Who invented the spectroscope?

Issac Newton
William Herschel
Joseph van Fraunhofer
Edwin Hubble
Joseph Ritter von Fraunhofer was a Bavarian physicist and optical lens manufacturer. He made optical glass and achromatic telescope objective lenses, invented the spectroscope, and developed diffraction grating.
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Answers by country

Issac Newton
William Herschel
Joseph van Fraunhofer
Edwin Hubble
answers
flagFrance
6%
13%
80%
0%
15
flagRepublic of Ireland
13%
20%
53%
13%
15
flagthe Philippines
17%
17%
51%
13%
29
flagAustralia
3%
25%
48%
22%
31
flagIndia
13%
23%
47%
14%
333
flagUnknown
8%
16%
41%
33%
12
flagthe United States
11%
35%
40%
12%
180
flagSwitzerland
10%
40%
40%
10%
10
flagPakistan
5%
22%
38%
33%
18
flagGreece
7%
15%
38%
38%
13
flagGermany
17%
21%
35%
25%
143
flagPoland
17%
23%
31%
26%
7682
flagthe United Kingdom
11%
30%
30%
26%
84
flagAustria
10%
39%
28%
21%
28
flagCanada
18%
31%
25%
25%
16
flagthe Netherlands
15%
30%
23%
30%
13