![](http://www.alamy.com/thumbs/6/CF591F75-0A2D-4450-9E27-3C74CBD1A979/C39DN5.jpg)
startbutton of old nuclear reactor R1 in Stockholm
Size: 3830px × 2443px
Photo credit: © roos / Alamy / Afripics
License: Royalty Free
Model Released: No
Keywords: button, gray, grey, kth, kungliga, nuclear, reactor, start, startbutton, technology, tekniska, ögskolan