Weird science.

PLAY
Robot Nightlife
What: All the robots you could ever hope to see in a boxing match, plus the humans who dreamed them up.
Why: Two live musical performances accompany the machinated main event.
When: Today, 6-10 p.m.
Where: California Academy of Sciences, 55 Music Concourse Dr., Golden Gate Park (415-379-8000). Tickets ($12) at calacademy.org.

Sandbox
What: Make your own fun trying out new games, or go bold and take a game of your creation for the group to try.
Why: Release your inner Ben Wyatt and Cones of Dunshire into the world.
When: Today, 7-10 p.m.
Where: Freespace, 1011 Market St., at 6th St. (415-814-3136).

LAUGH
Best of SF Stand-Up Comedy
What: A cohort of comedians delivers their finest funnies.
Why: See the stomping ground where headliners like Margaret Cho and Patton Oswalt got their start.
When: Fri., 8-10 p.m.
Where: Phoenix Theatre, 414 Mason St., at Geary St. Tickets ($15) at brownpapertickets.com.

LEARN
Beginning Weaving
What: Create a wall-hanging wonder with Meghan Bogden Shimek, owner of Native Textile.
Why: All the materials are included in this introductory class.
When: Sat., noon-5 p.m.
Where: Ogaard Textile Work, 5861 San Pablo Ave., at 59th St., Oakland. For tickets ($70), email ogaardshop@gmail.com.

SHOP
Stone Cold Fox Pop-Up
What: The L.A. line brings its ’60s- and ’70s-inspired bridalwear to town.
Why: Nontraditional brides can stock up on off-the-shoulder gowns, kimono-style dresses, and more vintage-y pieces.
When: Sun., 9 a.m-5 p.m.
Where: 109 Geary St., at Grant St. (212-571-2166).

Photo: Tim Williamson