// StartMathJax Script window.MathJax = {loader: {load: [ 'input/asciimath', 'ui/lazy', 'output/chtml', 'ui/menu']} }; (function() { var script = document.createElement('script'); script.src = "https://cdn.jsdelivr.net/npm/mathjax@3/es5/startup.js"; script.async = true; document.head.appendChild(script); })(); ---------- (Different files) ---------- // UpdateTypeset Script config = { attributes: true, childList: true, subtree: true }; // Callback function to execute when mutations are observed callback = (mutationList, observer) => { for (mutation of mutationList) { if (mutation.type === 'childList') { console.log('A child node has been added or removed.'); MathJax.typeset(); } else if (mutation.type === 'attributes') { console.log(`The ${mutation.attributeName} attribute was modified.`); } } }; // Create an observer instance linked to the callback function observer = new MutationObserver(callback); document.onreadystatechange = () => { if (document.readyState === 'complete') { console.log("Loaded fully according to readyState") targetNode = document.getElementById('content-wrapper') console.log(targetNode) // Start observing the target node for configured mutations observer.observe(targetNode, config); } }
top of page

Davy's Safety Lamp used for the First Time

Updated: Jul 21, 2023

#18 Science in History

09 January 1816


On this day in 1816, the Davy safety lamp was trialled at Hebburn Colliery in North-East England.



The safety lamp was a crucial invention that saved countless lives in coal mines around the world.


In the early 19th century, explosions caused by the ignition of flammable gases such as methane were a common hazard in coal mines.




Davy's safety lamp was the first of its kind to be used in a coal mine. It worked by enclosing the flame in a wire gauze screen, which prevented the flame from coming into contact with flammable gases. Additionally, the lamp's flame changed colour in the presence of methane, serving as a warning to the miner to take protective action.


The first trial of the Davy lamp was a complete success. For his invention, Davy was awarded the Rumford Medal by the Royal Society and given a sum of £2,000 in silver.





Comments

Rated 0 out of 5 stars.
No ratings yet

Add a rating
bottom of page