| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| ryangaia | "Thank you @cfastie for answering this and mentioning that that helium "does not have much thermal mass". The temperature was my main hypothesis. No..." | Read more » | almost 5 years ago | |||
| ryangaia | "Lead (Pb) It is from brake dust and other particulates as most cars are worn down on freeways. Its not in Fuel anymore, but legacy Pb from fuel may..." | Read more » | almost 5 years ago |