Factual error: The physicist is on a quest for magnesium oxide, but it's one of the easiest things to obtain; magnesium is used in some engines, alloy wheels, and the humble block of magnesium used in camping fire starters. One could simply cut a ribbon of it, set it alight, and voila! Magnesium oxide.
Factual error: After three years, the lights on the mining helmets are still working. The batteries would have corroded or discharged by then.
Upvote valid corrections to help move entries into the corrections section.
Suggested correction: Non-rechargeable lithiums and certain rechargeable batteries have a shelf life of years while retaining sufficient charge.
Factual error: The scientist's car wouldn't still be able to start after standing in the lab's parking lot for three years.
