• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Activity III: Calibrating Images
Activity III: Calibrating Images

... When you observe stars with your eyes, or with a telescope, you are receiving starlight that has traveled vast distances. Amazingly, the light remains virtually unaffected by the first 99.999999999999% or so of its journey. However, in the trip through the Earth’s atmosphere, and even through the op ...
Cygnus X-2, super-Eddington mass transfer, and pulsar binaries
Cygnus X-2, super-Eddington mass transfer, and pulsar binaries

Neutrinos and Nucleosynthesis
Neutrinos and Nucleosynthesis

Cataclysmic Cosmic Events and How to Observe Them www.springer.com/series/5338
Cataclysmic Cosmic Events and How to Observe Them www.springer.com/series/5338

... known; the former shine at us across billions of light-years due to the radiation from the nucleus of a galaxy surrounding a billion-solar-mass black hole. The latter, in the most violent cases, shine briefly but violently, the result of a single supermassive star disappearing from our universe into ...
The Celestial Sphere CHAPTER 1
The Celestial Sphere CHAPTER 1

Chapter 12
Chapter 12

The ages of pre-main-sequence stars
The ages of pre-main-sequence stars

NSDL_WS_1_Astonomy
NSDL_WS_1_Astonomy

... http://www.compadre.org/Astronomy Hubble Space Telescope http://hubblesite.org International Year of Astronomy 2009 http://astronomy2009.us http://astronomy2009.org ...
Constraining tidal dissipation in F-type main
Constraining tidal dissipation in F-type main

Magnitudes - Astronomy @ Walton High School
Magnitudes - Astronomy @ Walton High School

1. The Birth of a Star
1. The Birth of a Star

... amount your eyes might pick up looking into space without a telescope. However, hidden in that darkness are billions more stars, too dim or far away to see with just our eyes. To see more of them, press and hold down the { ] } key on your keyboard. WOW! The stars you see before you are part of a muc ...
Ch 33) Astrophysics and Cosmology
Ch 33) Astrophysics and Cosmology

Impact of atmospheric refraction: How deeply can we probe exo
Impact of atmospheric refraction: How deeply can we probe exo

PowerPoint Presentation - Isolated Neutron Stars, solid crust
PowerPoint Presentation - Isolated Neutron Stars, solid crust

...  Soft X-ray sources in ROSAT survey  BB-like X-ray spectra, no non thermal hard emission  Low absorption, nearby (NH ~1019-1020 cm-2)  Constant X-ray flux on time scales of years  Some are X-ray pulsars (3.45-11.37 s)  No radio emission ? ...
Homework #3, AST 1002
Homework #3, AST 1002

... Which of the following is (are) correct? (a) Energy is transported from the Sun's core to its surface primarily by a process called convection. (b) It takes about five minutes for energy from the Sun's core to reach its surface. (c) The proton cycle describes the process of energy production in the ...
Starwalk Manual En
Starwalk Manual En

... The highlighted parameter will start changing accordingly. To make any parameter elapse automatically, tap one of them and drag the Time slider. The map sky will rotate. In order to stop that, tap the Time slider again. To return to the current time zone, tap ...
the article as PDF - Project VS
the article as PDF - Project VS

Chapter 2 CELESTIAL COORDINATE SYSTEMS
Chapter 2 CELESTIAL COORDINATE SYSTEMS

Effect of the stellar spin history on the tidal evolution of close
Effect of the stellar spin history on the tidal evolution of close

PPT presentation
PPT presentation

Chapter 12: Stars and Galaxies
Chapter 12: Stars and Galaxies

... When light from a star is passed through a spectroscope, astronomers see dark absorption lines that are produced as light passes through the star’s cooler, less dense atmosphere. Each element contributes its own set of absorption lines to this absorption spectrum, such as those shown in Figure 5. Wh ...
Ardua et Astra: On the Calculation of the Dates of the Rising and
Ardua et Astra: On the Calculation of the Dates of the Rising and

... parapegma attached to Geminus’ Isagoge and those in Hofmann’s tables, she raises the possibility that the calculations are wrong, but not that they might have a significant error margin.10 In general it seems that some scholars have the not unreasonable idea that modern computational methods will pr ...
INTERSTELLAR MedLab
INTERSTELLAR MedLab

... Reflection – dust clouds that reflect (scatter) a star’s light to us Dark – high densities of dust and gas that redden or extinct the light from the stars located behind the cloud. These are also where molecules are likely to be found. During the course of this laboratory exercise, you will study th ...
Star formation rates and efficiencies in the Galactic Centre
Star formation rates and efficiencies in the Galactic Centre

Astrophysics Lab “A”
Astrophysics Lab “A”

... If the energy output (luminosity) of these stars is known, the ratio received energy flux (at the telescope) radiated energy (of the star) can be used to determine their distances (basically, geometric dilution of the radiation). Thus, hot luminous stars enable us, among other things, to determine t ...
< 1 2 3 4 5 6 7 8 9 10 ... 167 >

Dyson sphere

A Dyson sphere is a hypothetical megastructure that completely encompasses a star and hence captures most or all of its power output. It was first described by Olaf Stapledon in his science fiction novel, ""Star Maker"". The concept was later popularly adopted by Freeman Dyson. Dyson speculated that such structures would be the logical consequence of the long-term survival and escalating energy needs of a technological civilization, and proposed that searching for evidence of the existence of such structures might lead to the detection of advanced intelligent extraterrestrial life. Different types of Dyson spheres correlate with information on the Kardashev scale.Since then, other variant designs involving building an artificial structure or series of structures to encompass a star have been proposed in exploratory engineering or described in science fiction under the name ""Dyson sphere"". These later proposals have not been limited to solar-power stations. Many involve habitation or industrial elements. Most fictional depictions describe a solid shell of matter enclosing a star, which is considered the least plausible variant of the idea (see below). In May 2013, at the Starship Century Symposium in San Diego, Dyson repeated his comments that he wished the concept had not been named after him.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report