At first glance, it looks like the start of a human pregnancy: A ball-shaped embryo presses into the lining of the uterus ...

IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. This is a model of the Chicago, ...

Physics is the search for and application of rules that can help us understand and predict the world around us. Central to physics are ideas such as energy, mass, particles and waves. Physics attempts ...

1. Prelude -- 2. "... glorious Yankee Doodle" -- 3. Bandit capitalism -- 4. Wrenchings -- 5. Mega-machine -- 6. The first mass consumer society -- 7. Paper tigers ...