@MegaMichelle Einstein's opposition to quantum mechanics included a paper complaining that the equations for alpha particle emission described an expanding probability sphere, but in a cloud chamber, the alpha particle makes a linear track. He wasn't thinking about all the other atoms in the cloud chamber. The probability sphere "collapses" into a line when the alpha particle starts affecting the behavior of other atoms. Physicists call that "a measurement" or "an observation" that reduces (collapses) the area of probability from being a cloud (or other shape) into a point or line. It could be said that the wave of probability collapses into a particle of actuality.

https://youtu.be/gY6Jr7tB2fU?si=N7YP-GZjVS7bKDst

We see light behaving as a wave most of the time and behaving as photon only when it hits matter.

#science #einstein #quantumMechanics

Et si on appliquait cette citation d’Einstein au numérique ?
Continuer à confier nos données aux mêmes géants en espérant un Internet plus éthique… c’est aussi une forme de folie.
Changeons nos habitudes, construisons un numérique différent !

#numériqueresponsable #SouverainetéNumérique #changement #Einstein #TechÉthique

Et si on appliquait cette citation d’Einstein au numérique ?
Continuer à confier nos données aux mêmes géants en espérant un Internet plus éthique… c’est aussi une forme de folie.
Changeons nos habitudes, construisons un numérique différent !

#numériqueresponsable #SouverainetéNumérique #changement #Einstein #TechÉthique

The unexplained disappearance of the previously- #OpenAccess Digital Einstein Papers is the subject of a question on the History of Science and Mathematics StackExchange [https://hsm.stackexchange.com/questions/18948/why-have-princeton-universitys-free-online-einstein-archives-disappeared], on which a bounty is now being offered for a definitive answer.

The comments on the question contain some speculations about the reason for the site being taken down. No answer has been offered yet, presumably because Princeton University Press, for all its publicity about the new paid-for database of the Einstein papers, seems to be quietly ignoring the 10+ years of open access that came before.

#Einstein #HistSci

The unexplained disappearance of the previously- #OpenAccess Digital Einstein Papers is the subject of a question on the History of Science and Mathematics StackExchange [https://hsm.stackexchange.com/questions/18948/why-have-princeton-universitys-free-online-einstein-archives-disappeared], on which a bounty is now being offered for a definitive answer.

The comments on the question contain some speculations about the reason for the site being taken down. No answer has been offered yet, presumably because Princeton University Press, for all its publicity about the new paid-for database of the Einstein papers, seems to be quietly ignoring the 10+ years of open access that came before.

#Einstein #HistSci