If you own a wall fan that’s got a little blade, it could be worth the extra cash.

In a recent Wall Street Journal article, researchers at Microsoft showed that they could change the blade on the fan to increase airflow, but there are still many questions about how the blades work.

For instance, how does the blade change as the fan is moving through the fan blades?

Here’s a quick overview of how fans work, along with the basics of how to change them.

The basic principles behind fan blades The basic principles of fan blades are the same as those found in the case of a normal fan, but they differ a little.

The blades of the fan are designed to rotate, but the blades are also designed to spin, and this spin helps to spin the blades.

The blades also spin when they’re pushed against each other, which is why you sometimes see the blades on the bottom of a fan on the floor.

You can also rotate the blades by moving the fan, and they can be spun by rotating the fan.

Here are some basic rules about how fan blades work: They spin, or move, depending on how they’re mounted to the fan