nmahmain copy 39088020680419 Purchased from the NMAH Library Endowment. How ed tech was born: Twentieth-century teaching machines-from Sidney Pressey's mechanized test-giver to B. F. Skinner's ...

Don't know much about history? These fascinating documentaries are a great way to immerse yourself in events that shaped the world. Our editors and experts handpick every product we feature. We may ...

Indian-origin man in Australia Prem Kumar records video of children after killing their mother. "What exactly they’ve seen, we don’t know. Obviously we’ll do our best to speak to those children," he ...

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Minecraft is one of the biggest games in the world, if not the biggest. How could a small indie game with no funding and only one developer become the phenomenon it is today? Let's take a trip down ...

The potato: Mash it, bake it, fry it … No matter how you slice it, the potato is the very manifestation of all that is ordinary. And yet the domesticated potato and all of its wild relatives have long ...

The Universal Declaration of Human Rights, which was adopted by the UN General Assembly on 10 December 1948, was the result of the experience of the Second World War. With the end of that war, and the ...

Perceived lenience toward men who have threatened or hurt women is understandably controversial. Yet momentum is growing for ...

The Archives of American Art makes its archival collections available for non-commercial, educational and personal use unless restricted by copyright and/or donor restrictions, including but not ...

In just a few decades, mobile phones have gone from a luxury reserved for the elite to an essential tool for billions of users. From the first in-car phones of the 1940s to the best smartphones of ...