![In 1800 astronomer William Herschel, out of curiosity, used a prism and placed a thermometer on each color of the spectrum to see if there was a difference. He had an extra In 1800 astronomer William Herschel, out of curiosity, used a prism and placed a thermometer on each color of the spectrum to see if there was a difference. He had an extra](https://preview.redd.it/su3g24ph5gz71.jpg?auto=webp&s=b403b7b9276cbc21c83ab77922f5f51524bddc66)
In 1800 astronomer William Herschel, out of curiosity, used a prism and placed a thermometer on each color of the spectrum to see if there was a difference. He had an extra
![Sir Frederick William Herschel, 1738 – 1822 German-born British astronomer Hand writing sample, Stock Photo, Picture And Rights Managed Image. Pic. XY2-1412553 | agefotostock Sir Frederick William Herschel, 1738 – 1822 German-born British astronomer Hand writing sample, Stock Photo, Picture And Rights Managed Image. Pic. XY2-1412553 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/27aaa74392aeb0c24a3d98d683451f92/xy2-1412553.jpg)
Sir Frederick William Herschel, 1738 – 1822 German-born British astronomer Hand writing sample, Stock Photo, Picture And Rights Managed Image. Pic. XY2-1412553 | agefotostock
![William Herschel Quote: “An object is frequently not seen from not knowing how to see it, rather than from any deficit in the organ of vision. I ...” William Herschel Quote: “An object is frequently not seen from not knowing how to see it, rather than from any deficit in the organ of vision. I ...”](https://quotefancy.com/media/wallpaper/3840x2160/7851929-William-Herschel-Quote-An-object-is-frequently-not-seen-from-not.jpg)
William Herschel Quote: “An object is frequently not seen from not knowing how to see it, rather than from any deficit in the organ of vision. I ...”
![Investigation of the cause of that indistinctness of vision which has been ascribed to the smallness of the optic pencil. By William Herschel, LL.D. F.R.S. Read at the Royal Society, June 22, Investigation of the cause of that indistinctness of vision which has been ascribed to the smallness of the optic pencil. By William Herschel, LL.D. F.R.S. Read at the Royal Society, June 22,](https://archive.org/download/bim_eighteenth-century_investigation-of-the-cau_herschel-sir-william_1786/bim_eighteenth-century_investigation-of-the-cau_herschel-sir-william_1786_itemimage.png)
Investigation of the cause of that indistinctness of vision which has been ascribed to the smallness of the optic pencil. By William Herschel, LL.D. F.R.S. Read at the Royal Society, June 22,
![William Herschel Quote: “An object is frequently not seen from not knowing how to see it, rather than from any deficit in the organ of vision. I ...” William Herschel Quote: “An object is frequently not seen from not knowing how to see it, rather than from any deficit in the organ of vision. I ...”](https://quotefancy.com/media/wallpaper/3840x2160/7012370-William-Herschel-Quote-An-object-is-frequently-not-seen-from-not.jpg)