{
  "id": "/",
  "name": "blackholecalc.com - Your Ultra-Relativistic Explorer",
  "short_name": "BlackHoleCalc",
  "description": "52 calculators. 22 visualisations powered by real physics. Unique presets and notation. Information sections with formulae and full glossary. Advanced metrics covering mergers, gravitational waves, white holes, Planck stars, exotic physics, cosmology and more! 15 decimal places as standard, up to 125 for light speed velocities. Blackholecalc.com — your ultra-relativistic explorer!",
  "start_url": "/",
  "display": "standalone",
  "background_color": "#ffffff",
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  "orientation": "portrait-primary",
  "categories": ["education", "science", "physics", "calculator"],
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      "form_factor": "wide",
      "label": "Your ultra-relativistic explorer - 22 visualisations powered by real physics"
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  "icons": [
    {
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    {
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  ],
  "shortcuts": [
    {
      "name": "Length Contraction",
      "short_name": "Length",
      "description": "Calculate relativistic length contraction",
      "url": "/?tab=length",
      "icons": [
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          "src": "/images/icon-192.png",
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      ]
    },
    {
      "name": "Time Dilation",
      "short_name": "Time",
      "description": "Calculate relativistic time dilation",
      "url": "/?tab=time",
      "icons": [
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          "src": "/images/icon-192.png",
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        }
      ]
    },
    {
      "name": "Relativistic Mass",
      "short_name": "Mass",
      "description": "Calculate relativistic mass increase",
      "url": "/?tab=mass",
      "icons": [
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          "src": "/images/icon-192.png",
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    },
    {
      "name": "Gravitational Time Dilation",
      "short_name": "Gravity",
      "description": "Calculate gravitational time dilation (General Relativity)",
      "url": "/?tab=gravity",
      "icons": [
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      ]
    },
    {
      "name": "Black Hole Event Horizon",
      "short_name": "Event Horizon",
      "description": "Calculate Schwarzschild radius and event horizon",
      "url": "/?tab=event-horizon",
      "icons": [
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          "src": "/images/icon-192.png",
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    },
    {
      "name": "Hawking Radiation",
      "short_name": "Hawking Temp",
      "description": "Calculate black hole Hawking temperature",
      "url": "/?tab=hawking-temp",
      "icons": [
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          "src": "/images/icon-192.png",
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    },
    {
      "name": "Black Hole Tidal Forces",
      "short_name": "Tidal Forces",
      "description": "Calculate spaghettification near black holes",
      "url": "/?tab=tidal-forces",
      "icons": [
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      ]
    },
    {
      "name": "Black Hole Entropy",
      "short_name": "Entropy",
      "description": "Calculate Bekenstein-Hawking entropy and information content",
      "url": "/?tab=entropy",
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        {
          "src": "/images/icon-192.png",
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      ]
    },
    {
      "name": "Interactive Visualizations",
      "short_name": "Visualizations",
      "description": "Explore black hole physics with interactive graphics",
      "url": "/?tab=visualizations",
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