How do they dry out those little bits of banana that you get in those packets of mixed dried fruit ? If you leave a banana for any length of time it goes all black & mangy, yet that dried stuff stil...
Anyone who has seen Tony Robsinson in Channel 4's 'Time Team' will have seen old roman ruins' etc buried under about 6 inches orabout 4 foot of earth! How come it vaires so much I would have thought...