“The gravitational force is the oldest force known to man and the least understood.”
[P. Van Nieuwenhuizen, Supergravity, Volume 68, Issue 4 of Physics reports, North-Holland Pub. Co., 1981, 4]
Peter van Nieuwenhuizen ist ein niederländischer theoretischer Physiker und einer der Entwickler der Theorie der Supergravitation. Wikipedia
“The gravitational force is the oldest force known to man and the least understood.”
[P. Van Nieuwenhuizen, Supergravity, Volume 68, Issue 4 of Physics reports, North-Holland Pub. Co., 1981, 4]