a matser24: astrophysics
Hiển thị các bài đăng có nhãn astrophysics. Hiển thị tất cả bài đăng
Hiển thị các bài đăng có nhãn astrophysics. Hiển thị tất cả bài đăng

Thứ Hai, 2 tháng 9, 2019

Simulation of expanding universe - YouTube Astronomy Simulations

Simulation of expanding universe - YouTube Astronomy Simulations
This simulation shows galaxies (shown as spheres) being carried apart by the expansion of space. In this version of the simulation, the gravity of the individual galaxies has been set to zero, so they do not attract each other. This simulation is one of many made during creation of the Australian National University's free online astrophysics courses: https://www.edx.org/xseries/astrophysics...

Simulation of gravitational lensing image plane - YouTube Astronomy Simulations

Simulation of gravitational lensing image plane - YouTube Astronomy Simulations
This simulation shows light falling on the image plane (an imaginary plane passing through the Earth) due to light from a distant star. A small mass moves between Earth and distant star and causes the lensing pattern seen to move across the screen. This simulation is one of many made during creation of the Australian National University's free online astrophysics...

Simulation of rotating galaxy with flat rotation curve - YouTube Astronomy Simulations

Simulation of rotating galaxy with flat rotation curve - YouTube Astronomy Simulations
This simulation shows a rotating galaxy. Due to the presence of dark matter, the rotation speed does not decrease as you'd expect when you go further out. Instead, the rotation velocity remains constant. A contrasting video (also on this channel) shows the rotation if all the mass was at the centre. This simulation is one of many made during creation of the...

Simulation of a comet passing a star - YouTube Astronomy Simulations

Simulation of a comet passing a star - YouTube Astronomy Simulations
This simulation shows a comet passing close to the Sun. The comet nucleus (red) emits dust particles (blue) which make up the tail. This simulation is one of many made during creation of the Australian National University's free online astrophysics courses: https://www.edx.org/xseries/astrophysicsSimulation of a comet passing a star - YouTube3 Likes3 Dislikes250...

Simulation of gravitational microlensing image plane with planet - YouTube Astronomy Simulations

Simulation of gravitational microlensing image plane with planet - YouTube Astronomy Simulations
This simulation shows where light falls in the image plane (an imaginary plane passing through the Earth) due to light from a distant star being lensed by a moving closer star. This closer star has a planet in orbit around it. This simulation is one of many made during creation of the Australian National University's free online astrophysics courses: https://www.edx.org/xseries/astrophysicsSimulation...

Simulation of Transiting Exoplanet - YouTube Astronomy Simulations

Simulation of Transiting Exoplanet - YouTube Astronomy Simulations
This simulation shows an exoplanet orbiting a star, and transiting it once per orbit. This simulation is one of many made during creation of the Australian National University's free online astrophysics courses: https://www.edx.org/xseries/astrophysics It was created using the VPython library (vpython.org)Simulation of Transiting Exoplanet - YouTube1 Likes1...

Simulation of a Pulsar - YouTube Astronomy Simulations

Simulation of a Pulsar - YouTube Astronomy Simulations
This simulation shows a pulsar rotating, firing out a beam of radiation that points towards the observer once per rotation, causing a pulse. This simulation is one of many made during creation of the Australian National University's free online astrophysics courses: https://www.edx.org/xseries/astrophysics It was created using the VPython library (vpython.org)Simulation...

Simulation of a water molecule exposed to an oscillating electric field - YouTube Astronomy Simulations

Simulation of a water molecule exposed to an oscillating electric field - YouTube Astronomy Simulations
This simulation shows how a water molecule (left) responds to an oscillating electric field (blue arrow on the right). Due to water's polar nature, the electric field causes wild motions in the water molecule. This explains why water vapor absorbs so strongly at infra-red wavelengths, and is the dominant contribution to the greenhouse effect. This simulation...