• 102: The Tab Conspiracy - p2
    Dec 31 2025

    Part 2! After meeting on the 500 Open Tabs Discord, a few fans of the show got together and recorded a tribute episode "The Tab Conspiracy," so we decided to share it with our tens of listeners!! This week they discuss first and second sleep (which may or may not have been invented by Hobbits) and the results of when a fruit company unloaded 12000 metric tons of orange peels onto a national park in Costa Rica to study the effects of composting. Happy New Year!

    Continue the conversation by joining us on Discord! https://discord.gg/8px5RJHk7a


    Email your closed tab submissions to: 500opentabs@gmail.com

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    Get 40% off an annual subscription to Nebula by going to nebula.tv/500opentabs

    See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

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    50 mins
  • 101: The Tab Conspiracy - p1
    Dec 24 2025

    After meeting on the 500 Open Tabs Discord, a few fans of the show got together and recorded a tribute episode "The Tab Conspiracy," so we decided to share it with our tens of listeners!! This week they discuss how Ivo Zdarsky flew to Vienna in a homemade airplane to claim political asylum from Czechoslovakia and the life of Bud Hurlbut, the engineer/creator most famously known for designing Knott's Berry Farm. Happy Holidays!

    Continue the conversation by joining us on Discord! https://discord.gg/8px5RJHk7a


    Email your closed tab submissions to: 500opentabs@gmail.com

    Support us on Patreon: https://www.patreon.com/500OpenTabs

    500 Open Tabs Wiki: https://500-open-tabs.fandom.com/wiki/500_Open_Tabs_Wiki

    500 Open Roads (Google Maps episode guide): https://maps.app.goo.gl/Tg9g2HcUaFAzXGbw7

    Get 40% off an annual subscription to Nebula by going to nebula.tv/500opentabs

    See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

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    1 hr and 10 mins
  • 100: KUMIT4B!! (500 Open Stabs Round 4)
    Dec 17 2025

    Our Season 2 finale brings back the ancient tournament of Kumitab, where we pit some of our most unhinged subjects against one another including Bat Boy, Khutulun, and the 1800s self-replicating robot Jesus in a battle to the death.


    Email your closed tab submissions to: 500opentabs@gmail.com

    Support us on Patreon: https://www.patreon.com/500OpenTabs

    500 Open Tabs Wiki: https://500-open-tabs.fandom.com/wiki/500_Open_Tabs_Wiki

    500 Open Roads (Google Maps episode guide): https://maps.app.goo.gl/Tg9g2HcUaFAzXGbw7

    Continue the conversation by joining us on Discord! https://discord.gg/8px5RJHk7a


    Get 40% off an annual subscription to Nebula by going to nebula.tv/500opentabs

    See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

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    1 hr and 23 mins
  • 99: A Niewe Herball, Atomic Bomb Ring, and Reverse John Wick
    Dec 10 2025

    This week we are joined by award winning author Amal El-Mohtar as we learn about herbiary plagiarism from the 16th century, how Kix cereal once offered toys with radioactive material, and the tale of a 14th century French dog pulling a reverse John Wick. A listener mail tells us about the most lopsided football game of all time.


    Holiday Market at Tito Rick's Garage

    Saturday December 13th, 11am-4pm

    2918 Imperial Ave San Diego, CA 92102


    Kaveh's Online Store:

    https://www.blacksmithfilms.com/store

    Cat People

    https://www.hachettebookgroup.com/titles/hannah-hillam/cat-people/9780762486083/?lens=running-press


    Episode Tabs:

    Asking questions through fiction: research into Henry Lyte’s ‘A Niewe Herball’ (1578)

    https://www.herbalhistory.org/home/henry_lyte/

    Kix cereal once offered 'Atomic Bomb Ring' with radioactive material as a promotion?

    https://www.snopes.com/fact-check/kix-lone-ranger-atomic-bomb-ring/

    A Murder and a Dog Seeking Justice

    https://www.psychologytoday.com/us/blog/canine-corner/201008/a-murder-and-a-dog-seeking-justice


    Listener Tabs:

    1916 Cumberland vs. Georgia Tech football game

    https://en.wikipedia.org/wiki/1916_Cumberland_vs._Georgia_Tech_football_game


    Email your closed tab submissions to: 500opentabs@gmail.com

    Support us on Patreon: https://www.patreon.com/500OpenTabs

    500 Open Tabs Wiki: https://500-open-tabs.fandom.com/wiki/500_Open_Tabs_Wiki

    500 Open Roads (Google Maps episode guide): https://maps.app.goo.gl/Tg9g2HcUaFAzXGbw7

    Continue the conversation by joining us on Discord! https://discord.gg/8px5RJHk7a


    Get 40% off an annual subscription to Nebula by going to nebula.tv/500opentabs

    See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

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    1 hr and 32 mins
  • 98: Leon Theremin and Emperor Norton
    Dec 3 2025

    This week we learn about the fascinating life of Russian inventor Leon Theremin, whose eponymous instrument led to the birth of electronic music and how San Francisco happily obliged a formerly successful South African businessman after he delcared himself Emperor of the United States. A listener mail tells us about the real birthplace of Captain Kirk.


    Kaveh's Shop:

    https://www.blacksmithfilms.com/store

    Cat People

    https://www.hachettebookgroup.com/titles/hannah-hillam/cat-people/9780762486083/?lens=running-press


    Episode Tabs:

    Theremin, an Electric Odyssey

    https://www.youtube.com/watch?v=fqAhSEbBHJA

    Emperor Norton

    https://www.foundsf.org/Emperor_Norton


    Listener Tabs:

    Riverside, Iowa

    https://en.wikipedia.org/wiki/Riverside,_Iowa

    Flight of the Blackbird

    https://www.la-barraca.be/azyriab.pdf


    Email your closed tab submissions to: 500opentabs@gmail.com

    Support us on Patreon: https://www.patreon.com/500OpenTabs

    500 Open Tabs Wiki: https://500-open-tabs.fandom.com/wiki/500_Open_Tabs_Wiki

    500 Open Roads (Google Maps episode guide): https://maps.app.goo.gl/Tg9g2HcUaFAzXGbw7

    Continue the conversation by joining us on Discord! https://discord.gg/8px5RJHk7a


    Get 40% off an annual subscription to Nebula by going to nebula.tv/500opentabs

    See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

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    1 hr and 31 mins
  • 97: Listener Email Extravaganza - Thanksgiving Edition!
    Nov 26 2025

    It's Thanksgiving week so we're showing our thanks to our tens of listeners by dedicating an entire episode to their tabs! Join us as we learn about Existentialism, criminals who are bad at stealing ruby slippers, and a prophet's foreskin.


    Listener Tabs:

    Philosophize This

    https://www.philosophizethis.org/

    Austin Dam 1911

    https://m.youtube.com/watch?v=DmZCpgl1FDY

    Catherine of Siena

    https://en.m.wikipedia.org/wiki/Catherine_of_Siena


    Email your closed tab submissions to: 500opentabs@gmail.com

    Support us on Patreon: https://www.patreon.com/500OpenTabs

    500 Open Tabs Wiki: https://500-open-tabs.fandom.com/wiki/500_Open_Tabs_Wiki

    500 Open Roads (Google Maps episode guide): https://maps.app.goo.gl/Tg9g2HcUaFAzXGbw7

    Continue the conversation by joining us on Discord! https://discord.gg/8px5RJHk7a


    Get 40% off an annual subscription to Nebula by going to nebula.tv/500opentabs

    See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

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    1 hr and 1 min
  • 96: Charlie and the Chocolate Factory, Pumpkin Mammoth Theory, and Bao Xishun
    Nov 19 2025

    This week we're joined by very special guest, comic artist Harris Fishman AKA BeetleMoses as we discuss Roald Dahl's relationship to Tim Burton's 2005 adaptation of his book, how Wooly Mammoths helped propagate pumpkins in the Americas, and how the world's tallest man helped save some dolphins. A listener mail tells us about the GOAT of goats, the Christmas Gävle in Sweden.


    Episode Tabs:

    Charlie and the Chocolate Factory

    https://en.wikipedia.org/wiki/Charlie_and_the_Chocolate_Factory_(film)

    Study reveals ancient link between mammoth dung and pumpkin pie

    https://insider.si.edu/2015/11/dull-mastadon-taste-buds-once-helped-pumpkins-wild-ancestor-thrive/

    World's tallest man saves dolphins

    https://www.theguardian.com/news/blog/2006/dec/14/anotherdolphin


    Listener Tabs:

    Gävle goat

    https://en.wikipedia.org/wiki/Gävle_goat#


    Email your closed tab submissions to: 500opentabs@gmail.com

    Support us on Patreon: https://www.patreon.com/500OpenTabs

    500 Open Tabs Wiki: https://500-open-tabs.fandom.com/wiki/500_Open_Tabs_Wiki

    500 Open Roads (Google Maps episode guide): https://maps.app.goo.gl/Tg9g2HcUaFAzXGbw7

    Continue the conversation by joining us on Discord! https://discord.gg/8px5RJHk7a


    Get 40% off an annual subscription to Nebula by going to nebula.tv/500opentabs

    See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

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    1 hr and 32 mins
  • 95: Billy Possum and The Thing
    Nov 12 2025

    This week we deep dive into how a political cartoon of William Howard Taft inspired Billy Possum who once tried to take control of the plush market from the Teddy Bear and how a listening device within a seemingly innocent gift from the Soviets during the Yalta Conference inspired the modern day RFID. A listener email shows us a TV portal to the past.


    500 Open Tabs Wiki

    https://500-open-tabs.fandom.com/wiki/500_Open_Tabs_Wiki


    Episode Tabs:

    Politics and Possum Feasts: Presidents Who Ate Opossums

    https://blogs.loc.gov/folklife/2019/09/politics-and-possum-feasts-presidents-who-ate-opossums/

    Leon Theremin Changed Spying FOREVER with this 1940s invention!

    https://youtu.be/GyryQltyDwA?si=5xtxJGadvhtLxyH3


    Listener Tabs:

    My Retro TVs

    https://80s.myretrotvs.com


    Email your closed tab submissions to: 500opentabs@gmail.com

    Support us on Patreon: https://www.patreon.com/500OpenTabs

    500 Open Tabs Wiki: https://500-open-tabs.fandom.com/wiki/500_Open_Tabs_Wiki

    500 Open Roads (Google Maps episode guide): https://maps.app.goo.gl/Tg9g2HcUaFAzXGbw7

    Continue the conversation by joining us on Discord! https://discord.gg/8px5RJHk7a


    Get 40% off an annual subscription to Nebula by going to nebula.tv/500opentabs

    See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

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    1 hr and 27 mins