Entropy and Biodiversity
Some time ago I stumbled upon a post on n-Category Café (which is, by the way, a blog that is definitely worth reading); here is part 1 and part 2. The post introduces the concepts of entropy and diversity (and cardinality) in the field of biology. While I’m acquainted with the definition of entropy in information theory (and, slightly less, physics), I found really beautiful that those...
Solar Charger for your smartphone
I recently bought a Guide10 Adventure Kit solar panel from Goal0. The kit includes a Nomad7 solar panel and a battery pack with 4 AA NiMh batteries. Since I needed it in time for the Chaos Communication Camp, and didn’t found a vendor in Europe, this was a good chance to test Borderlinx, a forwarding service that provides you an US address if you live outside USA. So here are my opinions...
Stuxnet: Anatomy of a Computer Virus (on Vimeo)
On wisdom of crowds, or collective intelligence.
A nice introduction to collective intelligence, and why sometime it fails. […] The good news is that the wisdom of crowds exists. When groups of people are asked a difficult question—say, to estimate the number of marbles in a jar, or the murder rate of New York City—their mistakes tend to cancel each other out. As a result, the average answer is often surprisingly accurate. But...
Yuri Gagarin's First Orbit
This week marks 50 years since Yuri Gagarin climbed into his space ship and was launched into space. It took him just 108 minutes to orbit Earth and he returned as the World’s very first space man. To mark this historic flight we have teamed up with the astronauts onboard the International Space Station to film a new view of what Yuri would have seen as he travelled around the...
[Review] Running app for Android
I’m a newbye runner. Last winter I started the C25k program and now I’m able to steadily run 5 km (I won’t disclose the time though☺), so I searched for an Android App to record the time spent, the route I took and a few other stats. After a brief search I restricted the set of candidates to three applications, namely Cardiotrainer, Endomondo and Runkeeper Pro, and tried...
Once in a while a mutation of bacteria resistant to new kinds of antibiotic drugs surfaces, both in developed countries, where the medical standards are supposed to be higher, or in developing countries where the spreading of disease is easier. The last of such occurence is reported in the April issue of Scientific American and summarized here. Every time I read of the discover of so called...
Computational Complexity: An unusual Voting Scheme
Monday, March 28, 2011 An unusual Voting SchemePosted by GASARCH (I want to thank Bobby Kleinberg for bringing this to my attention.) Consider the following voting scheme Choose a random person A1. A1 chooses a set at random of 30 people. Call the set A2. Choose a random set of 9 from the 30 in A2. Call this set A3. The members of A3...
“The fact that a believer is happier than a skeptic is no more to the point than the fact that a drunken man is happier than a sober one.” George Bernard Show
Villa della Regina - Torino - a set on Flickr
Iranian hackers obtain fraudulent HTTPS...
Iranian hackers obtain fraudulent HTTPS certificates: How close to a Web security meltdown did we get? Technical Analysis by Peter Eckersley On March 15th, an HTTPS/TLS Certificate Authority (CA) was tricked into issuing fraudulent certificates that posed a dire risk to Internet security. Based on currently available information, the incident...
Torino - OGR Italia150 - a set on Flickr
Parma - a set on Flickr
2000 as Seen in 1910 (23 pics)
Don't go outside
via seanbonner.tumblr.com Urban Sql injection
The Open Internet: A Case for Net Neutrality
A Guide to the Open Internet Network neutrality is the idea that your cellular, cable, or phone internet connection should treat all websites and services the same. Big companies like AT&T, Verizon, and Comcast want to treat them differently so they can charge you more depending on what you use. The Federal Communications Commission (FCC) is currently...
GOOD.is | The Almighty Dollar
Map of Metal
Don’t bother to write me for the next couple of weeks, I’m loosing myself inside the map of metal :) http://mapofmetal.com
HTTPS Everywhere | Electronic Frontier Foundation
via eff.org The 0.9.0 release of HTTPS Everywhere is a new beta version designed to offer improved protection against Firesheep. Most notably, it can provide much better protection for Facebook, Twitter and Hotmail accounts, as well as completely new protection for bit.ly, Dropbox, Amazon AWS, Evernote, Cisco and Github.
Remembering Jonathan B. Postel
postel.org Posted via email from Hiraedd’s posterous | Comment »
10 War Photographs That Changed the World Forever
via brainz.org Posted via email from Hiraedd’s posterous | Comment »