And if you don't already have some cola hiding in your fridge, you can buy some for this trick without breaking the bank; one can from Aldi works out at just 60p when you buy a case of 24 for £14.49.

Korean Air Aerospace Division will upgrade 36 Lockheed Martin (Sikorsky) UH-60P helicopters in service with the Republic of Korea military with new systems (including digital cockpits) while ...