# Browse the lectures

35,551 courses and talks.

- [Why should you listen to Vivaldi's "Four Seasons"?](https://invisiblenetwork.ai/learn/ted/betsy_schwarm_why_should_you_listen_to_vivaldi_s_four_seasons): Betsy Schwarm · TED
- [At what moment are you dead?](https://invisiblenetwork.ai/learn/ted/randall_hayes_at_what_moment_are_you_dead): Randall Hayes · TED
- [Dreams from endangered cultures](https://invisiblenetwork.ai/learn/ted/wade_davis_dreams_from_endangered_cultures): Wade Davis · TED
- [How menopause affects the brain](https://invisiblenetwork.ai/learn/ted/lisa_mosconi_how_menopause_affects_the_brain): Lisa Mosconi · TED
- [Nature. Beauty. Gratitude.](https://invisiblenetwork.ai/learn/ted/louie_schwartzberg_nature_beauty_gratitude): Louie Schwartzberg · TED
- [Confessions of a depressed comic](https://invisiblenetwork.ai/learn/ted/kevin_breel_confessions_of_a_depressed_comic): Kevin Breel · TED
- [My 12 pairs of legs](https://invisiblenetwork.ai/learn/ted/aimee_mullins_my_12_pairs_of_legs): Aimee Mullins · TED
- [The Arctic vs. the Antarctic](https://invisiblenetwork.ai/learn/ted/camille_seaman_the_arctic_vs_the_antarctic): Camille Seaman · TED
- [Can you solve the multiplying rabbits riddle?](https://invisiblenetwork.ai/learn/ted/alex_gendler_can_you_solve_the_multiplying_rabbits_riddle): Alex Gendler · TED
- [What's hidden under the Greenland ice sheet?](https://invisiblenetwork.ai/learn/ted/kristin_poinar_what_s_hidden_under_the_greenland_ice_sheet): Kristin Poinar · TED
- [Can you solve the jail break riddle?](https://invisiblenetwork.ai/learn/ted/daniel_finkel_can_you_solve_the_jail_break_riddle): Daniel Finkel · TED
- [The secret US prisons you've never heard of before](https://invisiblenetwork.ai/learn/ted/will_potter_the_secret_us_prisons_you_ve_never_heard_of_before): Will Potter · TED
- [What causes hallucinations?](https://invisiblenetwork.ai/learn/ted/elizabeth_cox_what_causes_hallucinations): Elizabeth Cox · TED
- [Let's teach for mastery -- not test scores](https://invisiblenetwork.ai/learn/ted/sal_khan_let_s_teach_for_mastery_not_test_scores): Sal Khan · TED
- [The power of the placebo effect](https://invisiblenetwork.ai/learn/ted/emma_bryce_the_power_of_the_placebo_effect): Emma Bryce · TED
- [The ancient origins of the Olympics](https://invisiblenetwork.ai/learn/ted/armand_d_angour_the_ancient_origins_of_the_olympics): Armand D'Angour · TED
- [Why do we have crooked teeth when our ancestors didn't?](https://invisiblenetwork.ai/learn/ted/g_richard_scott_why_do_we_have_crooked_teeth_when_our_ancestors_didn_t): G. Richard Scott · TED
- [How to outsmart the Prisoner's Dilemma](https://invisiblenetwork.ai/learn/ted/lucas_husted_how_to_outsmart_the_prisoner_s_dilemma): Lucas Husted · TED
- [How to unboil an egg](https://invisiblenetwork.ai/learn/ted/eleanor_nelsen_how_to_unboil_an_egg): Eleanor Nelsen · TED
- [How does your body process medicine?](https://invisiblenetwork.ai/learn/ted/celine_valery_how_does_your_body_process_medicine): Céline Valéry · TED
- [Meet Spot, the robot dog that can run, hop and open doors](https://invisiblenetwork.ai/learn/ted/marc_raibert_meet_spot_the_robot_dog_that_can_run_hop_and_open_doors): Marc Raibert · TED
- [A beatboxing lesson from a father-daughter duo](https://invisiblenetwork.ai/learn/ted/nicole_paris_and_ed_cage_a_beatboxing_lesson_from_a_father_daughter_duo): Nicole Paris and Ed Cage · TED
- [Understanding the rise of China](https://invisiblenetwork.ai/learn/ted/martin_jacques_understanding_the_rise_of_china): Martin Jacques · TED
- [What if there were 1 trillion more trees?](https://invisiblenetwork.ai/learn/ted/jean_francois_bastin_what_if_there_were_1_trillion_more_trees): Jean-François Bastin · TED
- [Success is a continuous journey](https://invisiblenetwork.ai/learn/ted/richard_st_john_success_is_a_continuous_journey): Richard St. John · TED
- [Letting go of God](https://invisiblenetwork.ai/learn/ted/julia_sweeney_letting_go_of_god): Julia Sweeney · TED
- [Mary's Room: A philosophical thought experiment](https://invisiblenetwork.ai/learn/ted/eleanor_nelsen_mary_s_room_a_philosophical_thought_experiment): Eleanor Nelsen · TED
- [Why our IQ levels are higher than our grandparents'](https://invisiblenetwork.ai/learn/ted/james_flynn_why_our_iq_levels_are_higher_than_our_grandparents): James Flynn · TED
- [How to live to be 100+](https://invisiblenetwork.ai/learn/ted/dan_buettner_how_to_live_to_be_100): Dan Buettner · TED
- [The surveillance device you carry around all day](https://invisiblenetwork.ai/learn/ted/marta_peirano_the_surveillance_device_you_carry_around_all_day): Marta Peirano · TED
- [The pharaoh that wouldn't be forgotten](https://invisiblenetwork.ai/learn/ted/kate_green_the_pharaoh_that_wouldn_t_be_forgotten): Kate Green · TED
- [The radical promise of the multi-touch interface](https://invisiblenetwork.ai/learn/ted/jeff_han_the_radical_promise_of_the_multi_touch_interface): Jeff Han · TED
- [What's normal anxiety -- and what's an anxiety disorder?](https://invisiblenetwork.ai/learn/ted/jen_gunter_what_s_normal_anxiety_and_what_s_an_anxiety_disorder): Jen Gunter · TED
- [How to buy happiness](https://invisiblenetwork.ai/learn/ted/michael_norton_how_to_buy_happiness): Michael Norton · TED
- [A dance of "Symbiosis"](https://invisiblenetwork.ai/learn/ted/pilobolus_a_dance_of_symbiosis): Pilobolus · TED
- [The linguistic genius of babies](https://invisiblenetwork.ai/learn/ted/patricia_kuhl_the_linguistic_genius_of_babies): Patricia Kuhl · TED
- [Should you trust unanimous decisions?](https://invisiblenetwork.ai/learn/ted/derek_abbott_should_you_trust_unanimous_decisions): Derek Abbott · TED
- [A guerrilla gardener in South Central LA](https://invisiblenetwork.ai/learn/ted/ron_finley_a_guerrilla_gardener_in_south_central_la): Ron Finley · TED
- [The anti-CEO playbook](https://invisiblenetwork.ai/learn/ted/hamdi_ulukaya_the_anti_ceo_playbook): Hamdi Ulukaya · TED
- [A roadmap to end aging](https://invisiblenetwork.ai/learn/ted/aubrey_de_grey_a_roadmap_to_end_aging): Aubrey de Grey · TED
- [Is the world getting better or worse? A look at the numbers](https://invisiblenetwork.ai/learn/ted/steven_pinker_is_the_world_getting_better_or_worse_a_look_at_the_numbers): Steven Pinker · TED
- [A day in the life of an ancient Athenian](https://invisiblenetwork.ai/learn/ted/robert_garland_a_day_in_the_life_of_an_ancient_athenian): Robert Garland · TED
- [How to get better at the things you care about](https://invisiblenetwork.ai/learn/ted/eduardo_briceno_how_to_get_better_at_the_things_you_care_about): Eduardo Briceño · TED
- [Why fascism is so tempting -- and how your data could power it](https://invisiblenetwork.ai/learn/ted/yuval_noah_harari_why_fascism_is_so_tempting_and_how_your_data_could_power_it): Yuval Noah Harari · TED
- [What yoga does to your body and brain](https://invisiblenetwork.ai/learn/ted/krishna_sudhir_what_yoga_does_to_your_body_and_brain): Krishna Sudhir · TED
- [Why our screens make us less happy](https://invisiblenetwork.ai/learn/ted/adam_alter_why_our_screens_make_us_less_happy): Adam Alter · TED
- [A Black man goes undercover in the alt-right](https://invisiblenetwork.ai/learn/ted/theo_e_j_wilson_a_black_man_goes_undercover_in_the_alt_right): Theo E.J. Wilson · TED
- [How do antidepressants work?](https://invisiblenetwork.ai/learn/ted/neil_r_jeyasingam_how_do_antidepressants_work): Neil R. Jeyasingam · TED

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