Delta Board GameAs you know it's been over 150 years since the inventor of the Perpetual Steam Engine (or PSE), Louise Delargue, wrote her last diary entry before her disappearance. That someone could create an invention to seemingly power cities and other technologies forever, without publishing any findings, remains the biggest scientific folly in the era of PSE. We took the crystals for granted. The supply seemed endless and their energy seemed unending, but we