They hang upside down from trusses. They’re art. The artist behind the installation, "Tree Logic" (1999), is Dr. Natalie Jeremijenko, a design engineer in New York University’s art department ...

[Chris] designed his tree entirely with digital logic – no microcontrollers included. The tree [Chris] constructed on a piece of perf board is a beautiful spiral arrangement of 64 green LEDs ...

This week, workers at the Massachusetts Museum of Contemporary Art in North Adams are disassembling Natalie Jeremijenko’s “Tree Logic,” the upside-down tree exhibit that has greeted visitors for ...