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Tech Tips, Tricks & Trivia

by 'Anil' Radhakrishna
A seasoned developer's little discoveries and annotated bookmarks.

Search from over a hundred HOW TO articles, Tips and Tricks


TWIL - Week #23


This Week I Learned:

Azure

+ If you own a MSDN subscription you can use up to your monthly Windows Azure credits at no charge. If you exceed your monthly credits, your service will be disabled for that month. I found out the hard way that the 10 "free" Azure Web Sites that you get will be disabled too if you exceed the limits of any of feature categories. For testing, if you activate the Azure SQL Reporting feature that comes as a MSDN benefit, make sure you stop it after you finish testing or else it will count towards your quota limit.

A Windows Azure CDN customer's traffic may not be served out of the physically "closest" node; many factors are involved including routing and peering, Internet "weather", and node capacity and availability.

Web Development

+ With the Emulation tool in Internet Explorer 11 F12 developer tools you can simulate a GPS receiver and enter GPS coordinates to test location-aware features in a webpage.

conditioner.js is a JS library for loading and unloading behavior based on environment conditions

HTML 5 web app vs Native mobile apps - HTML5 does give you some access to your phone's sensors, such as Geolocation (GPS) support; and some access to your phone's operating system, such as Web Storage. But the bottom line is, there's far more denied to you than made available to you. And we should point out, the most innovative mobile apps tend to take advantage of the phone's hardware and operating system.

+ Taking advantage of the fact that Rovio uses HTML5′s LocalStorage to cache game files, web developer Wes Bos hacked the Chrome version of Angry Birds to gain access to all of the levels. LocalStorage is editable by the user, it's similar to the cookies.


+ basket.js supports locally caching scripts in any browser with localStorage capabilities.
Tools

Chrome Sniffer is a Chrome extension that is capable of identifying more than 100 popular content management systems and JavaScript libraries  running on a website that is being accessed in the browser.

+ VLC Media Player can convert MP4, FLV files to MP3 as well as handle conversion between many other formats

Health

+ There hasn’t been any conclusive research on whether cracking one’s own neck is dangerous or contributes to long term health problems; however, given the risks associated with having a professional perform the procedure, it seems that self-neck manipulation is to be avoided. Having your neck cracked by a professional is called cervical spine manipulation. It can be dangerous because it involves a small risk of compressing one of the major arteries bringing blood to the brain, leading to stroke. Someone who gets their neck cracked is 3.6 times more likely to have a stroke than someone who doesn’t. (Source: Go Ask Alice)

Science
+ The Feynman Lectures on Physics: Online Edition

Quotes
+ Tell me, I'll forget. Show me, I'll remember. Involve me, I'll understand - Benjamin Franklin

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