Hein Röhrig successfully defended his Ph.D. thesis at the University of
Amsterdam yesterday. The Dutch thesis defense reminds me most of a
traditional American wedding. The defense takes place in a chapel. The
players include the defender (Röhrig), two paranimf (the
groomsmen role), the promotor (advisor, in Röhrig's case two
promoters: Harry Buhrman and Paul Vitányi), a Pedel (an official position in the university now held by a woman; she plays a master
of ceremonies role) and eight opponents
(including myself). The defender and paranimf are in full tux and
tails, the Pedel and full professors in academic gowns and the other
opponents in suits. In the audience are the defender's friends and
family.
The ceremony starts by the defender giving a short description of this
thesis to the audience from a Podium in front of the chapel. Led by
the Pedel, the promotors and opponents enter the chapel from the back
and march to sit in the choir seats. For forty-five minutes the
opponents, one at a time, ask hard questions to the defender about his
thesis. At the end the Pedel reenters the chapel marches to the front,
hits her staff on the ground and says "Hora Est" (Time has
expired). The opponents and promotors march out of the chapel to a
discussion room where we vote on the defense and sign the thesis. We
march back in, present the diploma where the promoters read some
traditional text and give a short speech.
The ceremony is followed by a receiving line and reception with dinner
later on.
Call me a romantic but I truly enjoy the pomp and circumstances that
accompany the Dutch defense sorely lacking in the American counterpart.