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Sewage Sludge Could Be a Gold Mine

The sewage lines in your city could be lined with gold and other precious metals. A new study looked at the amount and value of metals in sludge, a byproduct of sewage treatment. Where do the metals come from?

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How Fast is the Speed of Light?

For more than 100 hundred years, the speed of light has been one of the accepted constants in physics—at 186,282 miles per hour in a vacuum. But is the speed of light really constant?

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Putting Pluto Into Focus

Dwarf planet Pluto, the largest object in the Kuiper belt, will soon be back in the science spotlight. New Horizons is closer to completing its nine year and nearly three-billion mile journey.

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Polar Bears Sniff Paw Prints to Find Love

According to a recent collaborative study, polar bears imprint a unique scent in every step of their trek across the frozen terrain in order to establish dominance and, more importantly, to locate potential mates. 

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  • April/June 2015

    Topics include 3D Printers and the Consumer Electronics Show; Gold and Platinum Found in Sewage; Chimps Drum with Signature Style; How Fast is the Speed of Light?

  • November/December 2014

    Topics include Shoe insole Charges Your Smartphone; Wearable Health Monitor Untethers Patients; Brazil Approves Use of GMO Mosquitoes; A Drinkable Book?

  • June/July 2014

    Topics include the Physics of Soccer; Dogs Can Sense Mood of Owner; Warmer Temperatures for Better Workouts?; Harvesting Fog Brings Water to Millions

  • March/April 2014

    Topics include: Whale's Earwax Tells Life Story; Earth's Core Spins in Two Different Directions; Chimps Outperform Humans at Memory Tasks

  • January/February 2011

    Topics include K'NEX Challenge Winners Revealed; The NSTA Conference Not to Miss; Bionic Eye Takes Sight; Game Systems Go Head-to-Head; Virtual Devices of the Future

  • Fall 2010

    Topics include Oil and Water Don't Mix; Profile - Randy Pausch; K'NEX Challenge - Creativity Connects with Fun; The Science of 'Super Fountains'; Shedding Some Light on the Matter

  • Spring 2010

    Topics include Growing, Living, Teaching and Eating Green; Profile - Garrett Augustus Morgan; Airport Security - Use of Whole Body Imaging; Calcium Causes Problems at International Space Station

  • Fall 2009

    Topics include Raising Millions of Eyes to the Night Skies; Profile - Christa McAuliffe ; Ulysses Ends Long Odyssey; Online Communities Offer Risks and Rewards.

  • Spring 2009

    Topics include Beyond Petroleum - Alternative Energy Sources for a Post-Oil Nation; Profile - Charles Drew; Robots Invade Disaster City; Nano News; It's About Time...

  • Fall 2008

    Topics include: The Challenge of Safe Science; Profile - Michael Faraday; New Pathways for Electricity - Nanotechnology Bends the Rules of Electrical Conductivity.

  • Spring 2008

    Topics include Lie of the Needle - Performance-Enhancing Drugs in Sports; Profile - Dame Jocelyn Bell Burnett; What is a Pulsar?; What Makes a Winning Racehorse?

  • Fall 2007

    Topics include A Deeper Understanding - The Importance of Underground Laboratories; Profile - Don Jeffry Herbert; That Fantastic, Cleaning, Whitening Magical Goop.

  • Spring 2007

    Topics include The Science of Questioned Documents; Dian Fossey and the Mountain Gorilla; Animals With Accents?

  • Fall 2006

    Topics include Alternative Fuels; Profile - Leonardo Da Vinci; Nanotech Powers Navy Into the Future; When Stars Collide…

  • Spring 2006

    Topics include Huge Advances in a Tiny Science; Profile - Chien-Shiung Wu; It's Cold. It's Hot. It's Fusion!; Kiss Your Universe Goodbye!

  • Fall 2005

    Topics include: New Frontiers in Stem Cell Research; Profile - Vivien Theodore Thomas; The Global Concern for Environmental Issues.

  • Fall 2004

    Topics include TV Crime Science Exposed; Profile - Marie Curie; Lab Renovation and Construction