The teacher gave the students a quiz.

The teacher administered a quiz to the students. ochemical processes

We’re putting on clean suits and getting ready to film pieces and parts, and then edit them together. There’s a coater two and it has laminar flow which is why it works.

Welcome back to Smarter Everyday, I’ve been saying this for a while: film is back! Photos taken on film have a certain magic to them and many people love it, including me. This journey started at a lab where I got my film developed.

We then went to Kodak in Rochester, New York, to see their gigantic facility which has been making film for over a hundred years. We learned how they made the backing or the floppy part of the film, and about the accumulator which allows them to accumulate material inside the assembly line without ever stopping.

Today we’re going to start the next step of the process, which is to take those huge rolls of backing and load them into a huge machine. The goal is to apply a light sensitive coating to the top of the backer, and this is where the word ‘film’ comes from. Different kinds of film have different coatings.

We then visited the film sensitizing division and met Dr. Jeffrey Hanson, who has been doing this for over 30 years. He taught us how Kodak makes film, and understanding this process makes shooting with film even more rewarding. re

In this room, they control the operation. When we start, we’ll see up on the monitors Coater 1 and Coater 2, which uses an infrared camera to look for physical defects on the film. We’ll look at the left edge, right edge, and center. We’re using a portion of a center-fed hopper, and the water is running down the door for air balance. We’ll talk about that when we start coating. We’ll also talk about the floor and light box. The hopper has laminar flow, which is why it works. We have to keep the different layers from intermixing, and we’ll see the colors start when the lights go off. The hopper will slide back and engage the web underneath, and it’s a mile-long process. The hopper has different layers with five or six components, and each component has 10-20 different chemicals. We’re coating 54 inches wide on acetate, and by controlling the flow rate of each liquid, we can keep them in layers. We also use a curtain hopper, which will pop out of position quickly and drop 12-14 inches as a curtain. machine on a cushion of air and as it’s moving it’s  being dried out with cool air and the airflow is   keeping it from touching the drying bars?

Yes, Brian, that is correct. The film is riding all the way down the machine on a cushion of air and is being dried out with cool air. The airflow keeps it from touching the drying bars. Awesome all right