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The Planetary SocietyMy wife, Claire, and I have been members of the Planetary Society since its founding in 1980. I was fortunate to be working at The Jet Propulsion Laboritory when Carl Sagen, Bruce Murray and Louis Friedman founded the society. Bill Nye, “The Science Guy” and space advocate, is now CEO.

The society’s mission has changed only slightly over the years and is now:

to empower the world’s citizens to advance space science and exploration. We advocate for space and planetary science funding in government, inspire and educate people around the world, and develop and fund groundbreaking space science and technology.

So, why this post and why this title? The Planetary Society has offered a year-free domain registration with the Top-level domain (TLD) of “space” to members. Well, I needed to take advantage of that and spread the word about this TLD. Being a big Science Fiction fan, the phrase, “Per aspera ad astra” came to mind. Several variants have already been taken so I had to be a (tiny) bit creative.

Until I think of “better” content and have time to put something together, the URL, points to this blog.









MongoDB 3.0.14 binaries for Raspberry Pi 3

[UPDATE: 26 August 2017 – The binaries referenced in this post only work with Raspbian Jessie!  If you have upgraded to Raspbian Stretch on a R-Pi 3 or R-Pi 3B+, get the newer binaries]

The mongoDB documentation at states that 32-bit binaries are deprecated with release 3.2 and will be unavailable in future releases.  The latest version with 32-bit support (i.e. R-Pi with Raspbian) is 3.0.14 as of March, 2017.  I have compiled MongoDB 3.0.14 for Raspberry Pi 2 and 3.  I needed a few tweaks to the build process I used to compile 3.0.9 and associated tools. Use the installation instruction in my previous blog post to install and run MongoDB 3.0.14 on R-Pi.  The only change is to download newer files.  I have compiled MongoDB and Tools with the SSL flag — so the SSL option is available.


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MathTerms for iPad download spike?

MathTerms ChartI was perusing Apple iOS documentation the other day and thought I’d check my “Sales and Trends” graphs for MathTerms for iPad. Downloads have been pretty flat for the last year as I have not updated or promoted MathTerms 1.x. Much to my surprise, on May 13, 2014, there were over 50,000 downloads!

I consulted Google and Bing to see if I could determine what caused this spike. The only significant event I could find was a mention of MathTerms on Pinterest. SO… I’m not sure if this social media mention was the cause or if it was something else.

In any case, I hope the App is helping students, teachers and/or parents 😉

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MathTerms App — Privacy Policy & data practices

There has been a lot of press coverage and law-suits flying over app privacy concerns and data usage. MathTerms does not currently (in version 1.x) include a policy inside the app or on associated Help pages. Very simply put, MathTerms collects NO data on usage and has NO internet connection. I do not collect any data in any form. MathTerms does have a few links to external sites for app support and to credit content creators. These links bring up web pages in a web view but do not convey any information in doing so.

MathTerms — many holiday downloads

I did a quick look at download statistics for MathTerms at iTunes, Amazon and Barnes and Noble.  I was way surprised!  I expected  many downloads for iPad and not so much for Android.  Turns out that Barnes and Noble Nook users downloaded it over 5,000 times in December and over 25,000 times in the the last 5 months.   These numbers are very comparable to iPad installs.  Amazon Appstore installs were way behind the others.

I hope you find the MathTerms app useful.  While I do not have any immediate plans for an update, I welcome comments and suggestions

– Andy