Browse Items (1445 total)

Roemer, Elizabeth, 11 Year Sun-Spot Cycle, 1946

Page from Elizabeth Roemer's high school project

Tags: Astronomy, Comets, Elizabeth Roemer, Science, Women

Suffragists

Bristol's, Bristol's Recording Volt Meter, www.lowell.eduwww.lowell.edu

Bristol's recording volt meter

Thermograph

A thermometer that produces a continuous record of a fluctuating temperature.

Microbarograph

Instrument used to continuously record very small changes in atmospheric pressure.

Gauthier, Prontor II camera shutter

The Prontor is a long-lived series of leaf shutters

Arthur Adel/Carl Lampland, Rock Salt Prism in glass dome

From Adel-Lampland 40-inch Spectral radiometer
Removed 7/10/1991 by H. Giclas

Bacharach, Tempscribe

Device to record ambient temperatures over periods of time.

Bacharach, Tempscribe

Device to record ambient temperature over periods of time.

Pyrheliometer

A pyrheliometer is an instrument for measurement of direct beam solar irradiance.