Emily Jones

Imagine a world entirely encased in ice, from pole to pole, with glaciers flowing even in the heart of the tropics. This may sound like a scene from a post-apocalyptic science fiction movie, but it's a scenario that many geologists believe occurred not just once, but multiple times during Earth's history, long before humanity walked the planet.

At quitting time on March 25, 1911, a spark caught in a scrap bin on the eighth floor of the Asch Building in New York's Greenwich Village. The bin sat in the Triangle Shirtwaist Factory, a bustling garment workshop employing hundreds of immigrant youths.

When the B-24 Liberator heavy bomber first took to the skies in World War II, it carried the weight of a nation's hopes on its wings. The United States desperately needed a long-range, high-speed bomber capable of striking deep into the heart of Nazi Germany and Imperial Japan. On paper, the B-24 seemed perfect for the job.

Do you remember floppy disks? Those big, squarish items that your parents probably used to save their work on computers? While they might seem archaic now, floppy disks were at the heart of a revolution that had little to do with storing your school assignments.

In a future not so far off, your smartphone, computer, or front door may feature advanced biometric security to confirm your identity before granting access.

A stroll down the Champs Élysées. Resting beside the Luxembourg Gardens fountain. Gazing up at Gustave Eiffel’s towering namesake.