Learning about WR absolute calibration at NIKHEF, Amsterdam.
![](http://www.anderswallin.net/wp-content/uploads/2018/11/20181114_152150.jpg)
Learning about WR absolute calibration at NIKHEF, Amsterdam.
ISPCS-2018 and the 10th WR-workshop were held at CERN.
Antimatter experiments: ELENA, GBAR
Citadelle de Besancon. EFTF-IFCS 2017 this week in Besancon.
ITSF2016 last week including a visit to the Strahov library.
Olavinlinna, the northernmost medieval stone fortress still standing.
Some hiking in Helvetinjärvi ("Lake of Hell") and Seitseminen national parks.