Arecibo Observatory . ... All participants will take part in a Hands-on Project at the single-dish school. Mentored by a member of the NAIC or NRAO staff, each of you will join a team of 3 or 4 participants to perform a short pre-planned research-style observation. ... Hence, while summer clothing is appropriate, a light sweater may be needed for the evenings, and also in the air-conditioned rooms, lecture theater and control room of the Observatory. ...