Electromagnetic Spectrum

Documento sobre o estudo da química estelar por análise espectral.

Documento sobre o estudo da química estelar por análise espectral.

Did you know that white light can be created by combining three different light sources: red, blue and green? Through this unique application, try to create white light or light of any other color. Change the color of various objects by placing colored filters and masks in front of light sources. Study the results and enjoy making colors.

Did you know that white light can be created by combining three different light sources: red, blue and green? Through this unique application, try to create white light or light of any other color. Change the color of various objects by placing colored filters and masks in front of light sources. Study the results and enjoy making colors.

Take away concepts

• Electromagnetic waves occur in a continous spectrum based on their wavelength.
• EM waves of a particular range of wavelengths are give names such as infrared and visible.
• Unlike mechanical waves such as sound or earthquake waves, EM waves can travel through empty space.
• EM waves are used for communication with satellites and for observing the Earth from space.
• Sunlight is made up of EM waves.

PBS lesson where students explore various types of electromagnetc waves to better understand the electromagnetic spectrum.

The electromagnetic spectrum simulation takes the opportunity to show the wavelengths and frequencies related to each radiation.

Welcome to the Tour of the Electromagnetic Spectrum. This unique NASA resource on the web, in print, and with companion videos introduces electromagnetic waves, their behaviors, and how scientists visualize these data. Each region of the spectrum is described and illustrated with engaging examples of NASA science. Come and explore the amazing world beyond the visible!

Provided by NASA