Lithium

Not just Robin Hood's right hand man...

Housed within the dome of Nottingham Council House is the affectionately-nicknamed ‘Little John’ hour bell – for many years the deepest toned clock bell in the United Kingdom, weighing over 10 tonnes – whose strike can be heard for a distance of seven miles.

Of course Little John also appears in the earliest recorded Robin Hood ballads and stories, and is shown to be intelligent and highly capable.

• A soft, silvery metal. It Is the lightest metal and lightest the solid element. It reacts vigorously with water.
• The most important use of lithium is in rechargeable batteries for mobile phones, laptops, digital cameras and electric vehicles. Lithium is also used in some non-rechargeable batteries for things like heart pacemakers, toys and clocks.