13 / 20 : Visit of Questacon with my friends Jihui and Jie, Canberra, 07.06.2015: Questacon20150607 131039
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The text reads as: "The rubber in this hourglass |
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The text reads as: "The rubber in this hourglass was gradually flowed downwards since 1982 when it was installed. The rubber reached the bottom in 199 and continues to flow slowly today. ..".
- 2015 Jun 07 13:10:39
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