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Multiwavelength Milky Way

Multiwavelength Milky Way

Multiwavelength Milky Way Nine frames of Multiwavelength Milky Way credit: Dave Leisawitz Aitoff projections of Night Sky at Different Wavelengths, including 408 MHz, 240 mm, 3.5 mm, 2.5 eV, 2-10 keV, 511 keV, 1.809 MeV, > 100 MeV, and mulitwavelength mural

By benjamin
(452 views)

The Composition of the Universe

The Composition of the Universe

The Composition of the Universe. Eric R. Christian. Elements 2002 Workshop. What Do We Mean by “Composition”?.

By libitha
(201 views)

Introduction To Modern Astronomy II

Introduction To Modern Astronomy II

ASTR 113 – 003 Spring 2006. Lecture 01 Jan. 25, 2006. Introduction To Modern Astronomy II. Dr. Jie Zhang jzhang7@gmu.edu (703)993-1998.

By Jimmy
(209 views)

How to classify a star and to place it on the H-R diagram correctly??

How to classify a star and to place it on the H-R diagram correctly??

Need to know its luminosity, but it is difficult, because distance is unknown If you can estimate a star’s diameter and/or mass, you can figure out its luminosity Then you can also find the distance to this star. How to classify a star and to place it on the H-R diagram correctly??. 0.

By Sophia
(397 views)

Measuring the Hubble Constant

Measuring the Hubble Constant

Measuring the Hubble Constant. The Scale of the Universe I: The Solar System. Pluto is 5.913 billion km (39.53 AU) from the Sun. The Oort cloud extends much further than this: out to around 100,000 AU or about 2 ly . The next closest star, Alpha Centauri, is 4.2ly away. 1ly=9.46 x 10 12 km.

By Albert_Lan
(229 views)

Light and the Electromagnetic Spectrum

Light and the Electromagnetic Spectrum

Light and the Electromagnetic Spectrum. Light Phenomenon. Isaac Newton (1642-1727) believed light consisted of particles By 1900 most scientists believed that light behaved as a wave. The Electromagnetic Spectrum.

By omer
(197 views)

Fluorescent Lamps

Fluorescent Lamps

Fluorescent Lamps. Question:. A fluorescent lamp tube is coated with a white powder on its inside surface. If that powder were not there, would the lamp appear brighter, dimmer, or about the same overall brightness, but with an unpleasantly bright white line near its center?.

By latanya
(421 views)

Unit 9, Chapter 28

Unit 9, Chapter 28

Unit 9, Chapter 28. CPO Science Foundations of Physics. Unit 9: The Atom. Chapter 28 Inside the Atom. 28.1 The Nucleus and Structure of the Atom 28.2 Electrons and Quantum States 28.3 The Quantum Theory. Chapter 28 Objectives. Describe the structure of an atom.

By meli
(142 views)

Lecture 38

Lecture 38

Basic Properties of Stars (continued). Stellar Lives. Stellar Temperatures The Hertzsprung-Russell Diagram Groups of Stars and Their Lives. Lecture 38. Chapter 17.12  17.16. Surface Temperature. Surface temperature determines a star’ color.

By rasul
(208 views)

Classical vs Quantum Mechanics

Classical vs Quantum Mechanics

Classical vs Quantum Mechanics. Rutherford’s model of the atom: electrons orbiting around a dense, massive positive nucleus Expected to be able to use classical (Newtonian) mechanics to describe the motion of the electrons around the nucleus.

By zahur
(843 views)

Light and the Electromagnetic Spectrum

Light and the Electromagnetic Spectrum

Light and the Electromagnetic Spectrum. Light Phenomenon. Isaac Newton (1642-1727) believed light consisted of particles By 1900 most scientists believed that light behaved as a wave. . The Electromagnetic Spectrum.

By davis
(195 views)

Chapter 25 Instruments for Optical Spectroscopy

Chapter 25 Instruments for Optical Spectroscopy

Chapter 25 Instruments for Optical Spectroscopy. INSTRUMENT COMPONENTS

By amy
(780 views)

The Big Bang Theory:

The Big Bang Theory:

The Big Bang Theory:. Origin & Evolution of the Universe Hally Stone UB PASI 2010. Newton’s Static Universe. Universe is static and composed of an infinite number of stars that are scattered randomly throughout an infinite space.

By Antony
(792 views)

STAR BIRTH

STAR BIRTH

STAR BIRTH. Road to the Main Sequence. Star Birth – Road to the Main Sequence A Brief Woodland Visit. An Alien Visit

By koen
(191 views)

Spectroscopy

Spectroscopy

Spectroscopy. Astronomers can learn an immense amount from the details of lines in the spectrum of light coming from planets and stars. This tool is used by chemists, biologists, physicists and all of the other natural sciences. It is based on the quantum or particle (photon) nature of light.

By engelbert
(197 views)

Stars

Stars

Stars. Edward Murphy RARE CATS Summer 2001. Stellar Luminosity. The luminosity of a star is the rate at which it is giving off energy. Not all stars have the same luminosity. They range from 1/20 to 700,000 times the luminosity of the Sun. Luminosity varies with temperature.

By luz
(239 views)

SCIENCE ADMINISTRATION LECTURE 32 PARADIGM OF MECHANISM CHANGE! – QUANTUM MECHANICS ILLUSTRATION – QUANTUM MODEL OF T

SCIENCE ADMINISTRATION LECTURE 32 PARADIGM OF MECHANISM CHANGE! – QUANTUM MECHANICS ILLUSTRATION – QUANTUM MODEL OF T

SCIENCE ADMINISTRATION LECTURE 32 PARADIGM OF MECHANISM CHANGE! – QUANTUM MECHANICS ILLUSTRATION – QUANTUM MODEL OF THE ATOM FREDERICK BETZ PORTLAND STATE UNIVERSITY. PHILOSOPHY OF SCIENCE ADMINISTRATION. PROCESS OF STATE OF KNOWLEDGE KNOWLEDGE.

By kyria
(200 views)

Chapter 6 – Electron Structure of Atoms

Chapter 6 – Electron Structure of Atoms

Chapter 6 – Electron Structure of Atoms. Homework: 1, 2, 9, 10, 14, 15, 17, 19, 21, 23, 25, 28, 30, 31, 34, 35, 37, 39, 41, 42, 44, 47, 49, 51, 53, 55, 57, 58, 59, 60, 61, 62, 64, 66, 67, 70, 71, 72, 74, 78, 90. 6.1 – The Wave Nature of Light.

By livvy
(499 views)

NOTES FOR THE DAY: Waves: Characteristics: wavelength, λ --distance of repetition (crest to crest).

NOTES FOR THE DAY: Waves: Characteristics: wavelength, λ --distance of repetition (crest to crest).

NOTES FOR THE DAY: Waves: Characteristics: wavelength, λ --distance of repetition (crest to crest). frequency, f --no. of complete cycles passing a point in a given time (cycles/sec = Hertz or Hz). wave velocity, v --the speed of a crest (m/s).

By gianna
(126 views)

Does Science have Limits?

Does Science have Limits?

Does Science have Limits?. Dr. Ard Louis Department of Physics University of Oxford. Biological self-assembly. http://www.npn.jst.go.jp/ Keiichi Namba, Osaka Biological systems self-assemble (they make themselves) Can we understand? Can we emulate? (Nanotechnology). Virus self-assembly.

By toni
(148 views)

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