was an architect at Deir El-Medina, Egypt, supervisor of some projects completed during the reigns of three kings of the 18th Dynasty (approximately 1440-1350 BC). Buried with…
Materials Science in Ancient Rome
Amelia Carolina Sparavigna
Two books, the "De Architectura" by Vitruvius and the "Naturalis Historia" by Pliny the Elder, give us a portrait of the Materials Science, that is, the knowledge of materials, in…
Fernando Sanford and the "Kirlian effect"
Amelia Carolina Sparavigna
In 1894 Fernando Sanford discussed in a paper published by the Physical Review an electric photography technique, which he developed starting from 1891. The images that he publishe…