Signs, Of The 2012 Discovery Days

Physics: "Bat Marimba" and "Baseball Dissection"
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The sign for the π Exploratorim described two different activities. The first was the, "Bat Marimba" internal link

Understanding the vibrational modes of the [bat]
and how one places the "node" or "sweet spot" is best

Tools you will use: Bat marimba and mallets

Activities: By tapping along the length of a
bat, detect the "sweet spot" with
little or no vibration"

Concepts Covered: The "node" transfers the
maximum amount of swing energy
back into the ball, making it [travel] the
furthest.

Second was the, "Basebal Disection"
Baseballs of various types
-Major League
-Little League
-Teeballs
-Softballs


Signs Of The 2012 Discovery Days   •  Bay Area Science Festival external link   •  San Francisco Giants internal link Ballpark   •  AT&T Park external link 3rd and King Streets   •  San Francisco, California   •  (Photo posted Friday 9 November 2012)   •  (Photo taken 12:13:05 Saturday 3 November 2012)   •  © 2012 Bryan Costales Creative Commons Attribution-NonCommercial License #B12_8118
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Gray Whale On Beach
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Discover_Days_ATT_Park_20121103_122014_B12_8138.jpg

Folks were allowed to touch the backbone of a whale internal link. A sign with pictures described where the whale had come from.


Signs Of The 2012 Discovery Days   •  Bay Area Science Festival external link   •  San Francisco Giants internal link Ballpark   •  AT&T Park external link 3rd and King Streets   •  San Francisco, California   •  (Photo posted Friday 9 November 2012)   •  (Photo taken 12:20:14 Saturday 3 November 2012)   •  © 2012 Bryan Costales Creative Commons Attribution-NonCommercial License #B12_8138
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Gravity Desribed By Weight
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Discover_Days_ATT_Park_20121103_122713_B12_8159.jpg

Another sign showed the weight of various common objets, such as a bowling ball and a baseball. The numbers were wieghts (mass) in grams.


Signs Of The 2012 Discovery Days   •  Bay Area Science Festival external link   •  San Francisco Giants internal link Ballpark   •  AT&T Park external link 3rd and King Streets   •  San Francisco, California   •  (Photo posted Friday 9 November 2012)   •  (Photo taken 12:27:13 Saturday 3 November 2012)   •  © 2012 Bryan Costales Creative Commons Attribution-NonCommercial License #B12_8159
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Another Chalk Exploratorium Sign
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Discover_Days_ATT_Park_20121103_122804_B12_8162.jpg

Neuroscience "Pitching Nightmares"

Shift your sight by 15 degrees or so off center and take a swing.
Tools you will use: Foam core batter, beanbags and special glasses.

Activity: Wearing the special glasses try to throw strikes with beanbags.

Concept Covered:


Signs Of The 2012 Discovery Days   •  Bay Area Science Festival external link   •  San Francisco Giants internal link Ballpark   •  AT&T Park external link 3rd and King Streets   •  San Francisco, California   •  (Photo posted Friday 9 November 2012)   •  (Photo taken 12:28:04 Saturday 3 November 2012)   •  © 2012 Bryan Costales Creative Commons Attribution-NonCommercial License #B12_8162
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