One a day, plus iron

ah. yes, you are, of course, correct. the franklin institute is an odd and not entirely rationally designed place (which seems strange for a science museum, imo).

of course, sometimes lack of signage is intentional. i useta workin a picture framing shoppe on walnut street in philly. on walnut street, there were signs up that said "NO PARKING 4PM-7PM." intent was to open walnut street from 2 lanes to 3 lanes during rush hour. at 3:59 the meter maids would gather at the corners and at 4:00 exactly every car on the street got a ticket. any cars still on the street at 4:10 got towed. it takes the philadelphia parking authority tow trucks exactly 60 seconds from arrival to extract a car and begin dragging it down the street.

there was a 6 month period when the "NO PARKING 4PM-7PM" signs were disappeared, though the behavior of the parking authority did not change. calls and letters to the parking authority went unanswered. city revenues increased dramatically, until the day they towed the car of a prominent news anchorwoman who was in our shoppe. was in the 11oclock news that night, and the signs reappeared the next morning.

in the case of the franklin institute, it was probably just a budget oversight...