PBS
The Two People We're All Related To
Due to an odd quirk of genetics and some unique evolutionary circumstances, two humans who lived at different times in the distant past managed to pass on a very small fraction of their genomes to you. And to me. To all of us.
TED Talks
Euvin Naidoo: Why invest in Africa
South African investment banker Euvin Naidoo explains why investing in Africa can make great business sense.
TED Talks
Annie Lennox: Why I am an HIV/AIDS activist
For the last eight years, pop singer Annie Lennox has devoted the majority of her time to her SING campaign, raising awareness and money to combat HIV/AIDS. She shares the experiences that have inspired her, from working with Nelson...
Crash Course
Things Fall Apart, Part 2: Crash Course Literature 209
In which John Green concludes teaching you about Chinua Achebe's Things Fall Apart. You'll learn about the historical contexts of Things Fall Apart, including 19th century colonization and 20th century decolonization. We're going to...
TED Talks
TED: Living sculptures that stand for history's truths | Sethembile Msezane
In the century-old statues that occupy Cape Town, Sethembile Mzesane didn't see anything that looked like her own reality. So she became a living sculpture herself, standing for hours on end in public spaces dressed in symbolic costumes,...
TED Talks
Rose M. Mutiso: How to bring affordable, sustainable electricity to Africa
Energy poverty, or the lack of access to electricity and other basic energy services, affects nearly two-thirds of Sub-Saharan Africa. As the region's population continues to increase, so will the need to build a new energy system to...
SciShow
An Unexpected Tool to Track Ancient Civilizations...Bacteria
Scientists have used a bacteria that commonly infects us to track how ancient humans spread to the Americas from Siberia. And other scientists have discovered a new species of hyrax in the forests of Africa by listening to their barks...
TED Talks
David Griffin: How photography connects us
The photo director for National Geographic, David Griffin knows the power of photography to connect us to our world. In a talk filled with glorious images, he talks about how we all use photos to tell our stories.
TED Talks
Parag Khanna: Mapping the future of countries
Many people think the lines on the map no longer matter, but Parag Khanna says they do. Using maps of the past and present, he explains the root causes of border conflicts worldwide and proposes simple yet cunning solutions for each.
TED Talks
Dambisa Moyo: Is China the new idol for emerging economies?
The developed world holds up the ideals of capitalism, democracy and political rights for all. Those in emerging markets often don't have that luxury. In this powerful talk, economist Dambisa Moyo makes the case that the west can't...
SciShow
SciShow Talk Show: Writer Jeremy Smith, Measuring Health & Freya the Pine Snake
In this episode Hank talks about global medical history and recorded death certificates with journalist Jeremy Smith. Special guest from Animal Wonders and SciShow Kids Jessi Knudsen Castañeda brings Freya the Northern Pine Snake.
TED Talks
TED: The Sacred Art of the Ori | Laolu Senbanjo
every artist has a name, and every artist has a story. Laolu Senbanjo's story started in Nigeria, where he was surrounded by the culture and mythology of the Yoruba, and brought him to law school, to New York and eventually to work on...
TED Talks
Rose Goslinga: Crop insurance, an idea worth seeding
Across sub-Saharan Africa, small farmers are the bedrock of national and regional economies—unless the weather proves unpredictable and their crops fail. The solution is insurance, at a vast, continental scale, and at a very low,...
TED Talks
TED: How Africa can keep rising | Ngozi Okonjo-Iweala
African growth is a trend, not a fluke, says economist and former Finance Minister of Nigeria Ngozi Okonjo-Iweala. In this refreshingly candid and straightforward talk, Okonjo-Iweala describes the positive progress on the continent and...
TED Talks
Hans Rosling: Religions and babies
Hans Rosling had a question: Do some religions have a higher birth rate than others -- and how does this affect global population growth? Speaking at the TEDxSummit in Doha, Qatar, he graphs data over time and across religions. With his...
SciShow
Why Are There No Sea Snakes in the Atlantic
The Atlantic Ocean is the second largest on Earth, and yet there are no sea snake populations to be found there. What’s keeping aquatic serpents from making a home in these waters?
TED Talks
Africa's cheetahs versus hippos - George Ayittey
* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. Ghanaian economist George Ayittey unleashes a torrent of controlled anger toward corrupt leaders in Africa -- and...
TED Talks
Kwabena Boahen: A computer that works like the brain
Researcher Kwabena Boahen is looking for ways to mimic the brain's supercomputing powers in silicon -- because the messy, redundant processes inside our heads actually make for a small, light, superfast computer.
TED Talks
Xavier Vilalta: Architecture at home in its community
When TED Fellow Xavier Vilalta was commissioned to create a multistory shopping mall in Addis Ababa, he panicked. Other centers represented everything he hated about contemporary architecture: wasteful, glass towers requiring tons of...
SciShow
5 Amazing Feats of Animal Engineering
You might consider humans or beavers to be the best engineers on the planet, but these 5 other animals go to great lengths to put our houses and dams to shame. Chapters SOCIABLE WEAVER 0:38 GREAT BOWERBIRD 2:13 PUFFERFISH 3:39 4 ORIENTAL...
TED Talks
TED: A new perspective on the journey to net-zero | Amina J. Mohammed
Climate action can be a vehicle to deliver dignity, opportunity and equality for all. UN Deputy Secretary-General Amina J. Mohammed invites us to reimagine what the journey to net-zero could look like if we invest in people's climate...
TED Talks
TED: Why Africa needs community-led conservation | Resson Kantai Duff
Conservation efforts in Africa have typically been led by "parachute conservationists" -- outsiders who drop in thinking they have all the answers, hire locals to implement them and then disappear. But conservationist Resson Kantai Duff...
PBS
How the Chalicothere Split In Two
Two extinct relatives of horses and rhinos are closely related to each other but have strikingly different body plans. How did two of the same kind of animal, living in the same place, end up looking so different?
TED Talks
William Kamkwamba: How I built a windmill
When he was just 14 years old, Malawian inventor William Kamkwamba built his family an electricity-generating windmill from spare parts, working from rough plans he found in a library book.