Sniffing out Cancer
We delve into the mystery behind the science of canine high-powered scent detectors and ask if dogs can smell cancer.
13 Dec 2014 11:52 GMT
Women fight breast cancer stigma
Debunking the myths of cancer
Cancer: a primer
Are health claims for the new generation of e-cigarettes true, or are they a smokescreen?
'Voice message banking' lets ALS patients speak in their own voices even after they lose the ability to talk.
In the US state of Colorado, marijuana is being used to help children suffering from epileptic seizures.
Examining technology that could potentially bring animals back from extinction.
We explore how new techniques in forensic science can influence the ways we solve crimes.
TechKnow explores a new technology which could be a game-changer in the organ retrieval process.
We meet two US scientists who have made a groundbreaking discovery that could turn back the cardiac clock.
We explore the future of genetic sequencing and how it is poised to change healthcare from being reactive to proactive.
TechKnow's entomologist contributor goes on a journey of scientific discovery, tracking spiders in the Peruvian Amazon.
How scientists in the US are attempting to keep football players safer from concussions.
Previous season
NASA's flying science lab cruises the skies over fracking fields and oil rigs to measure their impact on climate change.
Using technology developed for the battlefield, bulletproof backpacks and whiteboards make their way into classrooms.
We explore high-tech methods to artificially inseminate honey bees, which are dying in record numbers.
TechKnow meets the recipient of a full facial transplant and the doctors whose innovative surgery saved her life.
TechKnow examines breakthroughs in mobility technology and cancer screening.
We investigate a new device that allows hearts and other organs to live outside the body.

TechKnow is a weekly series that explores how the latest scientific discoveries are changing our lives. Our group of young, tech-savvy contributors use their diverse backgrounds in science and technology to expose the controversies and celebrate the accomplishments of innovative breakthroughs in the US and around the world.

Marita Davison
Biologist and communicator
Marita specialises in how human activities affect individual species and the ecosystems they call home. Born in the US and raised in Bolivia, Marita is an expert in bird ecology and has a wide range of experience in the education and development sectors. She holds an MSc from Cornell University and is the co-founder of Habitat Seven, a media lab that works with science organisations.

Follow her on Twitter: @MaritaDavison
Dr Crystal Dilworth
Crystal received a PhD in Chemistry from Caltech where she researched the molecular basis of nicotine dependence under the aegis of Professor Henry A Lester. In her past lives Crystal has been a violinist, a nationally ranked rhythmic gymnast, and a professional dancer/choreographer.

Follow her on Twitter: @PolyCrystalhD
Kosta Grammatis
Kosta previously worked at SpaceX, the innovative company founded by Elon Musk (TESLA). His areas of expertise include everything from designing and building satellites to creating bionic eyes.

Follow him on Twitter: @KGram
Kyle Hill
Science writer
Kyle is a science communicator who specialises in finding the secret science in your favourite fandom. He writes for the Scientific American Blog Network at But Not Simpler, and contributes to Slate, Wired, Nature Education, Popular Science and io9. He manages Nature Education's Student Voices blog, is a columnist for Skeptical Inquirer.

Follow him on Twitter: @Sci_Phile
Lindsay Moran
Former CIA operative and analyst
The analyst and author of Blowing My Cover: My Life as a CIA Spy is a graduate of Harvard and Columbia universities and a former Fulbright Scholar. Today, Lindsay is a freelance writer, consultant and commentator on issues related to security and human intelligence; she also serves as a facilitator for scientific consortiums.

Follow her on Twitter: @LindsayMoran
Rachelle Oldmixon
Rachelle has a BA from Skidmore College and an MA from UC Santa Barbara. Her diverse experiences in neuroscience, psychology, biology, cognition, and genetics have left Rachelle with an inter-disciplinary view of the natural world. To keep a balance in her own life, Rachelle enjoys training in martial arts and working with American artists

Follow her on Twitter: @RachelleIsHere
Shini Somara
Mechanical engineer
A mechanical engineer with a doctorate in computational fluid dynamics from London’s Brunel University. She has appeared on BBC America, BBC1, BB2, Discovery International and Sky One, worked in TV production and as a catwalk model, studied classical ballet at the Royal Academy of Dance and hiked Mount Kilimanjaro.

Follow her on Twitter: @ShiniSomara
Cara Santa Maria
With a degree in neurobiology and a background in teaching, Cara Santa Maria makes science education fun and accessible. She has appeared on many major news outlets including CNN, The Huffington Post and the Weather Channel. She is also the co-host of Pivot TV's Take Part Live. See more of Cara's work at CaraSantaMaria.com

follow her on Twitter: @CaraSantaMaria
Phil Torres
Conservation biologist
His expertise may be entomology, or the scientific study of insects, but Phil's interests are as wide and varied as the vast Amazon forest where he spends many of his days. His scientific discoveries have made international news and been featured on National Geographic, CNN, MSNBC, Wired and more, and he has also appeared on Animal Planet, Discovery Channel, and the BBC.

follow him on Twitter: @phil_torres