Lightboxes
Cart
alb3811616

Discovery of Infrared Radiation In Sunlight, 1800

In1800, Herschel was testing filters for the sun so he could observe sun spots. When using a red filter he found there was a lot of heat produced. He discovered infrared radiation in sunlight by passing it through a prism and holding a thermometer just beyond the red end of the visible spectrum. This thermometer was meant to be a control to measure the ambient air temperature in the room. He was shocked when it showed a higher temperature than the visible spectrum. Further experimentation led to Herschel's conclusion that there must be an invisible form of light beyond the visible spectrum. Frederick William Herschel (November 15, 1738 - August 25, 1822) was a German-British astronomer, technical expert, and composer.
Share
pinterestPinterest
twitterTwitter
facebookFacebook
emailEmail

Add to another lightbox

Add to another lightbox
add to lightbox print share
Do you already have an account? Sign in
You do not have an account? Register
Buy this image
Loading...
Title:
Discovery of Infrared Radiation In Sunlight, 1800
Caption:
In1800, Herschel was testing filters for the sun so he could observe sun spots. When using a red filter he found there was a lot of heat produced. He discovered infrared radiation in sunlight by passing it through a prism and holding a thermometer just beyond the red end of the visible spectrum. This thermometer was meant to be a control to measure the ambient air temperature in the room. He was shocked when it showed a higher temperature than the visible spectrum. Further experimentation led to Herschel's conclusion that there must be an invisible form of light beyond the visible spectrum. Frederick William Herschel (November 15, 1738 - August 25, 1822) was a German-British astronomer, technical expert, and composer.
Personalities:
Credit:
Album / Science Source
Releases:
Model: No - Property: No
Rights questions?
Image size:
4763 x 1997 px | 27.2 MB
Print size:
40.3 x 16.9 cm | 15.9 x 6.7 in (300 dpi)
Keywords: