Explained — Season 1 Episode 13

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S01E13

Tattoo

★ 7.3 1 Agu 18 18 menit

They've been used to command respect, punish criminals and mark achievements. Tattooists speak about the origins of tattoo traditions and rituals.

Episode

S01E01 23 Mei 18 ★ 7.4 16m The Racial Wealth Gap Cory Booker and others discuss how slavery, housing discrimination and centuries of inequality have compounded to create a racial wealth gap.
S01E02 23 Mei 18 ★ 8.0 17m Designer DNA Scientific feat or terrifying social experiment? Specialists in the field discuss the high stakes and ethical controversies of gene editing.
S01E03 23 Mei 18 ★ 7.5 18m Monogamy What do biology, human history and the promiscuity of bonobos reveal about monogamy? Experts and everyday couples weigh in on shifting cultural norms.
S01E04 30 Mei 18 ★ 8.0 20m K-Pop Elaborate music videos, adoring fans, killer choreography. Learn about the global music phenomenon from South Korea that goes beyond "Gangnam Style."
S01E05 6 Jun 18 ★ 7.7 14m Cryptocurrency Cryptocurrency has made people billionaires, but is digital cash the next revolution? Learn about this anonymous currency and how it's coveted.
S01E06 13 Jun 18 ★ 7.5 14m Why Diets Fail Atkins. Paleo. Keto. Do any work in the long term? Experts look at marketing, food environments and genes to explain why diets are often unsuccessful.
S01E07 20 Jun 18 ★ 6.7 17m The Stock Market Does the stock market accurately reflect the status of the economy? Finance specialists discuss market history, valuations and CEO incentives.
S01E08 27 Jun 18 ★ 6.7 17m eSports Is fake violence a sport? Fans, shoutcasters, and eSports icons break down today's video games and the explosive popularity of competitive gaming.
S01E09 4 Jul 18 ★ 7.0 18m Extraterrestrial Life Despite decades of searching, we have yet to discover extraterrestrial life. Scientists discuss the reasons, including: Are aliens just too snobby?
S01E10 11 Jul 18 ★ 6.3 15m ! Do we overuse exclamation points!? Linguists and copy editors look at how the punctuation has adapted across history, literature and internet-speak.
S01E11 18 Jul 18 ★ 7.0 16m Cricket Cricket experts look at how the confusing sport became so popular and discuss its evolution in becoming more accessible entertaining and profitable.
S01E12 25 Jul 18 ★ 7.7 20m Weed Marijuana experts discuss the rise of potent "sexually frustrated" cannabis plants, the quests for consistency in weed strains and the history of hemp.
S01E13 1 Agu 18 ★ 7.3 18m Sedang diputar Tattoo They've been used to command respect, punish criminals and mark achievements. Tattooists speak about the origins of tattoo traditions and rituals.
S01E14 8 Agu 18 ★ 7.0 18m Astrology Do zodiac signs prescribe your fate? Or do horoscopes' accuracy lie in the placebo effect? Take a look at the science, history and lure of astrology.
S01E15 15 Agu 18 ★ 7.7 18m Can We Live Forever ? Can we uncover the secrets to extending the human lifespan? Experts discuss how developments in science -- even the French lilac -- hold some clues.
S01E16 22 Agu 18 ★ 7.0 18m The Female Orgasm The female orgasm is more elusive when a man is involved. Discover the reasons why and how women are embracing hands on solutions.
S01E17 29 Agu 18 ★ 7.7 18m Political Correctness Political correctness can sometimes feel like a tug-of-war between inclusivity and free speech. Experts discuss the concepts behind the fraught term.
S01E18 5 Sep 18 ★ 7.0 18m Why Women Are Paid Less Hillary Clinton and Anne-Marie Slaughter discuss the cultural norms at the center of the worldwide gender pay gap, including the "motherhood penalty."
S01E19 12 Sep 18 ★ 8.7 18m The World's Water Crisis The global water crisis is at an inflection point. How do we price our most valuable resource, while also ensuring access to it as a human right?
S01E20 19 Sep 18 ★ 7.0 19m Music When does sound become music? Why are humans so uniquely able to master musicality? Researchers talk rhythm, octaves and the magic of song and dance.