Short history of the discovery of photovoltaic effect

Voir le sujet précédent Voir le sujet suivant Aller en bas

Short history of the discovery of photovoltaic effect

Message par Olivier Reginensi le 2014-06-19, 07:37

Hi,

As we will all be using PV panels, it should be interesting to learn a little more about the discovery of photovoltaic effect:

Full article: http://en.wikipedia.org/wiki/Photoelectric_effect

First discovery in 1839 by Mr. Becquerel, followed by many other scientists throughout the 19th century.
They all lead to the main breakthrough, in 1905 by an almost unknown guy who wrote four short papers in a not so much renowned scientific journal, "Annalen der Physik" :
1. "Zur Electrodynamik bewegter Koerper"
(English Translation: "On the Electrodynamics of Moving Bodies")
2. "Ist die Traegheit eines Koerpers von seinem Energieinhalt abhaengig?"
(English Translation "Does the Inertia of a Body Depend on its Energy Content"
3."Ueber einen die Erzeugung und Verwandlung des Lichtes betreffenden heuristichen Gesichtspunkt"
(English Translation: "On a Heuristic Point of View about the Creation and Conversion of Light")
4. Ueber die von der molekularkinetischen Theorie der Waerme geforderte Bewegung
von in ruhenden Fluessigkeiten suspendierten Teilchen"
(English Translation: "Investigations on the Theory of the Brownian Movement"

The third one deals with photovoltaic effect.

These four articles contributed substantially to the foundation of modern physics and changed views on space, time, mass, and energy.
They made the year 1905 the "Annus Mirabilis" for physics.

The name of the author: Albert The Great (guess his name...).

The results are relativity and quantum mechanics.

In your every days life, the application of these discoveries are:
- for quantum mechanics: laser, transistor, microchip, the electron microscope, and magnetic resonance imaging (MRI), diodes used in display devices or lights, flash memories.
- GPS (general relativity and quantum mechanics).

In the future, quantum cryptography, quantum computers and maybe quantum teleportation which is beginning to leave the science fiction world to be real, at least for a few atoms.

So, when you will be fighting against headwind under a cloudy sky, you will insult this fucking Albert who made possible this horrible trip...

Olivier
avatar
Olivier Reginensi

Messages : 158
Date d'inscription : 01/04/2014
Localisation : Lans en Vercors

Revenir en haut Aller en bas

Voir le sujet précédent Voir le sujet suivant Revenir en haut


 
Permission de ce forum:
Vous ne pouvez pas répondre aux sujets dans ce forum