Learning

Get flash to fully experience Pearltrees

Our revolutionary print-on-demand model will connect you to the most sustainable and risk-free opportunities in the publishing industry. Ready to try self publishing? Simply upload your document, set your book's selling price, and just like that, you're a published author.

12 Dozen Places To Educate Yourself Online For Free

http://www.marcandangel.com/2010/11/15/12-dozen-places-to-self-educate-yourself-online/

post written by: Marc Email All education is self-education. Period. It doesn’t matter if you’re sitting in a college classroom or a coffee shop.

Atomic orbital

The shapes of the first five atomic orbitals: 1s, 2s, 2p x , 2p y , and 2p z .

http://imagine.gsfc.nasa.gov/docs/teachers/lessons/xray_spectra/background-atoms.html

Inside the Atom Just like bricks are the building blocks of a home, atoms are the building blocks of matter .

Background: Atoms and Light Energy

Open Yale courses

Security Now! Episode Archive

Full courses. Short Videos. Free for everyone. Learn the fundamentals of human-computer interaction and design thinking, with an emphasis on mobile web applications.