title: Submerged (under-liquid) floating of light objects.
abstract: A counterintuitive submerged floating of objects lighter than the supporting liquid was observed. Polymer plates with dimensions on the order of magnitude of the capillary length were hydrophilized with cold air plasma were floated in an "under-liquid" regime (totally covered by liquid) when immersed in water or glycerol. Profiles of liquid surfaces curved by polymer plates are measured. We propose a model explaining the phenomenon. The floating of Janus plates is reported.
authors.affiliation: Physics Faculty, Ariel University, Ariel, POB 3, 40700 Israel. edward@ariel.ac.il
authors.forename: Edward
authors.initials: E
authors.lastname: Bormashenko
authors.forename: Roman
authors.initials: R
authors.lastname: Pogreb
authors.forename: Roman
authors.initials: R
authors.lastname: Grynyov
authors.forename: Yelena
authors.initials: Y
authors.lastname: Bormashenko
authors.forename: Oleg
authors.initials: O
authors.lastname: Gendelman