Nina looks at different household inventions and finds out how they work. Nina asks lovely Luke, the sight neuron, to help find out how pens work. Show more
Discover 11,128,835 listings and 279,898 playable programmes from the BBC
Nina looks at different household inventions and finds out how they work. Nina asks lovely Luke, the sight neuron, to help find out how pens work. Show more
The UK's most watched and most loved channel for the under-sixes, dedicated to delighting and surprising its pre-school audience.
