# Browse the lectures 35,551 courses and talks. - [The shocking danger of mountaintop removal -- and why it must end](https://invisiblenetwork.ai/learn/ted/michael_hendryx_the_shocking_danger_of_mountaintop_removal_and_why_it_must_end): Michael Hendryx · TED - [What a world without prisons could look like](https://invisiblenetwork.ai/learn/ted/deanna_van_buren_what_a_world_without_prisons_could_look_like): Deanna Van Buren · TED - [A mini robot -- powered by your phone](https://invisiblenetwork.ai/learn/ted/keller_rinaudo_cliffton_a_mini_robot_powered_by_your_phone): Keller Rinaudo Cliffton · TED - [How we cut youth violence in Boston by 79 percent](https://invisiblenetwork.ai/learn/ted/jeffrey_brown_how_we_cut_youth_violence_in_boston_by_79_percent): Jeffrey Brown · TED - [An economic reality check](https://invisiblenetwork.ai/learn/ted/tim_jackson_an_economic_reality_check): Tim Jackson · TED - [The intergenerational wisdom woven into Indigenous stories](https://invisiblenetwork.ai/learn/ted/tai_simpson_the_intergenerational_wisdom_woven_into_indigenous_stories): Tai Simpson · TED - [Symmetry, reality's riddle](https://invisiblenetwork.ai/learn/ted/marcus_du_sautoy_symmetry_reality_s_riddle): Marcus du Sautoy · TED - [Why are we so bad at reporting good news?](https://invisiblenetwork.ai/learn/ted/angus_hervey_why_are_we_so_bad_at_reporting_good_news): Angus Hervey · TED - [We need to feed the whole world](https://invisiblenetwork.ai/learn/ted/louise_fresco_we_need_to_feed_the_whole_world): Louise Fresco · TED - [A smog vacuum cleaner and other magical city designs](https://invisiblenetwork.ai/learn/ted/daan_roosegaarde_a_smog_vacuum_cleaner_and_other_magical_city_designs): Daan Roosegaarde · TED - [I was held hostage for 317 days. Here's what I thought about…](https://invisiblenetwork.ai/learn/ted/vincent_cochetel_i_was_held_hostage_for_317_days_here_s_what_i_thought_about): Vincent Cochetel · TED - [The doctors, nurses and aid workers rebuilding Syria](https://invisiblenetwork.ai/learn/ted/rola_hallam_the_doctors_nurses_and_aid_workers_rebuilding_syria): Rola Hallam · TED - [The real story of McMafia -- how global crime networks work](https://invisiblenetwork.ai/learn/ted/misha_glenny_the_real_story_of_mcmafia_how_global_crime_networks_work): Misha Glenny · TED - [What do dumplings look like around the world?](https://invisiblenetwork.ai/learn/ted/miranda_brown_what_do_dumplings_look_like_around_the_world): Miranda Brown · TED - [Making sound visible through cymatics](https://invisiblenetwork.ai/learn/ted/evan_grant_making_sound_visible_through_cymatics): Evan Grant · TED - [How I learned to stop worrying and love "useless" art](https://invisiblenetwork.ai/learn/ted/luke_syson_how_i_learned_to_stop_worrying_and_love_useless_art): Luke Syson · TED - [The Encyclopedia of Invisibility — a home for lost stories](https://invisiblenetwork.ai/learn/ted/tavares_strachan_the_encyclopedia_of_invisibility_a_home_for_lost_stories): Tavares Strachan · TED - [An entertainment icon on living a life of meaning](https://invisiblenetwork.ai/learn/ted/norman_lear_an_entertainment_icon_on_living_a_life_of_meaning): Norman Lear · TED - [How fungi recognize (and infect) plants](https://invisiblenetwork.ai/learn/ted/mennat_el_ghalid_how_fungi_recognize_and_infect_plants): Mennat El Ghalid · TED - [What happened to the lost Kingdom of Kush?](https://invisiblenetwork.ai/learn/ted/geoff_emberling_what_happened_to_the_lost_kingdom_of_kush): Geoff Emberling · TED - [Why don’t we get our drinking water from the ocean?](https://invisiblenetwork.ai/learn/ted/manish_kumar_why_don_t_we_get_our_drinking_water_from_the_ocean): Manish Kumar · TED - [Every piece of art you've ever wanted to see -- up close and searchable](https://invisiblenetwork.ai/learn/ted/amit_sood_every_piece_of_art_you_ve_ever_wanted_to_see_up_close_and_searchable): Amit Sood · TED - [To the South Pole and back — the hardest 105 days of my life](https://invisiblenetwork.ai/learn/ted/ben_saunders_to_the_south_pole_and_back_the_hardest_105_days_of_my_life): Ben Saunders · TED - [How do investors choose stocks?](https://invisiblenetwork.ai/learn/ted/richard_coffin_how_do_investors_choose_stocks): Richard Coffin · TED - [What it's like to be a woman in Hollywood](https://invisiblenetwork.ai/learn/ted/naomi_mcdougall_jones_what_it_s_like_to_be_a_woman_in_hollywood): Naomi McDougall Jones · TED - [Meet the women fighting on the front lines of an American war](https://invisiblenetwork.ai/learn/ted/gayle_tzemach_lemmon_meet_the_women_fighting_on_the_front_lines_of_an_american_war): Gayle Tzemach Lemmon · TED - [What squatter cities can teach us](https://invisiblenetwork.ai/learn/ted/stewart_brand_what_squatter_cities_can_teach_us): Stewart Brand · TED - [Success stories from Kenya's first makerspace](https://invisiblenetwork.ai/learn/ted/kamau_gachigi_success_stories_from_kenya_s_first_makerspace): Kamau Gachigi · TED - [The Web's secret stories](https://invisiblenetwork.ai/learn/ted/jonathan_harris_the_web_s_secret_stories): Jonathan Harris · TED - [The El Sistema music revolution](https://invisiblenetwork.ai/learn/ted/jose_antonio_abreu_the_el_sistema_music_revolution): José Antonio Abreu · TED - [Freeing energy from the grid](https://invisiblenetwork.ai/learn/ted/justin_hall_tipping_freeing_energy_from_the_grid): Justin Hall-Tipping · TED - [Mammoths resurrected, geoengineering and other thoughts from a futurist](https://invisiblenetwork.ai/learn/ted/stewart_brand_and_chris_anderson_mammoths_resurrected_geoengineering_and_other_thoughts_from_a_futurist): Stewart Brand and Chris Anderson · TED - [How a start-up in the White House is changing business as usual](https://invisiblenetwork.ai/learn/ted/haley_van_dyck_how_a_start_up_in_the_white_house_is_changing_business_as_usual): Haley Van Dyck · TED - [Why AI will spark exponential economic growth](https://invisiblenetwork.ai/learn/ted/cathie_wood_why_ai_will_spark_exponential_economic_growth): Cathie Wood · TED - [The warmth and wisdom of mud buildings](https://invisiblenetwork.ai/learn/ted/anna_heringer_the_warmth_and_wisdom_of_mud_buildings): Anna Heringer · TED - [Art in the age of machine intelligence](https://invisiblenetwork.ai/learn/ted/refik_anadol_art_in_the_age_of_machine_intelligence): Refik Anadol · TED - [Who would the rest of the world vote for in your country's election?](https://invisiblenetwork.ai/learn/ted/simon_anholt_who_would_the_rest_of_the_world_vote_for_in_your_country_s_election): Simon Anholt · TED - [A thousand times no](https://invisiblenetwork.ai/learn/ted/bahia_shehab_a_thousand_times_no): Bahia Shehab · TED - [How beauty feels](https://invisiblenetwork.ai/learn/ted/richard_seymour_how_beauty_feels): Richard Seymour · TED - [We train soldiers for war. Let's train them to come home, too](https://invisiblenetwork.ai/learn/ted/hector_garcia_we_train_soldiers_for_war_let_s_train_them_to_come_home_too): Hector Garcia · TED - [The surprising secrets of hummingbird flight](https://invisiblenetwork.ai/learn/ted/kristiina_j_hurme_and_alejandro_rico_guevara_the_surprising_secrets_of_hummingbird_flight): Kristiina J. Hurme and Alejandro Rico-Guevara · TED - [A light switch for neurons](https://invisiblenetwork.ai/learn/ted/ed_boyden_a_light_switch_for_neurons): Ed Boyden · TED - [To love is to be brave](https://invisiblenetwork.ai/learn/ted/kelly_corrigan_to_love_is_to_be_brave): Kelly Corrigan · TED - [Meet the future of cancer research](https://invisiblenetwork.ai/learn/ted/eva_vertes_meet_the_future_of_cancer_research): Eva Vertes · TED - [How sound can hack your memory while you sleep](https://invisiblenetwork.ai/learn/ted/greg_gage_how_sound_can_hack_your_memory_while_you_sleep): Greg Gage · TED - [3 ways your money can fight climate change](https://invisiblenetwork.ai/learn/ted/veronica_chau_3_ways_your_money_can_fight_climate_change): Veronica Chau · TED - [The catastrophic risks of AI — and a safer path](https://invisiblenetwork.ai/learn/ted/yoshua_bengio_the_catastrophic_risks_of_ai_and_a_safer_path): Yoshua Bengio · TED - [What we think we know](https://invisiblenetwork.ai/learn/ted/jonathan_drori_what_we_think_we_know): Jonathan Drori · TED [Next page](https://invisiblenetwork.ai/learn/browse?page=83)