Scuba Diving

• Early Innovations

  • 1300s: Small cauldron-shaped bell
  • 1690: Edmund Halley's improved bell
  • 1715: John Lethbridge's diving engine
• 19th Century Developments

  • 1823: Deane's smoke mask
  • 1825: James's scuba with air reservoir
  • 1837: Siebel's closed suit
• Modern Innovations

  • 1843: First Diving School
  • 1866: Aerophore invention
  • 1943: Cousteau and Gagnan's modern SCUBA
• Purposes of Scuba Diving

  1. For recreation and exploration
  2. For technical and commercial purposes
  3. For military applications
• Recreation and Exploration

  • exploring marine life
  • engage in underwater photography and videography to capture the beauty of the aquatic world
• Technical and Commercial Purposes

  • exploring submerged caves and sunken shipwrecks
  • engaging in underwater construction and coastal repairs
• Military Applications

  • conducting submarine surveillance
  • carrying out mine clearance and recovery missions
• Scuba Diving Requirements

  Age, Health, and Disabilities

  • Age restrictions and certifications
  • Physical fitness and medical clearance
• Scuba Diving Requirements: Swimming Skills

  • water confidence
  • basic swimming skills
• Scuba Diving Requirements: Essential Tools

  • dive mask
  • snorkel tube
  • regulator
  • buoyancy control device or BCD
  • diving octopus
  • weight belt
• Scuba Diving Requirements: Additional Equipment

  • pressure gauge
  • scuba tank
  • fins
  • scuba or wet suit
  • other accessories
• Other Skills Needed in Scuba Diving

  Pre-dive to Ascending

  • Safety checks and controlled descent
  • Gradual ascent and proper signaling