Peter Woit has just made the final draft (dated 10/25/16) of his new textbook Quantum Theory, Groups and Representations: An Introduction freely available for download from his website. It covers quantum theory with a heavy emphasis on groups and representation theory and “contains significant amounts of material not well-explained elsewhere.” He expects to finish up the diagrams and publish it next year some time, potentially through Springer.
I finally have finished a draft version of the book that I’ve been working on for the past four years or so. This version will remain freely available on my website here. The plan is to get professional illustrations done and have the book published by Springer, presumably appearing in print sometime next year. By now it’s too late for any significant changes, but comments, especially corrections and typos, are welcome.
At this point I’m very happy with how the book has turned out, since I think it provides a valuable point of view on the relation between quantum mechanics and mathematics, and contains significant amounts of material not well-explained elsewhere.
Not a day goes by that I don’t run across a fantastic blog built or hosted on WordPress that looks gorgeous–they do an excellent job of making this pretty easy to accomplish.
but…
Invariably the blog’s author has a generic avatar (blech!) instead of a nice, warm and humanizing photo of their lovely face.
Or, perhaps, as a user, you’ve always wondered how some people qualified to have their photo included with their comment while you were left as an anonymous looking “mystery person” or a randomized identicon, monster, or even an 8-bit pixelated blob? The secret the others know will be revealed momentarily.
Which would you prefer?
Identicon: A face only the internet could loveChris: a face only a mother could loveAn example of a fantastic blog covering the publishing space, yet after 11,476 articles, the author can’t get his photo to show up.
Somehow, knowing how to replace that dreadful randomized block with an actual photo is too hard or too complicated. Why? In part, it’s because WordPress separated out this functionality as a decentralized service called Gravatar, which stands for Globally Recognized Avatar. In some sense this is an awesome idea because then people everywhere (and not just on WordPress) can use the Gravatar service to change their photo across thousands of websites at once. Unfortunately it’s not always clear that one needs to add their name, email address, and photo to Gravatar in order for the avatars to be populated properly on WordPress related sites.
(Suggestion for WordPress: Maybe the UI within the user account section could include a line about Gravatars?)
So instead of trying to write out the details for the third time this week, I thought I’d write it once here with a bit more detail and then point people to it for the future.
Another quick example
Can you guess which user is the blog’s author in the screencapture?
The correct answer is Anand Sarwate, the second commenter in the list. While Anand’s avatar seems almost custom made for a blog on randomness and information theory, it would be more inviting if he used a photo instead.
How to fix the default avatar problem
What is Gravatar?
Your Gravatar is an image that follows you from site to site appearing beside your name when you do things like comment or post on a blog. Avatars help identify your posts on blogs and web forums, so why not on any site?
Need some additional motivation? Watch this short video:
[wpvideo HNyK67JS]
Step 1: Get a Gravatar Account
If you’ve already got a WordPress.com account, this step is easy. Because the same corporate parent built both WordPress and Gravatar, if you have an account on one, you automattically have an account on the other which uses the same login information. You just need to log into Gravatar.com with your WordPress username and password.
If you don’t have a WordPress.com account or even a blog, but just want your photo to show up when you comment on WordPress and other Gravatar enabled blogs, then just sign up for an account at Gravatar.com. When you comment on a blog, it’ll ask for your email address and it will use that to pull in the photo to which it’s linked.
Step 2: Add an email address
Log into your Gravatar account. Choose an email address you want to modify: you’ll have at least the default you signed up with or you can add additional email addresses.
Step 3: Add a photo to go with that email address
Upload as many photos as you’d like into the account. Then for each of the email addresses you’ve got, associate each one with at least one of your photos.
Example: In the commenters’ avatars shown above, Anand was almost there. He already had a Gravatar account, he just hadn’t added any photos.
Step 4: Fill out the rest of your social profile
Optionally you can additional social details like a short bio, your other social media presences, and even one or more websites or blogs that you own.
Step 5: Repeat
You can add as many emails and photos as you’d like. By linking different photos to different email addresses, you’ll be able to change your photo identity based on the email “key” you plug into sites later.
If you get tired of one photo, just upload another and make it the default photo for the email addresses you want it to change for. All sites using Gravatar will update your avatar for use in the future.
Step 6: Use your email address on your WordPress account
WordPress screenshot of admin panel for user information.
In the field for the email, input (one of) the email(s) you used in Gravatar that’s linked to a photo.
Don’t worry, the system won’t show your email and it will remain private–WordPress and Gravatar simply use it as a common “key” to serve up the right photo and metadata from Gravatar to the WordPress site.
Once you’ve clicked save, your new avatar should show up in the list of users. More importantly it’ll now show up in all of the WordPress elements (like most author bio blocks and in comments) that appear on your site.
Administrator Caveats
WordPress themes need to be Gravatar enabled to be able to use this functionality, but in practice, most of them do, particularly for comments sections. If yours isn’t, then you can usually add it with some simple code.
In the WordPress admin interface one can go to Settings>>Discussion and enable View people's profiles when you mouse over their Gravatars under the heading “Gravatar Hovercards” to enable people to see more information about you and the commenters on your blog (presuming the comment section of your theme is Gravatar enabled.)
Some WordPress users often have several user accounts that they use to administer their site. One might have a secure administrator account they only use for updates and upgrades, another personal account (author/editor admin level account which uses their name) for authoring posts, and another (author/editor admin level) account for making admin notice posts or commenting as a generic moderator. In these cases, you need to make sure that each of these accounts has an email address with an an associated Gravatar account with the same email and the desired photo linked to it. (One Gravatar account with multiple emails/photos will usually suffice, though they could be different.)
Example: In Nate’s case above, we showed that his photo didn’t show in the author bio box, and it doesn’t show up in some comments, but it does show up in other comments on his blog. This is because he uses at least two different user accounts: one for authoring posts and another for commenting. The user account he uses for some commenting has a linked Gravatar account with email and photo and the other does not.
One account doesn’t have a Gravatar with a linked email and photo.
Want more information on how you can better own and manage your online identity? Visit IndieWeb.org: “A people-focused alternative to the ‘corporate web’.”
TL;DR
To help beautify your web presence a bit, if you notice that your photo doesn’t show up in the author block or comments in your theme, you can (create and) use your WordPress.com username/password in an account on their sister site Gravatar.com. Uploading your preferred photo on Gravatar and linking it to an email will help to automatically populate your photo in both your site and other WordPress sites (in comments) across the web. To make it work on your site, just go to your user profile in your WordPress install and use the same email address in your user profile as your Gravatar account and the decentralized system will port your picture across automatically. If necessary, you can use multiple photos and multiple linked email addresses in your Gravatar account to vary your photos.
📖 33.0% done with A Bear Called Paddington by Michael Bond
The plot moves somewhat slowly and the action is mostly what one would expect from a 5 or 6 year old–except that it’s a bear–but the charming language and the way in which is told makes all the difference.
Hundreds of researchers in a collaborative project called "It from Qubit" say space and time may spring up from the quantum entanglement of tiny bits of information.
Finished the section on the IPO of China Telecom (Hong Kong) and read through the more difficult IPO of PetroChina. There are some conflicting statements between the two accounts which I find interesting as they relate to doing business in general. I’m sure they stem, in part, from retelling the stories nearly 20 years later along with editorial oversight. In the first account he complains of not having enough time while in the second he complains of a client dragging things out and going too slowly.
The retelling of history from his perspective is perhaps a bit too measured but expected given that he’s still actively working and maintaining an image. There are a few interesting bon mots from time to time, but I’m beginning to think that reading a bit more hard-hitting history would be more enlightening given what I know of China. I’m beginning to read this more for enjoyment and entertainment that the original historical and economic visions I had anticipated.
While a generally interesting read so far, I find it to be a bit too antiseptic as if it’s either been over-edited or the ghost writer watered down all the personality.
📖 47.0% done with A Bear Called Paddington by Michael Bond
Chapter Four: A Shopping Expedition
“I’ll have one for worst if you like,” he said. “that’s my best one!”
Highlight (yellow) – Location 468
Paddington had a very persistent stare when he cared to use it. It was a very powerful stare. One which his Aunt Lucy had taught him and which he kept for special occasions.
Highlight (yellow) – Location 478
Bears were rather unpredictable. You never quite knew what they were thinking, and this one in particular seemed to have a mind of his own.
Highlight (yellow) – Location 492
“I think,” said Paddington, “if you don’t mind, I’d rather use the stairs.”
Presentation: Summarizing archival collections using storytelling techniques Michael Nelson, Ph.D., Old Dominion University
What Have We Heard?
Lanyard and ID badge from DtMH2016
Panel: Why save online news? Chris Freeland, Washington University; Matt Weber, Ph.D., Rutgers, The State University of New Jersey; Laura Wrubel, The George Washington University; moderator Ana Krahmer, Ph.D., University of North Texas
Slide from Technology and community: Why we need partners, collaborators, and friends Kate Zwaard, Library of Congress
Architectural detail in Powell Library at UCLA
What does Peter Arnett, the most daring journalist of the past century, do to unwind? He reads comic books of course.
Presentation: Technology and community: Why we need partners, collaborators, and friends Kate Zwaard, Library of Congress
Keynote speaker: Digital salvage operations — what’s worth saving? Hjalmar Gislason, vice president of data, Qlik and Deaf Teddy
Greetings from Ginny Steel, university librarian, UCLA
Special guest speaker: Saving the first draft of history: The unlikely rescue of the AP’s Vietnam War files Peter Arnett, winner of the Pulitzer Prize for journalism
“Hi there Tiiiigggggrrr!” Edward McCain, digital curator of journalism, Donald W. Reynolds Journalism Institute (RJI) and University of Missouri Libraries warmly greets the participants of DtMH2016
What's in a blog?
"What's in a name? That which we call a rose
By any other name would smell as sweet." - Romeo and Juliet
Late last night I got into a… - Mike Elgan - Google+
Today, we’re excited to announce that Instapaper is joining Pinterest. In the three years since betaworks acquired Instapaper from Marco Arment, we’ve completely rewritten our backend, overhauled our mobile and web clients, improved parsing and search, and introduced tons of great features like highlights, text-to-speech, and speed reading to the product.
"True story," Matthew Lewis, a communications strategist based in San Francisco, told me recently over Twitter. "I put the 'k' in fracking."
As best I can verify, he is correct. I'd always wondered how the term "fracking," which has dominated energy discussions for years, worked its way into our vocabulary. And the backstory turns out to be pretty interesting.
Can you guess which user is the blog’s author in the screencapture?
Clara Moskowitz
Weaverbot
