JTS Ordination Address 5773 (May 17, 2013)

Dear graduates, it is my great honor to address you and your loving supporters—your family, friends and teachers—as we begin the ceremony of your investiture and ordination. We are pleased to welcome many distinguished guests, including our JTS faculty, and members of the Cantor’s Assembly and the Rabbinical Assembly, whose presidents will participate in ceremonies…

Adaptive Optics: Behar-Behukotai 5773/2013

The other night I read a magazine article on the construction of the Giant Magellan Telescope (GMT), an international collaboration to construct the greatest earth-based observatory up in the Andes Mountains in Chile.  The technology involved in manufacturing the massive set of primary mirrors, with an effective diameter of 24.5 meters (80 feet), is remarkable,…