67. Why don’t spiders get stuck in their own webs? Where do bricks that build houses come from? How long does it take to build a motorway? Ft special guest Charlie Luxton

This week we answer three questions from Orla, Reuben and Gil with the help of expert Charlie Luxton.Charlie is an architect who specialises in environmentally friendly homes.We find out how spiders manage to trap flies in their webs but don...