Mon. 07 Jul 2025 ☀️ 29°C in Columbus

📚 Now You Know It

On this day back in 1847: First Odometer Use by Mormon Pioneers Marks a Navigation Breakthrough

On this day back in 1847: First Odometer Use by Mormon Pioneers Marks a Navigation Breakthrough

Now You Know • 12 May 2025 • 55 days ago

Discover how the first odometer, used by Mormon pioneers on May 12, 1847, revolutionized navigation during westward expansion. This innovation shap...

Your Brain Eats Itself to Stay Healthy: The Fascinating Science of Neural Phagocytosis

Your Brain Eats Itself to Stay Healthy: The Fascinating Science of Neural Phagocytosis

Now You Know • 10 May 2025 • 57 days ago

Yes, your brain literally eats parts of itself—on purpose. Discover how phagocytosis helps your brain stay healthy by removing dead cells and unnec...

What Really Happens If You Don’t Sleep for 7 Days? The Science Behind Extreme Sleep Deprivation

What Really Happens If You Don’t Sleep for 7 Days? The Science Behind Extreme Sleep Deprivation

Now You Know • 08 May 2025 • 59 days ago

Curious about what happens if you don’t sleep for a week? Explore the real mental and physical side effects of 7-day sleep deprivation and why it's...

How E = mc² Changed the World: From Einstein’s Discovery to Today’s Science and Tech

How E = mc² Changed the World: From Einstein’s Discovery to Today’s Science and Tech

Now You Know • 07 May 2025 • 60 days ago

Explore the full impact of E = mc²—its origin, history, real-world uses, and how it powers modern science, medicine, and energy with long-lasting r...

This Island Is So Remote, Most People Don’t Believe It Exists

This Island Is So Remote, Most People Don’t Believe It Exists

Now You Know • 05 May 2025 • 62 days ago

Tristan da Cunha is the world’s most remote inhabited island, with no airport, no hotels, and barely any visitors. Yet, over 250 people still call ...

The Rifle That Changed War: Inside the Legacy of the M1 Garand

The Rifle That Changed War: Inside the Legacy of the M1 Garand

Now You Know • 03 May 2025 • 64 days ago

Discover how the M1 Garand revolutionized warfare with its semi-automatic design, iconic reload sound, and enduring impact on military history and ...