{"id":26585,"date":"2026-10-30T01:14:48","date_gmt":"2026-10-30T01:14:48","guid":{"rendered":"https:\/\/popularhubnews.com\/?p=26585"},"modified":"2026-10-30T01:14:48","modified_gmt":"2026-10-30T01:14:48","slug":"identifying-small-glass-tubes-3","status":"publish","type":"post","link":"https:\/\/popularhubnews.com\/?p=26585","title":{"rendered":"Identifying Small Glass Tubes"},"content":{"rendered":"<p>A small glass tube containing three tiny metal balls may be an unusual mechanical, scientific, or decorative object. The metal balls could serve as bearings or moving components in a miniature device. It may also come from an older instrument, laboratory tool, or forgotten household gadget. 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