They can also place their hands between the dish and the focal point. They will see a rise in intensity on the chart recorder. People emit radio waves. The emission process is thermal. Visitors synthesize the entire process of detecting radio waves from space.
Visitors participate in science by using a radio telescope.
Exhibit Group 3. This exhibit would allow visitors to observe and graph continuum and spectral line radiation from light sources and radio sources. The spectrum produced by an incandescent bulb can be displayed on a monitor allowing visitors to see that the emission is a blackbody curve continuous over a range of wavelengths. Visitors will also note that the peak emission is in the infrared, rather than in the visible. They can compare this spectrum graph to others of hotter objects, and to astronomical objects like a star, or the cosmic microwave background.