It wouldn’t be an OS X release without a lengthy, detailed review at Ars Technica from the hypercritical John Siracusa. Siracusa’s tenth OS X review weighs in at 24,008 words, 110 images, and 24 pages in the Web version. You can load page after page of the “canonical” Web version for free, or for $4.99, you can purchase an ebook version from the iBooks Store or Amazon’s Kindle Store. follow link
Spacebar Magnifies Photos in iPhoto '08
In iPhoto '08, you can choose whether double-clicking on a photo will edit it or magnify it. I prefer my double-clicks to edit photos, but every now and then it's nice to magnify a photo. To do that, even when double-click is set to edit, just select the photo and press the Spacebar.
- ExtraBITS for 28 October 2013 (28 Oct 13)
John Siracusa’s Review of OS X 10.9 Mavericks