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3 results for “compass”.

• Cara Mengira Jarak Sebenar Daripada Skala Peta, dan Mengapa Garis Lurus Selalu Menyesatkan
  Skala pada peta cuma satu nisbah, tetapi orang tersilap membacanya dengan cara yang memendekkan perjalanan. Ini cara menukar sentimeter pada kertas kepada kilometer di bumi, dan mengapa jarak yang anda berjalan hampir sentiasa lebih panjang daripada jarak yang anda ukur.
• How Birds Migrate: The Compass, the Map, and the Fuel Engineering of Flight
  A bar-tailed godwit flies eleven thousand kilometres non-stop across the Pacific — no food, no water, no rest. Bird migration is not a journey; it is a piece of biological engineering with a compass, a calendar, and a metabolic budget. Here is how it works.
• Earth's Magnetic Field: How a Churning Core Shields the Surface
  A compass points north because the outer core is a molten iron dynamo in motion — and that same invisible field deflects the solar wind that would otherwise strip our atmosphere. Here is how it works, why magnetic north keeps wandering, and what a reversal would actually do.