Nieman Journalism Lab » Pushing to the Future of Journalism. Amazon Kindle Keyboard Shortcuts. A list of Keyboard Shortcuts for the Amazon Kindle.
 Keyboard Shortcuts Note on syntax: Keys separated by "+" should be held. Keys separated by "-" should be pressed and released.  Global Keys Alt+G refresh screen (anti-ghosting) Alt+Shift+R reboot Kindle Alt+Shift+. restart GUI and show your Serial Number with Bar code Alt+Shift+G screenshot An SD card is required to store screenshots; they are saved in .GIF format in the card's root.  Home Page Alt+Shift+M Minesweeper game (and GoMoku in Kindle3 by pressing G in Minesweeper) Alt+Z rescan picture directories Alt+T show time (does not work in Kindle 3 but you can hit Menu button to see time) Number Keys flip to entered book list page (e.g. entering 1-0 will take you to page 10) Alt+Home Open Amazon Store  Reader Alt+B toggle bookmark Alt+T spell out time (does not work in Kindle 3 but you can hit Menu button to see time) Alt+0 (zero) enable/disable slideshow (note that this will also work with text.
Alt+6 ? Junk Charts. Loyal reader John M. expressed dismay over Twitter about 538's excessive use of bubble charts.
Here's the picture that pushed John over the edge: The associated article is here. The question on the table is motivated by the extraordinary performance of a young baseball player Mike Trout. The early success can be interpreted either as evidence of future potential or as evidence of a future drought. As an analogy, someone wins a lottery. The chart shows the proportion of players who performed even better after the initial success, given the age at which they first broke out. This bubble chart is no different from others: it is impossible to judge the relative sizes of bubbles. The designer should have just replaced each bubble with an error bar, and the chart is instantly more readable. The rest of the design elements are clean and well-done, particularly use of notes to point out interesting aspects of the data. Why two seasons? This chart is excellent on many levels. Hans Rosling: Providing Data, Inspiring Change. CouchDB vs MongoDB: An attempt for a More Informed Comparison « myNoSQL.
After posting about Scott Motte’s comparison of MongoDB and CouchDB, I thought there should be some more informative sources out there, so I’ve started to dig. The first I came upon (thanks to Debasish Ghosh @debasishg) is an article about ☞ Raindrop requirements and the issues faced while attacking them with CouchDB and the pros and cons of possibly replacing CouchDB with MongoDB: [Pros] Uses update-in-place, so the file system impact/need for compaction is less if we store our schemas in one document are likely to work better.
Queries are done at runtime. Some indexes are still helpful to set up ahead of time though. Has a binary format for passing data around. Anyway while some of the points above are generic, you should definitely try to consider them through the Raindrop requirements perspective about which you can read more here. Another article comparing MongoDB and CouchDB is hosted by ☞ MongoDB docs. Update: Just found a nice comparison matrix . Graph-database.org. Visual Thinking. The art of data visualization. Neo4j open source nosql graph database »