Monthly Archives: October 2013

how to create an iPad video kiosk

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I was recently tasked with building an iPad floor display that would loop a series of video clips indefinitely in a public place. Surprisingly, it’s not very obvious how to do this, and the third-party applications for looping video don’t work, are expensive, or show ads on the screen while the video plays.

The following solution requires no extra software or apps at all.

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movement of new yorkers over 24 hours

Visualization based on check-ins from Foursquare, a location-based social network.

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teen birthrate vs. abstinence-only education and income



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the cost of excessive alcohol use in Wisconsin

A “sobering” report recently published from the University of Wisconsin’s Population Health Institute pegs the annual economic cost of excessive alcohol use at Wisconsin $6.8 billion.

Here are the numbers on Dane County alone:

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Full report:

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Internet Explorer use vs. murder rate

Just sayin’…


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really, Microsoft?

This is what I get for selecting “[none]” watermark in Microsoft Office’s Print dialogue box…

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visualizing digital information storage volumes

I saw that 4 terabyte 3.5″ hard disks have recently become available for $169, which made me ruminate on how much data that actually is, and how far storage density has come. My first few computers used 1.44MB floppy disks, so that’s my frame of reference. I also spent many hot summers in the mid 90s mowing lawns to afford 44MB SyQuest removable hard disk cartridges, which cost about $1.00 per megabyte. In comparison, a megabyte on the 4 TB drive costs $0.00004 at this time of this writing (10/7/2013).

To visualize this, I have generated these charts to illustrate prospective. The unit by which I chose to measure storage is the 1.44MB floppy disk, since they are so familiar to me. These are the heights of floppy disk stacks (at 3mm per diskette)  it would take to equate to modern storage mediums. I hope this gives you some appreciation for the volume of data capable of being stored and processed by modern systems.


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