How bones make blood | Melody Smith
Bones might seem rock-solid, but they're actually quite porous inside. Most of the large bones of your skeleton have a hollow core filled with soft bone marrow. Marrow's most essential elements are bl...
27 Tammi 20204min
Why is cotton in everything? | Michael R. Stiff
Centuries ago, the Inca developed ingenuous suits of armor that could protect warriors from even the fiercest physical attacks. These hardy structures were made not from iron or steel, but rather some...
24 Tammi 20204min
What was so special about Viking ships? | Jan Bill
As the Roman Empire flourished, Scandinavians had small settlements and no central government. Yet by the 11th century, they had spread far from Scandinavia, gaining control of trade routes throughout...
21 Tammi 20204min
Mating frenzies, sperm hoards, and brood raids: the life of a fire ant queen | Walter R. Tschinkel
In the spring, just after a heavy rainfall, male and female fire ants swarm the skies for a day of romance, known as the nuptial flight. Thousands of reproduction-capable ants take part in a mating fr...
16 Tammi 20204min
The Artists | Think Like A Coder, Ep 5 | Alex Rosenthal
This is episode 5 of our animated series "Think Like A Coder." This 10-episode narrative follows a girl, Ethic, and her robot companion, Hedge, as they attempt to save the world. The two embark on a q...
13 Tammi 20206min
Can you solve the dragon jousting riddle? | Alex Gendler
After years of war, the world's kingdoms have come to an agreement. Every five years, teams representing the elves, goblins, and treefolk will compete in a grand tournament of dragon jousting. You hav...
10 Tammi 20204min
The mysterious life and death of Rasputin | Eden Girma
On a night in 1916, Russian aristocrats set a plot of assassination into motion. If all went as planned, a man would be dead by morning, though others had already tried and failed. The monarchy was on...
8 Tammi 20204min
