Suds on the River Liffey

I had been thinking about how one might take a sample of suds floating on the surface of a river. The photo to the left shows suds on the Liffey at Newbridge, Co. Kildare, Ireland. It was taken on my mobile phone from the upstream side of the bridge at Newbridge, looking down on the water. The water level and the rate of flow on the river were quite low at the time: 16:53 24 September 2010.
Continue reading →