Triangolazione

Domenico da Chivasso. Pratica Geometriae, ms, Firenze, 1346, Biblioteca Medicea Laurenziana, San Marco 215, c.127r.

 http://redi.imss.fi.it/invenzioni/index.php/Tavoletta

Vedi anche:
 http://wissensgeschichte.biblhertz.it:8080/Glossario/Glossario_Italiano/monicometro/edit_main

Per il moto dei proiettili

 

 Nicolas Bion. Traité de la construction et des principaux usages des instruments de mathematique, Paris, 1725, tav. 18.

 http://redi.imss.fi.it/invenzioni/index.php/Archipendolo

Scheda di  Filippo Camerota

Un modo di misurar distanze

Cosimo Bartoli. Del modo di misurare le distantie, Venezia, 1564, p. 26r.

vedi l'articolo sullo speccio orizzontale di Filippo Camerota

 http://redi.imss.fi.it/invenzioni/index.php/Specchio_orizzontale

Pesi e carrucole

Leonardo da Vinci - Codice Arundel

Robert Grosseteste in the history of science

Recently I have studied some treatises written by Robert Grosseteste.
Here the links to some papers:

1. arXiv:1302.1885 [pdf]  Reflection and refraction in Robert Grosseteste's De Lineis, Angulis et Figuris, Amelia Carolina Sparavigna ,  Subjects: History and Philosophy of Physics (physics.hist-ph)
2. arXiv:1301.3037 [pdf]  The four elements in Robert Grosseteste's De Impressionibus Elementorum, Amelia Carolina Sparavigna ,  Subjects: History and Philosophy of Physics (physics.hist-ph)
3. arXiv:1212.6336 [pdf]  Robert Grosseteste's colours, Amelia Carolina Sparavigna ,  Subjects: History and Philosophy of Physics (physics.hist-ph)
4. arXiv:1212.1007 [pdf] Sound and motion in the De Generatione Sonorum, a treatise by Robert Grosseteste, Amelia Carolina Sparavigna , Subjects: History and Philosophy of Physics (physics.hist-ph)
5. arXiv:1211.5961 [pdf] Translation and discussion of the De Iride, a treatise on optics by Robert Grosseteste, Amelia Carolina Sparavigna , Subjects: History and Philosophy of Physics (physics.hist-ph)

Divergence of a Radial Vector Field

Divergence of a Radial Vector Field, Tags: divergence, field, radial, vector , 

adapted from the discussion at

 http://www.physicsforums.com/showthread.php?t=56413

 

Leonardo da Vinci e l'attrito

Studio di Leonardo da Vinci sull'attrito.

Dal codice ARUNDEL

Come vincere la gravità

Un artista in via Garibaldi.

"Moving dunes on the Google Earth" is my paper on arXiv, published 4 January 2013. It shows how using GH time series you can see the motion of dunes. Here an example.

To see a movie, please visit Moving sand dunes ... post

http://physics-sparavigna.blogspot.it/2013/06/moving-sand-dunes-on-google-earth.html

NASA spacecraft detects changes in Martian sand dunes

NASA spacecraft detects changes in Martian sand dunes

May 9, 2012 — NASA's Mars Reconnaissance Orbiter has revealed that movement in sand dune fields on the Red Planet occurs on a surprisingly large scale, about the same as in dune fields on Earth.