The ingenious device applies fierce heat and pressure to the 'source material', ageing it and turning it into a thick, crude oil.

Then follows the attachment of the 'twitch', an ingenious device consisting of a length of broomstick with a loop of bailing twine at one end.

They must also monitor their rebreathers, ingenious devices that remove carbon dioxide from exhaled breath and replace it with specific levels of oxygen.

We can be snooped upon, 24 hours a day, through the medium of those various ingenious devices that we have acquired to make our lives ever-more comfortable.

With hopes of raising $10,000, churches were encouraged to build ingenious devices in which to gather your pennies.