Profile

Cover photo
Al Arzaga
Lived in Chicago, IL
97 followers|8,577 views
AboutPostsPhotosVideos

Stream

Al Arzaga

Shared publicly  - 
 
Seriously, what the hell, Google?
1
Chris Mayes's profile photoAl Arzaga's profile photo
2 comments
 
Haven't yet.  I'll be checking them out soon.
Add a comment...

Al Arzaga

Shared publicly  - 
 
 
Hi - I'm testing Google+ from Earth orbit, onboard the International Space Station. If I can make it work from here, I hope to post more in the future.
2
Add a comment...

Al Arzaga

Shared publicly  - 
 
 
Hypotrochoid

511 years ago, 24 September 1501, Girolamo Cardano was born. Cardano was a mathematician, physician, gambler, and heretic; that among other things studied hypocycloids. A hypocycloid is a curve that is traced out by a point on a circle that rolls  within a larger circle.

By placing a pen through a hole on the interior circle disk, a hypotrochoid is traced out. This is used in spirographs.  By using a computer and trigonometry, the pen can placed at arbitrary distance from the centre of the interior circle. Computers don’t dumb down #education , standardized tests do!

http://www-history.mcs.st-andrews.ac.uk/Biographies/Cardan.html

#mathematics (interactive GeoGebra demo http://bit.ly/VyqjKv )
2
1
Add a comment...

Al Arzaga

Shared publicly  - 
 
The talk of China and its actions to bully the Philippines to hand over the Spratly Islands has been a steady stream on my FB wall for the past few months, thanks to my friends and relatives in the Philippines. And now that we're seeing China fan the flames on the whole Senkaku island thing with Japan, here's an interesting article to put some perspective on the situation for those who think China is just exercising its own Monroe Doctrine.   #senkakuislands   #senkaku   #china   #japan   #spratlyislands  
1
Add a comment...
Have him in circles
97 people
Brandon Benson's profile photo
Koorosh Daneshgar's profile photo
Gilbert Coble's profile photo
Alexander Tait's profile photo
wanna know's profile photo

Al Arzaga

Shared publicly  - 
 
 
Aaron Swartz, authored RSS, developer of reddit, fighter for internet freedom, battled against SOPA, aged 26, dead !

#internetfreedom   #aaronswartz   #piracy   #euromaestro  

Aaron's death is not simply a personal tragedy. It is the product of a criminal justice system rife with intimidation and prosecutorial overreach

So says the family of Aaron Swartz in a statement.  Aaron 26 was found dead, he had hanged himself the coroner reports.

His family also said :

He used his prodigious skills as a programmer and technologist not to enrich himself but to make the Internet and the world a fairer, better place.

A victory for the US justice system ?

The US justice system no longer has to worry about the threat posed by Aaron Swartz the 26 year old who co-authored RSS at the age of 14 and was an early developer of Reddit. He was a champion of internet freedom and battled against SOPA.  He was also a fellow at Harvard University's Edmond J. Safra Center for Ethics  

The US Justice system was pursuing him with 13 felony accounts threatening him with a fine of 1 million dollars and more than 35 years in prison if convicted.

His crime ?
Downloading academic journal articles with the intent of sharing them online for free with others.

Alex Stamos, CEO of Artemis Internet, is a computer forensics investigator employed by the Swartz legal defense as an expert witness. On January 12, 2012, he posted a summary of the expert testimony he was prepared to present in the JSTOR case, concluding "I know a criminal hack when I see it, and Aaron’s downloading of [academic] journal articles from an unlocked closet is not an offense worth 35 years in jail."

Lawrence Lessig, an attorney and friend of Aaron's, called his prosecution an abuse of proportionality and said "the question this government needs to answer is why it was so necessary that Aaron Swartz be labeled a felon.

=========================================
Echos of Nick Starr.
http://www.nytimes.com/2007/11/04/fashion/04twitter.html?pagewanted=all

Reminds me of the Blair Newmann story
http://www.nytimes.com/1990/08/26/weekinreview/ideas-trends-programmed-for-life-and-death.html?src=pm
=========================================

Sir Tim Berners-Lee - the European inventor of the World Wide Web - commemorated Mr Swartz in a Twitter post: "Aaron dead. World wanderers, we have lost a wise elder. Hackers for right, we are one down. Parents all, we have lost a child. Let us weep."

Today I weep.  This is truly a loss for us all.

What will we do about this ?
1
Add a comment...

Al Arzaga

Shared publicly  - 
 
 
The Pythagorean theorem

a² + b² = c²

Pythagoras was a Greek mathematician who lived about 2500 years ago, and who developed the most famous formula in geometry, possibly in all of mathematics! He proved that, for a right triangle, the sum of the squares of the two sides that join at a right angle equals the square of the third side.
#sciencesunday  
1
Add a comment...

Al Arzaga

Shared publicly  - 
 
 
Why radius is cooler than diameter

The circle is the only shape having a constant radius but there are several shapes having a constant diameter. Any regular polygon with an odd number of sides can be used to make a Reuleaux polygon by adding suitable circle segments. Since Reuleaux polygons have constant width, they fit well in coin-machines. Perfect for making coins - useless for making wheels!

http://en.wikipedia.org/wiki/Franz_Reuleaux

#mathematics #sciencesunday  
(the GeoGebra construction http://bit.ly/Vtd0uH )
2
Add a comment...
People
Have him in circles
97 people
Brandon Benson's profile photo
Koorosh Daneshgar's profile photo
Gilbert Coble's profile photo
Alexander Tait's profile photo
wanna know's profile photo
Basic Information
Gender
Male
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Previously
Chicago, IL - Peoria, IL - Kobe, Japan - Dusseldorf, Germany - Nishinomiya, Japan - San Jose, Philippines