Expand Your Scuba Diving Knowledge – Learn, Understand & Dive Smarter in Koh Chang
Scuba diving is more than just an underwater adventure – it’s a skill, a science, and a lifestyle. At Chang Diving Center, we help divers at every level, from beginners to pros, build real-world knowledge that boosts safety, confidence, and enjoyment under water.
In this section you’ll find clear explanations of core topics like SAC rate & gas consumption, Nitrox basics, buoyancy & trim, dive planning & logbook use, and safety procedures (e.g., SMB). Complex theory is broken down into simple, practical steps – perfect prep for your Open Water course, a relaxed Fun Dive, or future technical training.
Apply what you learn on our Koh Chang dive sites – from colorful reefs to the HTMS Chang wreck. For planning your trip, pair these articles with our How-to Guides, Marine Life, and FAQs.
📘 Browse the Scuba Knowledge posts below – and make every dive in Koh Chang safer, smarter, and more rewarding.
1 — 🧠 Diving Physics & Boyle’s Law
Pressure, gas expansion and real dive examples — the simple foundation behind buoyancy, air use and safe ascents.
2 — 🧪 Dalton & Henry
Partial pressure, narcosis, oxygen limits and how gas dissolves in your body — the theory behind tables and computers.
3 — ⚖️ Archimedes’ Principle & Lift Bags
Archimedes’ principle, displacement, lift bags and why Boyle’s Law matters for search & recovery.
💨 Gas Consumption
Learn to calculate your SAC rate and plan gas usage professionally – essential for every diver.
🌬️ Why Nitrox
Discover the benefits of enriched air for safer and longer diving – exclusively filled at Chang Diving.
🔍 Search & Recovery
From lost items to shipwrecks – learn effective equipment and techniques for underwater recovery.
📋 Dive Logbook
Why keeping dive logs is important – what to record, track progress, and benefits for courses.
🎈 SMB Guide
Everything divers should know about SMBs – colors, meanings, and proper usage techniques.
✅ Safety Check
Essential pre-dive safety checks and BWRAF procedures for safe diving on Koh Chang.
👥 The Buddy System
Learn proper buddy procedures, separation protocol, and your responsibility as a certified diver.
⏱️ Safety Stop
Learn about safety stops vs decompression stops, proper technique, and why they matter for safe diving.
📉 NDL Explained
What no-decompression limits mean, why tables are only part of the story, and how dive computers fit real multi-level dives.
💻 Using a Dive Computer
Practical guide for dive computers – learn universal basics + step-by-step Suunto Zoop Novo instructions.
💻 Best Dive Computers
Compare top dive computers of 2025 – Suunto D5, Garmin MK3i, and Shearwater TERIC reviewed.
🛸 Wreck Diving
Explore amazing shipwrecks around Koh Chang – HTMS Chang, T11, Koho Maru 5 and more.
📚 Theory Review
Complete beginner and review briefing covering pressure, equalization, BCD basics, essential diving skills, and interactive quiz.
