# CARA outreach / Yerkes Winter Institutes / Schedule from 1994.

*This document assumes you have read the general
information on the YWIs.*

### Daytime workshops

**Geometry Workshop**
- Instructor: Wisecup

Students reviewed the basic geometry concepts involved in the other
labs. For example, similar triangles are essential for understanding
the inverse square law.
**Infrared Telescopes**
- Instructor: Sweitzer

This lab investigated the optics of simple lenses and constructed
"infrared telescopes" that used liquid crystals in their focal plane.
**Spectroscopy**
- Instructor: Duncan

Lab introduced students to simple grating spectroscopes and
observations that can be made with them.
**Inverse Square Law**
- Instructor: Dreiser

Students derived inverse square law from geometric and hands-on
investigations.

### Nighttime Workshops

**Cosmic Challenges**
- Instructor: Sweitzer and Brass

Students competed in smaller teams to identify constellations and stars
in the winter sky.
**Nebula Observing**
- Instructor: Dreiser and Duncan

Other half of the group learned to use Yerkes 10-inch telescope. This
involved a brief introduction to setting circles and the types of
objects they observed.