'000 km sec' diaporamas de présentation

Astro 201: Sept. 14, 2010

Astro 201: Sept. 14, 2010. Read: Hester, Chapter 4 Chaos and Fractal information on class web page On-Line quiz #3: available after class, due next Tuesday before class HW #3 on line Today: Light. LIGHT and Telescopes. LIGHT.

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Light

Light. Monday, October 6 Next Planetarium Shows: Tues 7 pm, Wed 7 pm. Visible light is one type of electromagnetic wave. Universe contains electrically charged particles: protons (+) and electrons (-). Charged particles are surrounded by electric fields and magnetic fields.

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The Milky Way Galaxy

The Milky Way Galaxy. Structure of the galaxy. The Milky Way is a spiral galaxy The galactic center is the thickest part. Around a dozen arms spin around the center. The Solar System is on the Orion Arm. Dimensions of the Milky Way.

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Why have formulas? Area of disc Speed, Distance, Time E = mc 2 Changing the subject

Why have formulas? Area of disc Speed, Distance, Time E = mc 2 Changing the subject. Why have formulas?. Formulas are designed to make maths easy. When presented with a new formula, learn what each letter stands for. Once this is known, the formula can be used.

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Bell-Ringers

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INTRODUCTION;

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light

Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum. The word usually refers to visible light, which is the visible spectrum that is visible to the human eye and is responsible for the sense of sight.[1] Visible light is usually defined as having wavelengths in the range of 400u2013700 nanometres (nm), or 4.00 u00d7 10u22127 to 7.00 u00d7 10u22127 m, between the infrared (with longer wavelengths) and the ultraviolet (with shorter wavelengths)

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T=0 microseconds

d = R-x. d = R-x. R (radius). R (radius). R (radius). y. x. d (=0). y. d = R-x. R (radius). x. x. y. x. T=0 microseconds. T=390 microseconds. T=330 microseconds. T=360 microseconds. What we have:. R = 2439.7 km t = 390 / 2 microseconds c = 300,000 km/sec. R (radius).

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