gdelfino's channel
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gdelfino
favorited
3 months ago
Toilet Paper Folder & Dispenser Prototype
This is a project that me and my friends built for school (UC Berkeley). Its made of lego mindstorms, scissors, and some scrap metal. With all thin...
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gdelfino
liked
3 months ago
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gdelfino
liked
3 months ago
A Quick Introduction to CDF
Today's online documents are like yesterday's paper—flat, lifeless, inactive. Instead the Computable Document Format (CDF) puts easy-to-author inte...
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apple mac office "lemmings commercial"
the official name of this commercial is lemmings but i don't know why. if u do please tell me.
p.s. this is supposed to be the continuation to thei...
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gdelfino
favorited
3 months ago
Apple Steve Jobs The Crazy Ones - NEVER BEFORE AIRED 1997
Steve Jobs narrates the first Think different commercial "Here's to the Crazy Ones". It never aired. Richard Dreyfuss did the voiceover for the o...
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gdelfino
liked
4 months ago
Simon Sinek: How great leaders inspire action
http://www.ted.com Simon Sinek presents a simple but powerful model for how leaders inspire action, starting with a golden circle and the question ...
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gdelfino
favorited
7 months ago
RailsConf 2011, David Heinemeier Hansson
RailsConf 2011, David Heinemeier Hansson
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gdelfino
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7 months ago
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gdelfino
favorited
8 months ago
Pendulum Waves
Fifteen uncoupled simple pendulums of monotonically increasing lengths dance together to produce visual traveling waves, standing waves, beating, a...
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gdelfino
favorited
9 months ago
Mathematica Graphics for Presenting Multidimensional Evidence
Robert Yerex is chief economist at Kronos and creator of the Retail Labor Index, which is used by economists studying consumer spending and employm...
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gdelfino
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9 months ago
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gdelfino
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9 months ago
Behind the Splashscreen
This video is an honest and candid glimpse of the product development process around Photoshop CS5. Check out our blog post for more insight about ...
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gdelfino
liked
9 months ago
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gdelfino
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10 months ago
NeXTSTEP Release 3 Demo
Steve Jobs demoing the NEXT operating system. Many of the features shown here are now in Macintosh OSX.
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gdelfino
liked
10 months ago
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gdelfino
favorited
11 months ago
Feather & Hammer Drop on Moon
Here's the famous footage of the Apollo 15 astronaut that dropped a hammer & feather on the moon to prove Galileo's theory that in the absence of a...
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Martha: Last of the Passenger Pigeons
This is the story of the last Passenger Pigeon on Earth. Passenger Pigeons used to fly in flocks of over a billion birds. They roamed all over this...
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gdelfino
liked
1 year ago
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gdelfino
favorited
1 year ago
(class 1 of 6) Efficient Rails Test-Driven Development - by Wolfram Arnold
Learn how to apply the test-first approach to all of your Rails projects. In this six class series, experienced Rails engineer and consultant, Wolf...
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Eye Splice
Most eye splice instructions have you tuck in first one side then turn the splice over and repeat. This type is different. Unravel as much as you...
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About gdelfino's channel
(class 2 of 6) Efficient Rails Test Driven Development - by Wolfram Arnold
Learn how to apply the test-first approach to all of your Rails projects. In this six class series, experienced Rails engineer and consultant, Wolf...
3,162 views
gdelfino said:
Excellent series of videos. However, the address_spec.rb changes from minute 17 to 23:34 without any explanations. There seem to be missing the explanation when 'context "Validations"' becomes 'describe "Validations"'.
By googling I fount that "describe" and "context" are the same thing.