Size Matters (2018) - Season 1 Episode 2 -

Dr Mark Miodownik zooms into the microscopic world beneath our fingertips, where strange forces dominate the world and common sense goes out of the window. He reveals how this world can make objects behave like magic and discovers the secrets of the extraordinary metals that make jet engines possible. Mark reveals why chocolate is one of the most sophisticated and highly engineered materials on the planet, using special crystals designed to melt in the mouth, and he looks forward to new era of self-healing materials.