Learn how gradient descent really works by building it step by step in Python. No libraries, no shortcuts—just pure math and code made simple.

The agent acquires a vocabulary of neuro-symbolic concepts for objects, relations, and actions, represented through a ...

Learn how to implement SGD with momentum from scratch in Python—boost your optimization skills for deep learning. Mike Johnson gives update on Jan. 6 plaque Alaska received 7 feet of snow, sinking ...

Brenna Henn had a long-term grant to study the genetic diversity of Africans and people of African descent. Then her N.I.H. funding was cut. Credit...Andri Tambunan for The New York Times Supported by ...

Color gradient filament is fun stuff to play with. It lets you make 3D prints that slowly fade from one color to another along the Z-axis. [David Gozzard] wanted to do some printing with this effect, ...

January 28, 2026 • To the casual observer, it might seem like the U.S. has spent years in a constant state of protest — and they’re only getting more intense under the second Trump administration. So ...

In The Descent, an outdoor adventure goes terribly wrong for six friends who enter caves looking for fun but find murderous creatures within the depths. Jen Karner has spent the last 10 years covering ...