Star Trek 'Tricorder' For Chemical Analysis

Scientists Invent Real-life 'Tricorder' For Chemical Analysis. Purdue University researchers have created a handheld sensing system its creators liken to Star Trek's "tricorder" used to analyze the chemical components of alien worlds. But the system could have down-to-earth applications, such as testing foods for dangerous bacterial contaminants including salmonella, which was recently found in a popular brand of peanut butter. - from ScienceDaily