I often lament the state of computer displays. Presently, they are for the most part married to a particular number of \u201cpixels per inch.\u201d This MacBook Pro, for example, has a 110 PPI display, which affects the size of everything on my screen. Back in the 80\u2019s, Mac displays were a mere 72 PPI, and most computers nowadays are 96. Therefore, an image that is 100×100 pixels will appear to be a different size on each of these different types of displays.<\/p>\n
Which is maybe fine. But there are some times when you want to make everything a bit larger. Maybe your eyes are tired, or you have poor vision, or you just think it would look better. The MacBook Air, in fact, allows a \u201cpinch and zoom\u201d gesture on its track pad, which you can use to enlarge photographs, or even a web page. The problem is, Apple\u2019s Safari browser doesn\u2019t actually let you zoom in the way you\u2019d expect. The pinch and zoom gesture merely enlarges the text size. This often ruins the page layout, and doesn\u2019t enlarge images or anything else on the page.<\/p>\n
Apple knows how to handle this! If you \u201cdouble tap\u201d on a section of a web page on an iPhone (which runs a version of the Safari browser), you zoom in perfectly. It\u2019s just as if you\u2019ve leaned forward to look at a section of the page. It works wonderfully, and it\u2019s a shame that my Mac can\u2019t do the same thing (yet).<\/p>\n