Task: Text Categorization
Input (English): In the chiral bag model of nucleons, this effect explains the origin of non-zero expectation values for fermion bilinears, and it has been proposed as a possible explanation for sonoluminescence. It has been measured to within 1% of its theoretical value using a polystyrene sphere attached to the tip of an atomic force microscope. Its namesake originally proposed it after investigating van der Waals forces in colloidal solutions, when he noted that fluctuations in the second-quantized electromagnetic field could explain the interaction between two neutral particles. FTP name this effect that describes the attractive force between two uncharged conducting plates in a vacuum, which is named for a Dutch physicist.
Output (English): Science