✨🌈🪐 Videos & News Today • September 18, 2025

Author

Michael Cosentino
September 18th, 2025

Daily knowledge and wonder. Share it with a kid.

In today's science news: the oldest cave writing ever discovered 🏺, a sunscreen that protects coral reefs 🪸, and why 262 million birds flew overhead last night 🐦. Plus, more headlines after today's videos 👇

Thanks for reading and have a great Thursday. If you enjoy our daily newsletter, please recommend it to a friend. –MC

 

🧱 🚗 💧 Today on TKSST

What happens when a remote-controlled LEGO car meets an increasingly tall LEGO wall? The builder behind Brick Technology approaches this obstacle with methodical creativity, building six iterations of a wall-scaling vehicle that can drive smoothly before and after the climb.

 

Water flowing upward through a tube before flowing back down the other side—that’s a siphon in action. In this video, science YouTuber and author Steve Mould investigates how tall he can build a siphon before it stops working. But why does it break? Is there a maximum siphon height? “Everyone…

 

🪐🧬🧠 Today’s science news

🏺 Scientists found 40,000-year-old symbols in caves that might be humanity's first writing system • Open Culture

🪸 Researchers developed an effective sunscreen that doesn’t harm coral reefs • Live Science

💡 How Edison improved the lightbulb but didn't invent it • BGR

🐦 Last night 262 million birds migrated overhead, as seen on weather radar across America • Popular Science

☄️ New evidence suggests an exploding comet wiped out ancient Clovis culture 12,800 years ago • Science Alert

🐵 UC Berkeley researchers found that wild chimpanzees consume the equivalent to 1-2 alcoholic drinks a day • Phys.org

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