# How to Make a Time Capsule That Will Last 250 Years

- Published: 2026-07-02T09:01:25Z
- Updated: 2026-07-07T10:12:43Z
- Section: Science & Environment
- Language: English (en)
- Source: The New York Times — https://www.nytimes.com/2026/07/02/science/america250-time-capsule.html
- Tags: The New York Times · Science
- Canonical: https://www.khabarestan.com/en/news/%D8%B3%D8%A7%D8%AE%D8%AA-%DA%A9%D9%BE%D8%B3%D9%88%D9%84-%D8%B2%D9%85%D8%A7%D9%86-%D8%A8%D8%B1%D8%A7%DB%8C-%D8%AD%D9%81%D8%B8-%D9%85%DB%8C%D8%B1%D8%A7%D8%AB-%D8%AA%D8%A7%D8%B1%DB%8C%D8%AE%DB%8C-%DB%B2%DB%B5%DB%B0-%D8%B3%D8%A7%D9%84%D9%87

The America250 time capsule will hold dozens of historical treasures. Avoiding dampness and other dangers requires lots of engineering.

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