The Electromagnetic Spectrum - History

7 terms by allison_a

Create a new folder

Advertisement Upgrade to remove ads

Basically the people who researched the electromagnetic spectrum

Roger Bacon

Observed visible light in the 13th century

Sir Isaac Newton

Experimented with prisms in the 17th century

William Herschel

discovered infrared (increase in temperature just beyond the red end of the visible light spectrum) in 1800

Johann Ritter

observed that just beyond the violet end has the ability ot cause a chemical reaction with certain types of metals (UV) in 1801

Heinrich Hertz

generated and detected waves; expanded this experiment for higher frequencies - Radio waves and microwaves (in 1888)

Wilhelm Roentgen

discovered radiation while conducting experiments with cathode ray tubes - x-rays (1895)

Paul Villiard

discovered gamma rays (the "last" type of electromagnetic radiation)

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set