Photos of the open siphon experiment using a 0.5 wt% 8 million g/mol PEO solution laden with 2 wt% 10 – 20 nm silica particles

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(a)                                                                       (b)

                    

(c)                                                                       (d)

Photos of the open siphon experiment using a 0.5 wt% 8 million g/mol PEO solution laden with 2 wt% 10 – 20 nm silica particles. Elapsed time: (a) 2.4 s; (b) 4.6 s; (c) 22.5 s; (d) 60 s. About 30 ml fluid is left in the beaker after the siphon.