Train whistles ARE one of the greatest sounds in the world, and he meant Steam Train whistles. The 700 here has been chugging around Portland during the holidays and something about that long build of water vapor tones hits a hard to access spot in my brain. It's aural time travel. Fingers crossed I can get ahead on work this week so I can drag my family down to Oaks Park and ride one of the excursions. One of you brainiacs out there hurry up and figure out a new power source that will involve us using steam to motor around again!