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Gold (Au)

Why do we value this practically useless metal so highly? And does it bring out the worst in human nature? In a second look at this most coveted of metals, Justin Rowlatt hears both sides of the age-old argument. Swiss investor and gold enthusiast Marc Faber explains why he keeps gold bars tuck…

Obscure Elements

In the final programme in our Elements series, Justin Rowlatt looks at the rarest and oddest members of the periodic table. Selenium, bismuth, molybdenum, antimony, rhenium, hafnium, zirconium, tellurium, thallium, barium. What are they? And what are they used for? Minor metals merchant Anth…
Six extremely rare metals that clean your car exhaust and turbocharge industrial chemistry, but which are also the focus of a violent power struggle in South Africa. Presenter Laurence Knight heads to Johnson Matthey, a company that pioneered the car catalytic converter in the 1970s, to find out…

Arsenic (As)

The macabre poison we know from crime novels and history books has some surprising modern uses. Justin Rowlatt travels the Subcontinent - first to India's Forest Research Institute in the Himalayas where Sadhna Tripathi explains why the chemical element ends up in telegraph polls. We then hea…
Ansvarsfraskrivelse: Podcasten og kunstværket, der er indlejret på denne side, er fra BBC World Service, som tilhører dens ejer og ikke er tilknyttet eller godkendt af Listen Notes, Inc.