Science News for Kids

Publication of the Society for Science & the Public

Skip to main content

Explore:

Tag Archives: filter

An oil filter for water

By Stephen Ornes / September 13, 2012

A new type of filter separates water (blue) from oil (red). Credit: Gibum Kwon, Arun K. Kota and Anish Tuteja.

A new screen can separate oil and water after they’ve mingled

Posted in Chemistry | Tagged Anish Tuteja, chemical engineering, clean water, filter, getinvolved, materials science, oil, oil spill, surfactant, topstories, University of Michigan, University of Pittsburgh, water

Crime-solving camera

By Stephen Ornes / August 31, 2012

A digital camera fitted with the right filters, like the one shown here, can detect only infrared light. The crime-fighting trick can reveal bloodstains hidden behind layers of paint. Credit: bmcent1/iStockphoto

Quick-change trick allows a digital camera to photograph blood concealed by paint

Posted in Light & Radiation | Tagged blood, blood detection, camera, crime, detectives, filter, filters, forensic science, forensics, getinvolved, Glenn Porter, infrared, lens, Lenses, lenses/mirrors/filters, light, paint, photography, physics, radiation, University of Western Sydney, wavelength