Datum: 1989-08-25 Titel: Provning av slitstyrkan hos stenmaterial till vägbeläggningar genom våtnötning i kulkvarn - f
![Techmeme: The Facebook stock drop foreshadows a potentially less profitable future as it relies more on video formats like Stories with a lighter ad load than News Feed (Janko Roettgers/Variety) Techmeme: The Facebook stock drop foreshadows a potentially less profitable future as it relies more on video formats like Stories with a lighter ad load than News Feed (Janko Roettgers/Variety)](http://pmcvariety.files.wordpress.com/2018/03/facebook-logo-9.jpg?w=1000&h=562)
Techmeme: The Facebook stock drop foreshadows a potentially less profitable future as it relies more on video formats like Stories with a lighter ad load than News Feed (Janko Roettgers/Variety)
![BLESSING OF THE CONSTRUCTION SITE FOR THE LABORATORIES AND STAFF ROOM BLOCK AT DON BOSCO TECHNICAL SECONDARY SCHOOL - CHINGOLA - SDB Chingola BLESSING OF THE CONSTRUCTION SITE FOR THE LABORATORIES AND STAFF ROOM BLOCK AT DON BOSCO TECHNICAL SECONDARY SCHOOL - CHINGOLA - SDB Chingola](https://sdbchingola.org/wp-content/uploads/2020/08/IMG-20200823-WA0044.jpg)