Scale and size from coffee been to carbon atom.

http://learn.genetics.utah.edu/content/begin/cells/scale/

TED: Marcus du Sautoy: Symmetry, reality's riddle

http://www.ted.com/talks/marcus_du_sautoy_symmetry_reality_s_riddle.html

TED: David Deutsch: A new way to explain explanation

http://www.ted.com/talks/david_deutsch_a_new_way_to_explain_explanation.html

"A Mathematician’s Lament" by Paul Lockhart (PDF)

Great article about math, school and method of teaching math.
sequel - http://www.maa.org/devlin/devlin_05_08.html
original link - http://www.maa.org/devlin/devlin_03_08.html
the document itself: http://www.maa.org/devlin/LockhartsLament.pdf
http://www.maa.org/devlin/devlin_03_08.html

50 Kick-Ass Websites You Need to Know About

http://www.maximumpc.com/article/features/50_awesome_websites

TED: Ian Goldin: Navigating our global future

http://www.ted.com/talks/ian_goldin_navigating_our_global_future.html

Breathtaking pictures of redbull illume contest.

see other pictures
http://www.redbullillume.com/gallery/final-images-2007/spirit/damiano-levati.html

Advice for Aspiring Photographers

http://theonlinephotographer.typepad.com/the_online_photographer/2009/10/my-advice-for-aspiring-photographers.html

TED: Itay Talgam: Lead like the great conductors

http://www.ted.com/talks/itay_talgam_lead_like_the_great_conductors.html

Rebranding America.

http://www.nytimes.com/2009/10/18/opinion/18bono.html?_r=5

The year's best pictures from the world of medicine

http://www.newscientist.com/gallery/wellcome-image-awards

TED: Paul Debevec animates a photo-real digital face

http://www.ted.com/talks/paul_debevec_animates_a_photo_real_digital_face.html

TED: John Gerzema: The post-crisis consumer

http://www.ted.com/talks/john_gerzema_the_post_crisis_consumer.html

TED: Julian Treasure: The 4 ways sound affects us

http://www.ted.com/talks/julian_treasure_the_4_ways_sound_affects_us.html

The fun theory - Piano Stairs (Video)

http://thefuntheory.com/
http://www.youtube.com/watch?v=2lXh2n0aPyw

TED: Rory Sutherland: Life lessons from an ad man

http://www.ted.com/talks/rory_sutherland_life_lessons_from_an_ad_man.html

TED: Eric Sanderson pictures New York -- before the City

http://www.ted.com/talks/eric_sanderson_pictures_new_york_before_the_city.html

TED: Beau Lotto: Optical illusions show how we see

http://www.ted.com/talks/beau_lotto_optical_illusions_show_how_we_see.html

TED: Chimamanda Adichie: The danger of a single story

http://www.ted.com/talks/chimamanda_adichie_the_danger_of_a_single_story.html

TED: David Logan on tribal leadership

http://www.ted.com/talks/david_logan_on_tribal_leadership.html

Nature's Best Blog (Pictures)

http://www.flickr.com/photos/31012926@N03/

Veolia Environnement wildlife photographer of the year - 2009 shortlist

http://www.guardian.co.uk/environment/gallery/2009/oct/03/veolia-wildlife-photographer-2009?picture=353748518

Photo Manipulations Art That Will Blow You Away

http://www.instantshift.com/2009/10/03/70-photo-manipulations-art-that-will-blow-you-away/

TED: Carolyn Steel: How food shapes our cities

http://www.ted.com/talks/carolyn_steel_how_food_shapes_our_cities.html

China celebrates 60 years (Pictures)

http://www.boston.com/bigpicture/2009/10/china_celebrates_60_years.html

TED: Stefan Sagmeister: The power of time off

http://www.ted.com/talks/stefan_sagmeister_the_power_of_time_off.html

Everything You Wanted to Know about Sharpening in Photoshop

http://www.creativepro.com/article/out-gamut-almost-everything-you-wanted-know-about-sharpening-photoshop-were-afraid-ask

TED: Garik Israelian: What's inside a star?

http://www.ted.com/talks/garik_israelian_what_s_inside_a_star.html