Liquids bounce off super-repellent surface

Liquids bounce off super-repellent surface

Brought to you by MconneX (http://www.engin.umich.edu/alumni) A nanoscale coating that’s at least 95 percent air repels the broadest range of liquids of any material in its class, causing them to bounce off the treated surface, according to the University of...
Is light a particle or a wave? – Colm Kelleher

Is light a particle or a wave? – Colm Kelleher

Can we accurately describe light as exclusively a wave or just a particle? Are the two mutually exclusive? In this third part of his series on light and color, Colm Kelleher discusses wave-particle duality and its relationship to how we see light and, therefore,...