The Fluid Filled Cochlea. The pressure changes in the cochlea caused by sound entering the ear travel down the fluid filled tympanic and vestibular canals which are filled with a fluid called perilymph.
Those who love the size of the original iPad Mini 1 will be pleased to find that the size remains unchanged. Both the iPad Mini 1 and the iPad Mini 2 both measure in with a height of 7.87 inches and a width of 5.3 inches. The iPad Mini has only a slight difference in depth, while it weighs slightly more. However, it is still lightweight enough for anyone who wants a small and portable tablet.
On 23rd of October 2012 Apple announced a mildly controversial tablet, iPad Mini. While all the producers went for bigger size displays, Apple turned the game around and went smaller with this new device. The display of iPad Mini measures 7.9 inches (200 mm). It is also a multi-touch display using the same LED technology (the resolution is 1024 x 768 pixels at 163 ppi).