Are these notorious conflict minerals still being smuggled into and laundered in Rwanda?
Tantalum & Niobium (Ta, Nb)
Gallium and Indium
LED lighting and the other electronics revolutionised by the elements Gallium and Indium
Radioactives (Po, Ra, Rn)
Radium, polonium and radon sound frightening, but are they actually useful for anything?
It's stronger than steel, but could this glamorous metal become as common as steel?
Nanotech, virtual reality, and the stuff that could oust the silicon from Silicon Valley.
Magnesium and Beryllium
Two metals with sinister reputations - one for flammability, the other for lung disease
Noble Gases (Ar, Ne, Kr, Xe)
Neon, argon, krypton & xenon: From blinding arc lights to the dying trade of sign-making.
Why copper wires? And do solar power and batteries herald the death of the old AC grid?
Hydrogen (H) - water (part 1)
Northwest India is fast running out of groundwater. Is migration and conflict inevitable?
Hydrogen (H) - water (part 2)
As climate change plays havoc with the rain, could we draw water directly from the ocean?
The self-sacrificing metal that brings shelter and good health to India's poorest.
Hydrogen (H) - energy
Is the dream of a hydrogen-fuelled zero-carbon economy achievable?
India is completely dependent on imports of potash, a fertiliser essential for crops.
This toxic metal is being phased out of our lives, but still keeps planes up in the air.
Hydrogen (H) - fusion
Could we finally be about to crack this source of potentially unlimited clean energy?
Why does iodine deficiency still blight children in developing countries like India?
The shiniest and showiest of metals has some surprisingly modern applications.
The poison in everything from paint and sweets, to telegraph polls and drinking water.
Platinum group (Pt, Pd, Ru, Rh, Os, Ir)
Six rare metals that clean the air but are the focus of violent conflict in South Africa.
This metal offers thousands of years of nuclear energy, but is it any safer than uranium?
Why do we value this useless metal? And does it bring out the worst in human nature?
In the final programme in the series we look at the rarest members of the periodic table.
Motor Neurone Disease Research in Wales
Alice Roberts looks at how scientists in Wales are at the centre of healthcare research.
Harnessing tech during conflict
Harnessing tech during conflict; why accounts have been removed by Twitter and Facebook.
Madame Lavoisier's Translation of Oxygen
Philip Ball tells the story of Madame Lavoisier, the translator of oxygen.
21/08/19 NFU concern about end of freedom of movement post-Brexit, land sharing, farming with nature
Plans to end freedom of movement on 31 October causes chaos, says farming union.
Cwmni llaeth De Arfon yn cael ei blwyddyn masnachu orau erioed.
Achos arall o ddefaid yn cael eu dwyn a’u bwtchera - y tro hwn yng Nghymru.