Andrea Sella, Professor of Chemistry at UCL, celebrates five elements that enhance our lives. Today he admires how strontium gives us red fireworks and reveals our ancestors' past. Show more
Discover 11,128,835 listings and 278,128 playable programmes from the BBC
Andrea Sella, Professor of Chemistry at UCL, celebrates five elements that enhance our lives. Today he admires how strontium gives us red fireworks and reveals our ancestors' past. Show more