2013-09-05 15.35.50 5 September 2013/by Rob Speekenbrink https://www.tedxdelft.nl/wp-content/uploads/2016/02/TEDxDelftLogoWebsite.jpg 0 0 Rob Speekenbrink https://www.tedxdelft.nl/wp-content/uploads/2016/02/TEDxDelftLogoWebsite.jpg Rob Speekenbrink2013-09-05 16:27:172013-09-05 16:27:172013-09-05 15.35.50