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Explosions: How we shook the world

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Posted under Chemistry

Bang Goes The Theory's Jem Stansfield is used to creating explosions, but for this explosions special he explores how we have learned to control them - and harness their power for our own ends.

11 Oct
2010

You need the Flash Player (version 7 or higher) to view this clip - download Flash. http://media.open2.net/bang/explosions/explosiontrail.flv Copyright BBC

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From recreating a rather dramatic ancient Chinese alchemy accident to splitting an atom in his own home-built replica of a 1930s piece of equipment, Jem reveals the science behind explosions and investigates how we have learned to control them and use their power throughout history.

He goes underground to show how gunpowder was used in the mines of Cornwall, recreates the first test of guncotton in a quarry with dramatic results and visits a modern high explosives factory with a noble history.

Ground-breaking high speed photography makes for some startling revelations at every step of the way.

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James Hudson

Most of the stuff in this programme, I learned in company explosive awareness lectures.  I learned nothing new from this programme.  The establishment of this country is paranoid about the general public having access to knowledge of explosives.  Although the information is all there in the programme; the public is unlikely to learn anything enlightening.  This is probably intentional.  The information is all jumbled up to make it difficult to learn anything.  I asked myself a question while I watched this programme; 'if I didn't know how explosives worked; could I learn it from this programme' .  The answer is NO.  This is all good boom--- bang---flash video show.  The presenter's presentation style was patronising; like it was made for children.
james hudson

Dangerous Knowledge !

Neil Jones

I watched this episode on the BBC and thought it was brilliant and very, very informative. On the negative side and in the current climate we live in, I thought it was too informative giving the secrets of how to make explosives and bombs. I would like to hear other people's pespectives on this issue, overall I was fascinated and thought it was a great programme.

What are you afraid of ?.  In

James Hudson

What are you afraid of ?.  In America, ordinary citizens are allowed to buy explosives and all the materials to produce their own propellants and explosives.  The climate you talk about is presumeably Terrorist ; if America can lead the fight against terrorism with their very laxed approach to citizen knowledge: why should this knowledge frighten you so much.  The terrorist are all issued with a personal copy of the terrorist handbook (freely available in most countries) they don't need to rely on TV programmes.  As for the idiots who seem determined to lose an eye or a hand playing with gunpowder; they will continue to learn the hard way.  My main criticism of your comment is that you are far more likely to die in a car accident or have your house ceiling fall on your head than from a terrorist bomb.  When we had the IRA bombing campaigns; their bombs were going off nearly every day.  Nowadays; terrorism is 99.99% hype.  We've only had one serious bomb incident since the IRA campains.  The bombs used in that attack were peroxide based, not black powder or plastic.  Controlling the problem by the restriction of knowledge is the old Alchemy approach; not the scientific way.

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Monday, 11th October 2010
Monday, 11th October 2010

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• Body text - Copyrighted: The Open University | BBC
• Video - Copyright: BBC

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