Learn how to make a simple DIY pendulum using a ping pong ball and basic household materials. This step-by-step guide shows ...

For more than a century, scientists have wondered why physical structures like blood vessels, neurons, tree branches, and ...

Two Palestinian youth react to the news of the ceasefire between Israel and Hamas from Khan Younis. Ramadan Abed/Reuters A long-awaited ceasefire between Israel and Hamas is finally underway, and now ...