File:Simulation of the Cosmic Microwave Background formation.webm
Original file (WebM audio/video file, VP8/Vorbis, length 1 min 0 s, 1,280 × 720 pixels, 2.12 Mbps overall, file size: 15.14 MB)
Captions
Captions
Summary
[edit]| Description |
English: This simulation shows the formation of the Cosmic Microwave Background (CMB) at a detailed level. Brown spheres are atoms and green balls are photons. Initially the universe is very young and very dense and very hot, and the atoms are ionised and hence opaque to photons. The photons bounce between the atoms, trapped. As space expands, eventually the atoms become neutral (go darker in the simulation), after which the photons just ignore them and fly around undisturbed in all directions. It is these undisturbed photons that form the cosmic microwave background we see today.
This simulation is one of many made during creation of the Australian National University's free online astrophysics courses: It was created using the VPython library (vpython.org) |
| Date | |
| Source | YouTube: Simulation of the Cosmic Microwave Background formation – View/save archived versions on archive.org and archive.today |
| Author | Astronomy Simulations |
Licensing
[edit].svg){kind=icon}
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
|
This file, which was originally posted to YouTube, was reviewed on 8 December 2019 by the automatic software YouTubeReviewBot, which confirmed that this video was available there under the stated Creative Commons license on that date. This file should not be deleted if the license has changed in the meantime. The Creative Commons license is irrevocable.
The bot only checks for the license, human review is still required to check if the video is a derivative work, has freedom of panorama related issues and other copyright problems that might be present in the video. Visit licensing for more information. If you are a license reviewer, you can review this file by manually appending |
|
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:11, 16 November 2018 | 1 min 0 s, 1,280 × 720 (15.14 MB) | DriscollAmok (talk | contribs) | Imported media from https://www.youtube.com/watch?v=zpBL68gHi8k |
You cannot overwrite this file.
File usage on Commons
The following page uses this file: