Science Behind the News: Quantum Computing

submitted by: nsf

Imagine if engineers could build a computer to be millions of times faster than anything that exists today, yet so small it’s microscopic. John Preskill, a theoretical physicist at the California Institute of Technology, explains the science behind quantum computing, the next great frontier in computer science. "Science Behind the News" is produced in partnership with NBC Learn.

Provided by the National Science Foundation & NBC Learn

Science Behind the News: Predictive Policing

submitted by: nsf

"The Los Angeles Police Department is using a new tactic in their fight against crime called “predictive policing.” It's a computer program that was originally developed by a team at UCLA, including mathematician Andrea Bertozzi and anthropologist Jeff Brantingham. “Science Behind the News” is produced in partnership with NBC Learn.

Provided by the National Science Foundation & NBC Learn

Harvesting Electricity: Triboelectric Generators Capture Wasted Power

submitted by: nsf

With one stomp of his foot, Zhong Lin Wang illuminates a thousand LED bulbs--with no batteries or power cord. A professor at the Georgia Institute of Technology, Wang is using what’s technically known as the triboelectric effect to create surprising amounts of electric power by rubbing or touching two different materials together.

Source: Georgia Institute of Technology

Generating Electricity More Efficiently with Multiphase Thermoelectric Converter

submitted by: MFerreiraJr
The Multiphase Thermoelectric Converter is a direct thermal-to-electrical energy conversion system designed in order to harvest most of the waste heat energy efficiently into electricity. Conceptually, it works by ionizing hot coolant in order to force it F=q(v × B) to push its ions against moving magnetic fields doing useful work converting thermal energy directly into electric power at high efficiency with almost no moving parts. Essentially, it can be comprised of two sets of concentric...

Evidence-Based Strategies in Weight Loss Mobile Apps

submitted by: spagoto
Background: Physicians have limited time for weight-loss counseling, and there is a lack of resources to which they can refer patients for assistance with weight loss. Weight-loss mobile applications (apps) have the potential to be a helpful tool, but the extent to which they include the behavioral strategies included in evidence-based interventions is unknown. Purpose: The primary aims of the study were to determine the degree to which commercial weightloss mobile apps include the...
Authors: Sherry Pagoto, Kristin Schneider, Mirjana Jojic, Michelle DeBiasse, Devin Mann

Monitoring Long-Term Global Climate Change with Ion Chromatography

submitted by: Chrom Solutions
The British Antarctic Survey (BAS) is a leading environmental research center that focuses on the United Kingdom’s national scientific activities in Antarctica. Some of their current research includes long-term monitoring of global climate change via ice core sample analysis of the polar ice caps in both Antarctica and Greenland. In this video, Dr. Ailsa Benton, Ice Core Analytical Scientist at with the BAS, describes her research and how BAS scientists are able to analyze essential anions...