[QUOTE=only_human;425347]..... While I am on that, recently I posted this: .[/QUOTE]
From the linked article:
[QUOTE] A 2009 [URL="http://www.bmj.com/content/339/bmj.b4471"]study[/URL] published in the [I]British Medical Journal [/I]compared income inequality (which is less extreme than wealth inequality) in the United States and 14 other wealthy countries, and found that our skewed income levels corresponded with 893,914 avoidable deaths per year compared with those other economies. That’s more unnecessary deaths than are associated with tobacco use, car accidents, and gun deaths [I]combined[/I]. [/QUOTE]....

[url]http://www.seattletimes.com/business/boeing-aerospace/massive-speedy-robots-ready-to-build-composite-wings-for-boeing-777x/[/url]

An article about the manufacturing of the new composite wings for Boeing's 777X -- the wings are completely 3D-printed, as a whole -- not pieces joined together.

[URL="https://thc.org/root/phun/unmaintain.html"]How to write obfuscated code[/URL]

[QUOTE=rogue;425695][URL="https://thc.org/root/phun/unmaintain.html"]How to write obfuscated code[/URL][/QUOTE]
For some strange reason, all our firewalls block that page :smile:

Indeed, same here. That's how obfuscated they are! ;-/
If you disregard the blockers' recommendations and go there, there is some food for thought there. But not very new.

I once disassembled (then hacked and assembled again) some java jar; it was a game client. Some light obfuscation (along the Mark's website's lines) was set out on the code, apparently by an obfuscating code mangler program. All classes had names from 'a' through 'z', and then from 'aa' through 'zz'; all methods in them, and all variables - same thing. All text constants were encoded with a simple 5-byte rotating coder (with random 5 chars in each class; then the text strings were reconstituted first thing of business during runtime). However, this whole bunch of hooey didn't deter me because they [I]couldn't [/I]obfuscate standard language constructs: for example by checking which of the ~500 classes were declared with "[URL="http://stackoverflow.com/questions/541487/implements-runnable-vs-extends-thread"]extends Thread[/URL]" (and of them which called those that did "extends Socket"), I fairly quickly located the 3-4 classes that I needed to hack first (the communication threads). Then I proceeded reading the code of the couple classes that were calling methods from these classes - essentially scanning the input comm thread, and another printing into the outgoing comm thread. After a few evenings, Bob was your uncle. So, most of that web page was not new to me.

[url]https://reddit.com/r/AskReddit/comments/45m1zl/whats_the_coolest_mathematical_fact_you_know_of[/url]

[QUOTE=ixfd64;426257][URL]https://reddit.com/r/AskReddit/comments/45m1zl/whats_the_coolest_mathematical_fact_you_know_of[/URL][/QUOTE]
It's good to see people get enthusiastic about "cool" mathematics but frustrating that if only they knew just a little more then far more cool stuff would come within their field of perception!

Here is a recent public lecture Prof. Martin Bridson gave for non-mathematicians on group theory and geometry.

(Warning: this is a 1Gbyte mp4 file downloading from Oxford in the U.K.)
[URL]https://media.podcasts.ox.ac.uk/maths/oxford-maths/2015-11-25_maths_bridson.mp4[/URL]

[url]https://cosmosmagazine.com/physical-sciences/scientists-discover-new-kind-frozen-water[/url]

It's not exactly WTF, it's not exactly boring.

[QUOTE=science_man_88;426466][URL]https://cosmosmagazine.com/physical-sciences/scientists-discover-new-kind-frozen-water[/URL]

It's not exactly WTF, it's not exactly boring.[/QUOTE]
At least they haven't stumbled on to Ice 9 as yet.

[QUOTE=science_man_88;426466][url]https://cosmosmagazine.com/physical-sciences/scientists-discover-new-kind-frozen-water[/url]

It's not exactly WTF, it's not exactly boring.[/QUOTE]

3 issues with this article:
[QUOTE]Or, cooled to -273 °C where all molecules stop moving, water would have to be compressed by a pressure equal to the weight of 300 jumbo jets at sea level.[/QUOTE]Is the weight of the jets distributed over 1 cm[SUP]2[/SUP] or 10 football pitches?

The author talks about the density of the ice, but never give an actual number.

There is no link to the original paper or any more robust source.

Here's the paper (available by open access, so no cover charge): [url]http://advances.sciencemag.org/content/2/2/e1501010.full[/url]

The catch is that's a fully theoretical paper, so the researchers didn't actually discover anything physical--they've basically put forward a possibility. That's not to denigrate theoretical work, since it often saves a bunch of experimental time and resources, but it's also only theory at this point and may or may not be practical.

Looks like the density is 0.593 g/cm^3.