How pioneers unlocked electricity's mysteries and built strange instruments to create it.
Professor Jim Al-Khalili visits Japan to discover whether nuclear power is safe.
How the quantum world of the supersmall shaped the vast universe we inhabit today.
Professor Jim Al-Khalili sets out to discover what the universe might actually look like.
Revealing the breakthroughs which harnessed the elements' might to release vast power.
How scientists' attempts to decode the order of the elements was driven by false starts.
Alchemists questioned whether the world was made up of earth, air, fire and water.