Ongoing through March 31, 2013 | Times and locations TBA Location: Multiple locations in San Francisco; for specific locations, follow @theexplainers on Twitter. In the months before our grand opening, orange-vested Explainers will bring the Exploratorium experience to unexpected spots around San Francisco. These weekly site-specific activities will be designed to make you notice and engage with the world around you, and to shake you out of your normal, everyday routines. Explainers will help you notice clouds at Aquatic Park, find north without a compass at Ghirardelli Square, experience our mobile Camera Obscura in Union Square, and challenge your sense of perception out in the neighborhoods. In January locations will vary; in February and March, look for those orange vests along the Embarcadero, in front of Pier 15. Music by Pat Spurgeon