Things you can't live without
Indispensable everyday objects are celebrated in the Science Museum's exhibition 'Hidden Heroes'
As the Science Museum opens a 'Hidden Heroes' exhibition showcasing a selection of the many unsung inventions that have a subtle, yet important impact on the way we live, Time Out endorses a selection of the museum's 'hidden heroes' and adds a few of its own. What can't you live without? Let us know in the comments below
9. The pencil
Dating from the sixteenth century, the erasable pencil is the writing tool with a get-out clause. It's made of carbon though, not lead, as was once commonly supposed.