top 20 hacker news stories for 2013-04-21

Very Short Reply Expected

http://blog.vrypan.net/2013/4/21/vsre-very-short-reply-expected/

13 years ago

456 upvotes – 226 comments

Ruby is too slow for programming competitions

http://blog.clifreeder.com/blog/2013/04/21/ruby-is-too-slow-for-programming-competitions/

13 years ago

274 upvotes – 236 comments

Cognitive Overhead, Or Why Your Product Isn’t As Simple As You Think

http://techcrunch.com/2013/04/20/cognitive-overhead/

13 years ago

240 upvotes – 73 comments

The Last Question

http://filer.case.edu/dts8/thelastq.htm

13 years ago

219 upvotes – 63 comments

What's Tylenol Doing to Our Minds?

http://www.theatlantic.com/health/archive/2013/04/whats-tylenol-doing-to-our-minds/275101/

13 years ago

218 upvotes – 148 comments

Writing device drivers in Linux: A brief tutorial (2006)

http://www.freesoftwaremagazine.com/articles/drivers_linux

13 years ago

186 upvotes – 33 comments

The Clown Car Technique for Responsive Images

https://github.com/estelle/clowncar

13 years ago

★ 873 HTML MIT
181 upvotes – 32 comments

Show HN: jsdares – learning programming visually

http://www.jsdares.com/

13 years ago

177 upvotes – 39 comments

In India, 'no frills' hospitals offer $800 heart surgery

http://www.globalpost.com/dispatch/news/afp/130421/india-no-frills-hospitals-offer-800-heart-surgery

13 years ago

171 upvotes – 108 comments

Diving into AngularJS

http://floatleft.com/notebook/diving-into-angularjs

13 years ago

167 upvotes – 46 comments

A Primer on IPv4, IPv6 and Transition

http://www.potaroo.net/ispcol/2013-04/primer.html

13 years ago

134 upvotes – 123 comments

Open Sans, how do we love thee?

http://en.blog.wordpress.com/2012/10/09/open-sans-how-do-we-love-thee-let-us-count-the-ways/

13 years ago

132 upvotes – 75 comments

Factor 0.96 now available – over 1,100 commits

http://re-factor.blogspot.com/2013/04/factor-0-96-now-available.html

13 years ago

129 upvotes – 64 comments

Beautiful Pacific Crest Trail Journals

http://www.thehikeguy.com/2011/11/10/pct-moleskines/

13 years ago

124 upvotes – 24 comments

The other side of "academic freedom"

http://matt-welsh.blogspot.com/2013/04/the-other-side-of-academic-freedom.html

13 years ago

124 upvotes – 56 comments

Brian Kernighan's Advanced Programming Techniques Class at Princeton

http://www.cs.princeton.edu/courses/archive/spring13/cos333/

13 years ago

121 upvotes – 38 comments

The Deadly Corruption of Clinical Trials

http://www.motherjones.com/environment/2010/09/dan-markingson-drug-trial-astrazeneca

13 years ago

111 upvotes – 59 comments

‘Human computer’ Shakuntala Devi has died

http://www.thehindu.com/news/national/karnataka/mathematical-genius-shakuntala-devi-no-more/article4640134.ece

13 years ago

107 upvotes – 29 comments

What Makes Rain Smell So Good?

http://blogs.smithsonianmag.com/science/2013/04/what-makes-rain-smell-so-good/

13 years ago

107 upvotes – 23 comments

Nikola Tesla’s Predictions for the 21st Century

http://blogs.smithsonianmag.com/paleofuture/2013/04/nikola-teslas-amazing-predictions-for-the-21st-century/

13 years ago

106 upvotes – 32 comments
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