Melody Smith: How bones make blood
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 blood stem cells and for patients with advanced blood cancers like leukemia and lymphoma, the best chance for a cure is often a bone marrow transplan...
Damien Riehl: Why all melodies should be free for musicians to use
Michael Tilson Thomas: Music and emotion through time