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Visible Spectrum and Color
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NASA Why? Files segment describing the visible spectrum and the colors that make up white light.
What is this glowing bubbles?
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That's so me! Are you Mrs. Neal?
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Yes I am, and you must be the treehouse detectives.
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Yes we are.
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Wow, look at those bubbles. It looks like a rainbow.
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You were just talking about the colors of a rainbow.
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How can I help you?
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We need to know more about the visible spectrum.
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Tell me what you've learned so far.
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Waves have different frequencies.
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And different frequencies mean different colors.
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Each of the waves and the frequencies is called the electromagnetic spectrum.
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The part that our eyes can see is only a very small part of the electromagnetic spectrum.
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And that's the part we call visible spectrum.
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That makes sense.
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Would the other parts of the spectrum do anything?
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Oh yes!
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Televisions and radios and microwaves and cell phones all work on the electromagnetic spectrum.
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So tell us more about the visible spectrum.
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The visible spectrum consists of all the colors our eyes can see.
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Like orange, red, and yellow.
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And green, blue, and violet.
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That's right.
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Take a look at this color wheel.
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We can mix those colors to make all the colors our eyes can see.
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If we mix all the colors with white, we get white light.
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How can we see the colors in white light?
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We use a spectrometer to pick out the different frequencies.
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Mr. Turner showed us one of those.
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Let me show you something.
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When you mix the three primary colors of pigment,
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you get black because pigment absorbs all the light that hits it.
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That's what pigment is.
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But light is different?
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Yes, it is.
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The primary colors of light are red, green, and blue.
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And when you mix those three, you get white light.
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I hope you learned a lot about the electromagnetic spectrum today.
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The museum has a room full of light and color that tracks your motions.
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I think you might want to check it out.
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Let's go.
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Thanks, Ms. Neal.
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Bye.
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- Idioma/s:
- Niveles educativos:
- ▼ Mostrar / ocultar niveles
- Nivel Intermedio
- Autor/es:
- NASA LaRC Office of Education
- Subido por:
- EducaMadrid
- Licencia:
- Reconocimiento - No comercial - Sin obra derivada
- Visualizaciones:
- 381
- Fecha:
- 28 de mayo de 2007 - 15:32
- Visibilidad:
- Público
- Enlace Relacionado:
- NASAs center for distance learning
- Duración:
- 01′ 55″
- Relación de aspecto:
- 4:3 Hasta 2009 fue el estándar utilizado en la televisión PAL; muchas pantallas de ordenador y televisores usan este estándar, erróneamente llamado cuadrado, cuando en la realidad es rectangular o wide.
- Resolución:
- 480x360 píxeles
- Tamaño:
- 11.66 MBytes
