More than 1.23 billion chicken wings will be devoured as football fans watch the San Francisco 49ers take on the Baltimore Ravens in the Super Bowl... Just five wings have more calories, fat, and cholesterol than a Big Mac. Sickening, but more nauseating: Most chicken products people eat are tainted with feces.

A typical large processing plant may slaughter more than a million birds per week. There, chickens are stunned, killed, bled, and sent through scalding tanks, which help remove feathers but also act as reservoirs that transfer feces from one carcass to another. After scalding, feathers and intestines are mechanically removed. Intestinal contents can spill onto machinery and contaminate the muscles and organs of the chicken and those processed afterward.

A single track is used, on which railway-cars are caused to travel. Two cars are rushing towards each other at a speed of twenty-five miles an hour, so that a collision would, under ordinary conditions, be inevitable, when suddenly one of the cars runs, not into, but over the top of the other and lands on the track on the other side, where it continues in perfect safety to its destination. The underneath car has proceeded as if nothing had happened.

The cars, although they run upon wheels, are really travelling bridges, with overhanging compartments for the accommodation of passengers. Over the framed structure of the cars thus constituted an arched track is carried, securely fastened to the car and serving the purpose of providing a road-bed for the colliding car. This superimposed track is built in accordance with well-understood principles of bridge construction.