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.
Apple Space Gray /tablets/ipad/ipad-mini-4.html#sku=sku7730302 iPad mini 4 combines power and portability with a thin 6.1mm design weighing just 0.65 pounds. And it includes the advanced A8 chip and stunning 7.9-inch Retina display with anti-reflective coating.