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hemmy abd jalal
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"If you can’t explain it simply, you don’t understand it well enough." - Albert Einstein
"If you can’t explain it simply, you don’t understand it well enough." - Albert Einstein

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People With Old Phones Will Be Cut Off From the Internet on January 1

http://flip.it/SEaLe
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7 Things To Know Before Using Open Educational Resources http://t.co/9z58ymRbHN
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History of #Hashtags ...  

Honestly, at first I found them annoying. But now I see the value of them for Twitter & G+ (still don't see it for Facebook, and not so sure about Pinterest either):

"In just 6 years hashtags have evolved from a simple symbol to one of today’s most valuable marketing tools.

And it doesn’t stop there. Hashtags have integrated the lives of everyday people, every day. From a student’s Instagram pic to a CMO’s tweets, the use of hashtags have accelerated into mass popularity.

For marketers, the hashtag’s short, but rich history proves its ability to attract attention and build conversations around your message."

Infographic by +Offerpop

Full post : http://www.offerpop.com/blog/socialmediamarketing/history-hashtags/#.UtpOSRC6bIU

#socialmediamarketing   #searchmarketing  
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10 Good iPad Apps to Facilitate Students Collaboration
January 15, 2014 Below are some good apps that can facilitate your students collaboration in learning projects. The first 5 apps has been been featured in a slideshow created by Monica Burns from Class Tech Tips and are particularly useful for classes where...
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The Logarithmic Spiral
An interesting property of the logarithmic spiral is revealed if you roll it along a horizontal line. This animation shows the curves traced by points on the spiral, and note that the very center follows the path of a straight line. The angle between this line and the horizontal is called the pitch of the spiral, and for our spiral galaxy the pitch is around 12 degrees.

http://www.2dcurves.com/spiral/spirallo.html
http://pastebin.com/D3z4z6Bt (code)

via: http://goo.gl/vLsLdA

#math   #geometry   #logarithmic_spiral  
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