Two of the most important are the spectroscope and the photographic camera.
It works on the principle of the spectroscope with modifications.
The instrument by which the observations are made is the spectroscope.
In Nature, 27-84, Capron says that because of the moonlight he had been able to do little with the spectroscope.
The spectroscope story is a particularly good example of the way reprisals of good work out.
But this is not all; soon a new use was found for the spectroscope.
The first photograph of a prominence, as shown by the spectroscope in daylight, was taken by Professor Young in 1870.
They are also revealed by the spectroscope in stars, comets and the sun.
This, when examined with the spectroscope, shows only one bright green line.
In both cases, it is necessary to confirm the results by means of the spectroscope.
spectroscope spec·tro·scope (spěk'trə-skōp')
An instrument for producing and observing spectra.
Any of various instruments used to analyze the component parts of a sample by separating its parts into a spectrum. ◇ In a light spectroscope, light is focused into a thin beam of parallel rays by a lens, and then passed through a prism or diffraction grating that separates the light into a frequency spectrum. The intensity of light at different frequencies in the spectrum can be analyzed to determine certain properties of the source of the light, such as its chemical composition or how quickly it is moving. ◇ In a mass spectroscope, sample ions are beamed through an electric or magnetic field that deflects the ions; the amount of deflection depends on the ratio of their mass to their electric charge. The ion beam is thus split into separate bands; the collection of bands is called the mass spectrum of the sample, and can be analyzed to determine the distribution of ions in the sample. Spectroscopes are also called spectrographs.