This report documents the work done by Team 2 during Tool Day at the National Building Museum (NBM), Washington, DC. Tool Day occurred on Sunday, 22 April 2001. The Museum was open to the public during the Tool Day event and team members had generally unlimited access to the public as well as the backstage spaces of the Museum. Tool Day began with a tour of the building conducted by Martin Moeller that provided a sense of the spaces and the history that comprise this wonderful facility. A short demonstration of the tools available to the several teams was then provided by University of Oregon Graduate Teaching Fellows. Based upon observations made during the tour, each team developed a primary hypothesis to be explored during the remainder of the Tool Day. These hypotheses were shared with the group as a whole and were the basis for measurement methodologies. The results of each team's measurements and analyses were shared with other teams at the conclusion of Tool Day -- and with a wider audience through this WWW site.

Exterior of NBM from
METRO escalator
Martin Moeller conducts
tour of NBM
Interior of NBM showing
vertical aspects of Great Hall
Group discussion leading to
hypothesis formation


Interior of NBM showing
breadth of Great Hall
Christina Bollo and Nick Rajkovich
demonstrate equipment use
South facade of NBM Alternative equipment (but
that's another team's story)


Thermal conditions in the Great Hall of the National Building Museum will be reasonably constant in both the vertical and horizontal dimensions.

This hypothesis was influenced by the thermal sensations experienced during the tour of the Museum and by the observation of large air flow volumes being introduced to the space through diffusers at the upper levels of the Great Hall. The hypothesis negates the gut instinct to believe that the height and breadth of the Great Hall would lead to substantial stratification and perhaps horizontal non-uniformity. Secondary findings during the course of the team's investigations make this an even more intriguing hypothesis than at first realized.

The "thermal conditions" referred to in the hypothesis are air dry bulb temperature and relative humidity -- variables that could be measured with available equipment. Although not really defined, "reasonably constant" was probably understood by most team members to include a range of around 5 degrees F and around 10% relative humidity.


As it became clear that the team would have time on its hands while the automatic data acquisition equipment did its thing (see next section), several "sub-hypotheses" were developed by individual team members -- thus the team appellation The Wanderers. [Caution students: do not adopt the concept of sub-hypothesis without the express, written, prior approval of your instructor.] These sub-hypotheses involve hand-held, instantaneous measurement equipment, observation, and/or verbal inquiry.

Team 2 Findings >

Tool Day Home | Team 2 Home

This page was last updated on 8 May 2001.