Naked Scientists Podcast

Naked Scientists episode

Sat, 23rd Jun 2012

Exposing Explosives

A weapons cache is detonated at the East River Range on Bagram Airfield, Afghanistan, Dec. 2, 2004. (c) U.S. Army photo by Sgt. J. Antonio Francis.

Science and technology can catch criminals and tackle terrorism.  This week, were exploring two ways to sniff out concealed explosives and a new technique to lift fingerprints from surfaces that have been cleaned or burned.  In the news, a new way to halt Hungtington's disease and how to indentify the influential online.  Plus, could gene therapy cheat a DNA test?

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In this edition of Naked Scientists

Full Transcript

  • 01:24 - Plastics to Detect Explosives

    With the advent of global terrorism, its become apparent that people will go to extreme lengths to conceal bombs. So quickly and accurately detecting trace amounts of explosives could not only save lives, but it could make air travel safer, quicker and a lot more convenient. ...

  • 10:14 - Seeing through the Subterfuge - Spectroscopy through packaging

    Some substances, including drugs and explosives, can be concealed by dissolving them in another liquid such as an innocent looking bottle of spirits or packaging them inside an opaque container. This makes it very hard for security or border forces to find them without having t...

  • 25:43 - Identifying the Influential

    Are you a leader or are you a follower? An intriguing new study shows how you can identify influential people from their activities on Facebook...

  • 33:15 - Blocking degenerative brain disease

    Huntington's Disease, a fatal inherited degenerative brain condition, can be controlled in animals using DNA technology, suggesting it might be reversible in humans too.

  • 53:58 - Could gene therapy be used to cheat a DNA test?

    Dear Chris, a question from a podcast listener from Rio de Janeiro, Brazil: Is it theoretically possible that, in the future, a criminal could change his mouth inner layer cells DNA code (from where he knows a sample will be taken), so as not match anymore the code from the ha...

 

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