Ask HN: Good software for interactive exploration of quantum/particle physics? 10 years ago
There's an iPad app called "The Particles". Last update was in 2013 though.
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viktorsr
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Developer in Barcelona. Interested in node.js, Ruby, Solr, Hadoop, HBase, and new and old technologies in general.
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Last time I benchmarked Puma on MRI 1.9 and 2.0 it was quite fast for most requests, but some requests took more than 20 seconds to complete. The bottom line being that it would be nice to see full ab output.
Announcing Evan's Awesome A/B Tools 13 years ago
MixPanel's Split Test calculator supports multiple groups, but doesn't have anything visual:
https://mixpanel.com/labs/split-test-calculator
They use two-proportion z-test.
When EC2 Hardware Changes Underneath You 14 years ago
I wrote about hardware change issue and a couple of related issues a while ago: http://www.rotanovs.com/cloud/amazon-ec2-failures/
Also, to clarify, hardware change occurs when you stop an instance (which frees it, so it can be taken by another customer), and then start a new one using the same EBS volumes.
Only first two chapters ("Strategies in problem solving" and "Examples in number theory") are available for free, so I took the second one as a title because it has some brilliant strategies.
Show HN: visual search web designers 15 years ago
Works fine in Chrome 14.0.835.163/Mac OS 10.7.1.
Keyboard shortcuts are inconsistent in Ubuntu.
On Mac, Cmd-C always means Copy (even in Google Docs), and Ctrl-C does what it should in Terminal. Compare that to Gnome's use of Ctrl-C in all apps except for terminal, where you have to press 3 keys (Ctrl-Shift-C) at once.
Go to line is Ctrl-G, Ctrl-L, and Ctrl-I in different editors.