![Soap Bubble thumbnail](https://opn-web-afd-d3bfbkd5bcc5asbs.z02.azurefd.net/opn/media/images/photocontests/2016/04-contest16.jpg?t=638430713975181502)
Soap Bubble
A young child curious for the thin film interference that occurs within a soap bubble. Picture taken with a 35 mm lens, f/7.1, 1/200 sec., ISO-100 at Kent Park, Montreal, Canada.
—Edgar Guevara Universidad de las Américas Puebla
A young child curious for the thin film interference that occurs within a soap bubble. Picture taken with a 35 mm lens, f/7.1, 1/200 sec., ISO-100 at Kent Park, Montreal, Canada.
—Edgar Guevara Universidad de las Américas Puebla