Calculus Textbook by James Stewart

Calculus 5th Edition bt James Stewart

I read the news just today that James Stewart, the mathematician who authored books on Calculus, died on December 4th, 2014.

I took a look at my bookshelf and immediately found a Calculus Textbook that Stewart authored. Stewart was a violinist and that explains why his books feature violin on the cover.

Ars Technica Asks Readers to Change Password Following Security Breach

Ars Technica

Due to the recent hack on the website, Ars Technica “strongly encourages all Ars readers — especially any who have reused their Ars passwords on other, more sensitive sites — to change their passwords today.”

Full Email:

Ars Technica was hacked: Please change your password

You are receiving this email because you may have – at some point – registered as a user on ArsTechnica.com. Our site was recently hacked.

Log files suggest that this intruder had the opportunity to copy the user database. This database contains no payment information on Ars subscribers, but it does contain user e-mail addresses cryptographically-protected passwords.

Out of an excess of caution, we strongly encourage all Ars readers — especially any who have reused their Ars passwords on other, more sensitive sites — to change their passwords today.

Read more about the incident here: http://arstechnica.com/staff/2014/12/ars-was-briefly-hacked-yesterday-heres-what-we-know/

Please login to Ars and update your password or use the “Forgot your password” form to change your password.

Settings page: https://arstechnica.com/civis/ucp.php?i=profile&mode=reg_details

Forgot your password? https://arstechnica.com/civis/ucp.php?mode=sendpassword

We sincerely apologize for any inconvenience this has caused.

– Ars

To paraphrase Al Bundy: “Hey! Come to think of it, I remember creating an account at Ars Technica.”

Thanksgiving, 2014

Thanksgiving Dinner

Thursday, November 27, 2014 is Thanksgiving Day; the beginning of Thanksgiving Weekend.

We’re all spending times with our family and friends and will be back on Monday, December 1, 2014.

What The Hell, Twitter?

Twitter App Graph

Jack Marshall, writing for WSJ.com:

Twitter is now collecting information about the apps installed on users’ devices in order to better target and tailor advertising and other content to them.

WHAT?!

From Twitter:

To help build a more personal Twitter experience for you, we are collecting and occasionally updating the list of apps installed on your mobile device so we can deliver tailored content that you might be interested in.

DFQ?!

If you’re not interested in a tailored experience you can adjust your preferences at any time (read below). Additionally, if you have previously opted out of interest-based ads by turning on “Limit Ad Tracking” on your iOS device or by adjusting your Android device settings to “Opt out of interest-based ads,” we will not collect your apps unless you adjust your device settings.

I have always enabled the “Limit Ad Tracking” option on all of my iOS devices.

iOS Privacy Settings: Limit Ad Tracking