Talk:Noble gas

Hindenburg and helium
There are two references on the page implying that helium was only used as a replacement for hydrogen after the Hindenburg disaster. This is false. The US operated helium-filled airships contemporary with the Hindenburg, including the USS Akron (ZRS-4) and USS Macon (ZRS-5). The Hindenburg used hydrogen because they didn't have access to helium, a resource extracted from natural gas deposits available only to the US and Russia. Neither were willing to sell this strategic military resource to Nazi Germany for obvious reasons. The Hindenburg's use of hydrogen was a political issue, not an engineering/science issue. — Preceding unsigned comment added by 24.108.138.101 (talk) 20:32, 25 February 2024 (UTC)


 * (Please use the Add Topic button in future)
 * If you have a reliable source, please let us know. See WP:FULLCITE Johnjbarton (talk) 22:47, 25 February 2024 (UTC)

Radon discharge color
What color does radon glow in an electric discharge tube? Did someone get rid of it, or am I mistaken? 2600:1008:B11F:5DF9:2099:8782:E2A8:765E (talk) 21:11, 30 August 2023 (UTC)
 * Nobody ever tried it experimentally, I think. Probably it glows violet-blue. Double sharp (talk) 04:22, 25 December 2023 (UTC)
 * I've seen sources conflicting on this matter. Some say it glows green, others say it glows red. Its use is very limited by its radioactivity, making it impractical for commercial purposes. I suppose it has only been experimental. 174.103.211.175 (talk) 16:09, 5 July 2024 (UTC)