* "Mathematica," an exhibition designed by Charles and Ray Eames that celebrates the convergence of design and science, opens Friday at California Science Center in Exposition Park, Los Angeles, and runs through Sept. 8.
The museum is open daily from 10 a.m.-5 p.m. Admission is free; parking is $6. For more information, call (323) 724-3623.
* The Colorado Street Bridge Festival--a fund-raising event Saturday to support Pasadena Heritage's historical, architectural and preservation programs--will have food, music and posters featuring the bridge painted by R. Kenton Nelson.
Open 6-11 p.m.; $12.50 adults, $6.25 for children. Colorado Street Bridge, Pasadena. (626) 441-6333.
* "Restaurant Design: An On-Site Study Tour," a daylong workshop offered by UCLA Extension's Interior Design Program on Saturday, will feature restaurant owners, architects and designers discussing their concepts, designs, menus and atmospheres from 8:30 a.m. to 5:30 p.m.
