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.
Bigger doesn't mean better when it comes to iPads, it seems, with the 12.9in iPad Pro down in 14th with a battery life of 9h 8m. The iPad Mini 4 performed best, with its 7.9in screen seemingly sipping power at a slower rate compared to the iPad Air 2 (9h 32m), managing a reasonable 10h 43m.