Freed eXplore<p>Welcome to the depths of this abandoned quarry, as we explored this timeless corridor, one detail stood out: a chemical formula written directly on the wall.</p><p>CaC₂ + 2H₂O → C₂H₂ + Ca(OH)₂</p><p>That’s the reaction inside carbide lamps. Calcium carbide reacts with water to produce acetylene gas, which burns with a bright, warm flame. It feels raw and full of character.</p><p>📷 Nikon Z6 | 14-24mm | 2,5s | f/8 | ISO 400</p><p><a href="https://mastodon.social/tags/Caving" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Caving</span></a> <a href="https://mastodon.social/tags/Photography" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Photography</span></a> <a href="https://mastodon.social/tags/Urbex" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Urbex</span></a> <a href="https://mastodon.social/tags/Lamp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Lamp</span></a> <a href="https://mastodon.social/tags/Acetylene" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Acetylene</span></a> <a href="https://mastodon.social/tags/Natgeoadventure" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Natgeoadventure</span></a></p>