Inside the Obama Presidential Center 😳 Legacy, Library & Park Tour!

Vatican Museums Skip the Line Tour | Vatican Museum Tickets, Sistine Chapel & Rome Travel Guide

The Foucault Pendulum: Unveiling Earth’s Rotation 🌎 The Foucault Pendulum is a visual demonstration of the Earth’s rotation. Named after Jean Bernard Leon Foucault, the French physicist who invented it, the Foucault Pendulum was first exhibited in 1851 at the World’s Fair in Paris Throughout the day, the direction of the pendulum’s swing appears to change. Actually, Earth is turning under the pendulum as it swings. At Houston’s latitude (30° N.) the pendulum will precess through 180° or halfway

Our M3 Stuart is pretty special ✨ #thetankmuseum #militaryhistory #ww2 #tanks #famthetankman

April 20th is Chinese Language Day, an annual observance established by the United Nations to celebrate multilingualism, cultural diversity, and honor the Chinese language, which is one of the oldest written languages in the world. Word of gold in California spread all over the world by 1849. By 1851, over 25,000 Chinese immigrants came to California, a land that many Chinese people called “Gam (Jin) Saan,” or “Gold Mountain.” San Francisco was the first city many Chinese immigrants arrived to b

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