English Robert G. Jahn Cited by user Rjwilmsi on 17 Jan 2015 Robert G. Jahn, Ph.D. (born April 1, 1930) is a retired American plasma physicist, Professor of Aerospace Science, and Dean of Engineering at Princeton University.
Kiswahili Maana ya maisha Cited by user 196.201.218.233 on 15 Jan 2010 Maana ya maisha ni mojawapo kati ya masuala makuu kuhusu thamani, madhumuni na umuhimu wa binadamu kuwepo duniani na wa maisha kwa jumla.