🔭 Science
36 cards
- Atmospheric Refraction: Why the Horizon Is Not Where You Think 📐 Measuring the Earth
- Dip of the Horizon: How Far Can You See? 📐 Measuring the Earth
- Einstein in Your Pocket ⏱️ Relativity
- Eratosthenes' Shadow (240 BCE) 📐 Measuring the Earth
- GRACE: Weighing the Earth with Two Chasing Satellites 🌐 Measuring the Earth from space
- Gravity Is a One-Way Street: Pumped-Storage Hydro 🌊 Gravity & tides
- Great-Circle Navigation: How Ships Actually Cross a Sphere 📍 Navigation
- How a Spacecraft Steals Speed from a Planet 🛰️ Orbital mechanics
- How Do You Reach a Higher Orbit? 🛰️ Orbital mechanics
- How Fast Is 'Orbit'? 🛰️ Orbital mechanics
- How Much Fuel Does It Take to Reach Geostationary Orbit? 🛰️ Orbital mechanics
- How Radio Waves Measure Worlds 📐 Measuring the Earth
- How Your Phone Knows Where You Are 📍 Navigation
- Kepler's Third Law 🛰️ Orbital mechanics
- Lunar Laser Ranging: Millimetre Precision on the Moon 🌐 Measuring the Earth from space
- Measuring the Distance to the Stars 📐 Measuring the Earth
- Satellite Altimetry: Measuring Sea Level to the Centimetre 🌐 Measuring the Earth from space
- Sextant Math: How the Stars Give You Your Position 📍 Navigation
- The Atmosphere Is a Gradient, Not a Layer 📐 Measuring the Earth
- The camera in your phone is part NASA 📐 Measuring the Earth
- The Coriolis Effect: When It Matters, and When It Doesn't 🔄 Rotation & tilt
- The Midnight Sun 🔄 Rotation & tilt
- The Rocket Equation 🛰️ Orbital mechanics
- The Sagnac Effect: Measuring the Earth's Rotation with Light 🔄 Rotation & tilt
- The Scale of the Earth 📐 Measuring the Earth
- Time: How We Measure It, and Why It Is a Hot Topic ⏱️ Relativity
- Units of Measurement: Why Standard Units Matter 📐 Measuring the Earth
- VLBI: Measuring the Earth with Radio Waves 🌐 Measuring the Earth from space
- Where in Space Can an Object Sit 'Still'? 🛰️ Orbital mechanics
- Why Do Some Orbits Lock Together? 🛰️ Orbital mechanics
- Why Jupiter Has Two Asteroid Camps 🛰️ Orbital mechanics
- Why Orbits Are Ellipses 🛰️ Orbital mechanics
- Why Planets Are Spheres 🌊 Gravity & tides
- Why the Earth Is a Squashed Sphere 📐 Measuring the Earth
- Why the ISS Doesn't Fall Out of the Sky 🛰️ Orbital mechanics
- Why the Moon Pulls the Oceans 🌊 Gravity & tides