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Evelyn Mitchell
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Evelyn Mitchell

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Beautiful Number Theory
 
The beauty of numbers

The beauty of number theory is usually not visible to the eye: we may enjoy facts about primes, but we don't often see them. 

Secretly, however, modern number theory involves a lot of geometry - and Katherine Stange has found a nice way to make some of this geometry visible!

A bigger version of this picture reveals its full beauty:

http://blogs.ams.org/visualinsight/2015/03/01/schmidt-arrangement/

and here you can read an explanation of what's going on, with a link to Katherine Stange's paper - and more of her pictures!

#spnetwork #arXiv:1410.0417 #numbertheory  
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Summary An interesting method by which I found out that people were cheating on my final exam. Background I use different versions of midterm examinations to discourage cheating in my population biology class (~200 students)...
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No one wants to look bad when doing a hangout or making a Skype call...

Well here's a really cool infographic that is all about how NOT to look ugly on a webcam. 

Full size at: http://designtaxi.com/news/362377/Infographic-How-To-Not-Look-Ugly-On-Webcam/

#Infographic   #Webcam   #Hangouts  
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I just upgraded SageMathCloud to CodeMirror version 5.0.  Amazingly, this major update supports mobile Android and iOS!  So now Sage worksheets, file editing, latex editing, etc., actually works on mobile (e.g., you can scroll, copy/paste, select by touch, etc.).  

Refresh your browser to get the new version.  You can confirm you're running the version by typing this into a Sage worksheet cell and getting 5.0.1 as output: javascript('print(CodeMirror.version)')
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George Orwell's rules for a perfect cup of tea. He demands tea from India or Ceylon. I'm fond of Red Rose tea, black orange pekoe, which is not a Chinese tea. I don't drink much black tea anymore, but when I do, I dip into my stash of Red Rose. Only in Canada? Pity.
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Didn't Orwell know that proper tea is theft?
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The thing about a good example of visualization of data is that it makes you go: Ah ha!  Or hmmmm. Or omg, is that not crazy!

It is hard to get to. This visualization does that pretty well, and it is so profoundly simple. 

You've heard of the phrase "in dog years", but I doubt you really got it. I mean, really got it. this makes it easier.

Now. Go look at the x axis, find your dog/cat's age. Look at the y-axis. Marvel. Give your dog/cat a big hug. (Be careful with the cat, I'm told they don't like hugs. They accept worship though. : ))

Source: http://goo.gl/K7BnTa
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PSA/reminder:  With superfish in the news, and Lenovo hopefully having their market gutted further...

Superfish is and has been periodically embedded in certain browser plugins hosted by both mozilla and chrome for probably four years or so.

http://www.theinquirer.net/inquirer/news/2323930/google-cans-chrome-extensions-that-contained-malware

These assholes, or some asshole they pay -- buy up browser extensions and injects their shit into them so you get their crap in extension updates.

It's available as an off the self product for anyone that can get an auto update...

http://www.similarproducts.net/monetize-chrome-extension/

I've dealt with it before as a web developer in the context of encountering their broken code and strange requests in packet captures, and it came up in the previous job at least three separate times with different addons.

https://addons.mozilla.org/en-us/firefox/addon/awesome-screenshot-capture-/reviews/

Can we please get a little API protection or sandboxing around the CA Store from plugins?

It's one thing if these extensions ship with adware -- classical trojan horse scenario.  It's a whole other thing that an extension can actually change the CA store.

I understand that extensions get a level of trust -- but perhaps they should not be able  fundamentally compromise the trusted browsing experience without a little notice?
Further details from Lenovo on the Superfish disasterware have revealed how the product slipped through their approval process -- and pointed to other programs using the same badly broken Komodia software.
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Still using the Links web browser which is free of add-ons and JavaScript. G+ is surprisingly usable this way, via its Basic App feature. Main limitation is the ability to moderate the Communities which I run:

For that I'm about to fire up the Midori web browser tonight, running under an OpenBSD LiveCD. Have finally gotten comfortable with Midori's built-in NoJS feature. That replaces NoScript in my life, just as Midori has taken the place of Firefox.
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Lots of beautiful buildings.
 
History Colorado is hosting an online event in which people #Heartbomb their favorite historic building. But I had a hard time narrowing it down to just one fave. So here are 65 historic buildings of a variety of ages and types. Enjoy!
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7 areas we can improve in, as learners.
 
7 dimensions of mindset
Are you a teacher or a parent inspired by Carol Dweck's growth mindset? In that case, you may be looking for a way to help children to develop their mindset. An interesting way to do this is by a simple tool called the Mindset Works Effective Effort Rubric....
Are you a teacher or a parent inspired by Carol Dweck's growth mindset? In that case, you may be looking for a way to help children to develop their mindset. An interesting way to do this is by a simple tool called the Mindset Works Effective Effort Rubric. This is a table which, ...
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A radical new beehive design simplifies honey extraction dramatically. Kickstarter project.
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Google Street View adds Greenland Viking ruins and glacial landscapes
Wander around Greenland's landscape from the comfort of your laptop.
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Way cool!
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