TechKnow

Aug 25, 2013 · 25m

Hosts ask how soon genetically modified salmon could hit your table, how NASA charts out a Mars rover's path and discover a secret garden inside Chicago's O'Hare Airport.

Sep 1, 2013 · 25m

A bionic exoskeleton helping paralyzed people walk again and meet a teenage inventor of a cancer screening test.

Sep 8, 2013 · 25m

A new device that allows hearts and other organs to live outside the body, explore New York City's ambitious plan to convert its taxi fleet to electric cars and meet a teenager who used a 3-D printer to create a prosthetic, robotic arm.

Sep 15, 2013 · 25m

Explore how a remotely piloted Predator drone helped fight the Rim fire in Yosemite National Park

Sep 22, 2013 · 25m

Meet Carmen Tarleton, the seventh person in the U.S. to receive a full face transplant, as she rebuilds her life and meets the donor's daughter.

Sep 29, 2013 · 25m

Join our expert contributors as they explore high-tech methods to artificially inseminate honey bees, which are dying in record numbers.

Oct 6, 2013 · 25m

Join our expert contributors as they explore new technology, including a new kind of high-density plastic that can be inserted into students' backpacks or teachers' white boards in hopes of deflecting gunfire.

Oct 13, 2013 · 25m

Phil takes a ride with NASA in a flying science lab that measures evidence of climate change.

Oct 20, 2013 · 25m

Marita goes swimming with sharks to see first-hand how a new underwater robot is tracking animal behavior in the ocean.

Oct 27, 2013 · 25m

Crystal, a nicotine researcher, investigates the science behind e-cigarettes and vape culture.

Nov 1, 2013 · 25m

Crystal, a nicotine researcher, investigates the science behind e-cigarettes and vape culture. Plus, Marita meets chefs and scientists teaming up to create new high-tech restaurants, and Phil gets his hands on a new device that allows hearts.

Nov 17, 2013 · 25m

Marita goes inside San Francisco's new Bay Bridge to see its innovative approach to earthquake proofing. Kosta visits a startup working to make humans invisible to mosquitoes.

Nov 24, 2013 · 25m

Phil puts his entomology chops to the test to learn how bugs may be the most overlooked protein.

Dec 8, 2013 · 25m

Lindsay learns how police departments are using lapel cameras and acoustic sensors to maximize efficiency and reduce crime.

Dec 15, 2013 · 25m

Lindsay tests out the treatments doctors and therapists are using to help soldiers diagnosed with PTSD and traumatic brain injuries, including hyperbaric oxygen therapy and virtual reality therapy.

Dec 22, 2013 · 25m

Dec 29, 2013 · 25m

Jan 5, 2014 · 25m

Kosta gets a look at how 3D printing can be used to make everything from home electronics to baked goods—even an artificial heart valve that expands as pediatric patients grow.

Jan 12, 2014 · 25m

Shini goes to Oklahoma to visit infamous "Tornado Alley" to see new innovations being developed to better track tornadoes and lessen the damage they cause.

Jan 19, 2014 · 25m

Phil travels to Peru to uncover whether a spider or mite could be constructing never-before-seen circular web structures.

Jan 26, 2014 · 25m

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Feb 23, 2014 · 25m

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Apr 6, 2014 · 25m

Shini reports on facial recognition software used for law enforcement—and nightclubs. Marita visits a San Francisco lab working to build a better, plant-based egg substitute. Plus Kyle visits a solar field in Nevada.

Apr 13, 2014 · 25m

Testing out satellite technology that can detect a heartbeat buried under rubble.

Apr 20, 2014 · 25m

New data on e-cigarettes reveals what's really in them and the secondhand smoke impact.

Apr 27, 2014 · 25m

Taking their cue from cancer-detecting dogs, scientists work towards developing high-tech devices that can sniff out cancer early.

May 4, 2014 · 25m

Scientists want to harvest spider silk, which could be used to hold up bridges or create artificial body parts.

May 11, 2014 · 25m

NASA observes shrinking glaciers and fast rising seas; charts impacts of climate change.

May 18, 2014 · 25m

Living laboratory; one of the greenest houses on earth; high-tech house may help solve climate change issues.

May 25, 2014 · 25m

Jun 1, 2014 · 25m

Jun 8, 2014 · 25m