URL: http://www.ted.com/talks/ed_gavagan_a_story_about_knots_and_surgeons.html

URL: http://www.rozswietlamykulture.pl/reflektor/2012/09/12/do-dziela-katowice/

URL: http://www.ted.com/talks/lang/pl/daniel_wolpert_the_real_reason_for_brains.html

URL: http://blog.ted.com/2012/08/21/the-20-most-watched-ted-talks-to-date/

URL: http://www.ted.com/talks/lang/pl/brian_greene_on_string_theory.html

URL: http://www.youtube.com/watch?v=UBpTohx1BOc

URL: http://www.youtube.com/watch?feature=player_embedded&v=d5_h1VuwD6g

URL: http://www.ted.com/talks/lang/pl/terry_moore_why_is_x_the_unknown.html

URL: http://youtu.be/jILgxeNBK_8

URL: http://www.ted.com/talks/david_anderson_your_brain_is_more_than_a_bag_of_chemicals.html

URL: http://www.ted.com/talks/steven_pinker_chalks_it_up_to_the_blank_slate.html

URL: http://www.ted.com/talks/lang/pl/stephen_hawking_asks_big_questions_about_the_universe.html

URL: http://www.ted.com/talks/lang/pl/david_blaine_how_i_held_my_breath_for_17_min.html

URL: http://www.ted.com/talks/harvey_fineberg_are_we_ready_for_neo_evolution.html

URL: http://youtu.be/9WvoGlQ7zH8

URL: http://www.ted.com/talks/lang/pl/rives_on_4_a_m.html

URL: http://www.ted.com/talks/hadyn_parry_re_engineering_mosquitos_to_fight_disease.html

URL: http://www.ted.com/talks/edith_widder_how_we_found_the_giant_squid.html

URL: http://www.ted.com/talks/amy_cuddy_your_body_language_shapes_who_you_are.html

URL: http://www.ted.com/talks/lang/pl/elon_musk_the_mind_behind_tesla_spacex_solarcity.html