{ "id": 251754, "title": "Gravitational Waves and Strain for Dummies", "url": "/competitions/g2net-gravitational-wave-detection/discussion/251754", "author_name": "", "post_date": "2021-07-08T16:52:23.608697200Z", "votes": 39, "comment_count": 3, "views": 0, "content": "

To understand GW to a good enough degree you need to be aware of following three concepts:

\n
    \n
  1. Wave nature of light (Light is used to measure the change in the length of arms of LIGO)
    \n\"\"
    2. \n
  2. Space-time fabric (This is the medium GW propagate in)
    \n\"\"
    3. \n
  3. Interference (Constructive/Destructive) of waves (Think of this as arithmetic of waves -2 + 2 = 0 similarly, +ve part of wave + -ve part of wave = no wave/canceled wave)
    \n\"\"
    4. \n
\n

\"\"

\n

This is the experimental setup of how arrival of waves are detected. Follow the steps 1-6.
\n\"\"

\n

How gravitational waves squeeze and stretch the space
\n\"\"

\n

Strain
\n\"\"

", "messages": [ { "id": "1381134", "postDate": "07/08/2021 16:52:23", "content": "

To understand GW to a good enough degree you need to be aware of following three concepts:

\n
    \n
  1. Wave nature of light (Light is used to measure the change in the length of arms of LIGO)
    \n\"\"
    2. \n
  2. Space-time fabric (This is the medium GW propagate in)
    \n\"\"
    3. \n
  3. Interference (Constructive/Destructive) of waves (Think of this as arithmetic of waves -2 + 2 = 0 similarly, +ve part of wave + -ve part of wave = no wave/canceled wave)
    \n\"\"
    4. \n
\n

\"\"

\n

This is the experimental setup of how arrival of waves are detected. Follow the steps 1-6.
\n\"\"

\n

How gravitational waves squeeze and stretch the space
\n\"\"

\n

Strain
\n\"\"

", "rawMarkdown": "To understand GW to a good enough degree you need to be aware of following three **concepts**:\n1. Wave nature of light (Light is used to measure the change in the length of arms of LIGO)\n![](https://media1.giphy.com/media/G7Pc0fNwuVzYk/giphy.gif)\n2. Space-time fabric (This is the medium GW propagate in)\n![](https://media3.giphy.com/media/YTWSOyixk7MwMt7xtz/giphy.gif)\n3. Interference (Constructive/Destructive) of waves (Think of this as arithmetic of waves -2 + 2 = 0 similarly, +ve part of wave + -ve part of wave = no wave/canceled wave)\n![](https://lh3.googleusercontent.com/proxy/c_WTCDsAsbdV9CJ_P9wWhdj0JYbhJ6aWsF3B_DCLclUgbG9TW33C4vVqPjROF0UwbiF6dJkNGCKD_9PSOU_xap-dtI7a9oxB3Pvckq_cpu55yKLK6X9WAmZcnlUgaOI)\n\n![](https://www.lindau-nobel.org/wp-content/uploads/2017/10/fig_fy_en_17_twoblackholes.jpg)\n\nThis is the experimental setup of how arrival of waves are detected. Follow the steps 1-6.\n![](https://www.nobelprize.org/uploads/2017/12/ligo.jpg)\n\nHow gravitational waves squeeze and stretch the space\n![](https://upload.wikimedia.org/wikipedia/commons/thumb/0/0d/Quadrupol_Wave.gif/220px-Quadrupol_Wave.gif)\n\n***Strain***\n![](https://media.springernature.com/full/springer-static/image/art%3A10.1007%2Fs10554-008-9414-1/MediaObjects/10554_2008_9414_Fig1_HTML.gif)", "votes": null }, { "id": "1381939", "postDate": "07/09/2021 11:16:17", "content": "

Great illustration for GW wave, thanks for sharing @cyberia , for this special kind of signal data, any idea on how to preprocess and augment is better?

", "rawMarkdown": "Great illustration for GW wave, thanks for sharing @cyberia , for this special kind of signal data, any idea on how to preprocess and augment is better?", "votes": null }, { "id": "1383994", "postDate": "07/11/2021 11:32:43", "content": "

Wow. This is the simplistic and the best explanation on GWaves. Thanks!

", "rawMarkdown": "Wow. This is the simplistic and the best explanation on GWaves. Thanks!", "votes": null }, { "id": "1563271", "postDate": "10/28/2021 06:52:50", "content": "

Hey,

\n

Thank you all for taking part in our competition. The participation has been overwhelmingly positive. We are currently conducting a survey to gauge the demographic and outreach achieved. Kindly spare 2min and fill in this survey https://forms.gle/QP9L16niPexozyhu5.

\n

Thank you all,

\n

Regards,
\nChris

", "rawMarkdown": "Hey,\n\nThank you all for taking part in our competition. The participation has been overwhelmingly positive. We are currently conducting a survey to gauge the demographic and outreach achieved. Kindly spare 2min and fill in this survey https://forms.gle/QP9L16niPexozyhu5.\n\nThank you all,\n\nRegards,\nChris", "votes": null } ], "comments": [ { "id": 1381939, "author_name": "superchenhao", "author_url": "", "post_date": "07/09/2021 11:16:17", "content": "

Great illustration for GW wave, thanks for sharing @cyberia , for this special kind of signal data, any idea on how to preprocess and augment is better?

", "votes": null, "replies": [] }, { "id": 1383994, "author_name": "shaz13", "author_url": "", "post_date": "07/11/2021 11:32:43", "content": "

Wow. This is the simplistic and the best explanation on GWaves. Thanks!

", "votes": null, "replies": [] }, { "id": 1563271, "author_name": "zerafachris", "author_url": "", "post_date": "10/28/2021 06:52:50", "content": "

Hey,

\n

Thank you all for taking part in our competition. The participation has been overwhelmingly positive. We are currently conducting a survey to gauge the demographic and outreach achieved. Kindly spare 2min and fill in this survey https://forms.gle/QP9L16niPexozyhu5.

\n

Thank you all,

\n

Regards,
\nChris

", "votes": null, "replies": [] } ], "raw_markdown_by_id": { "1381134": "To understand GW to a good enough degree you need to be aware of following three **concepts**:\n1. Wave nature of light (Light is used to measure the change in the length of arms of LIGO)\n![](https://media1.giphy.com/media/G7Pc0fNwuVzYk/giphy.gif)\n2. Space-time fabric (This is the medium GW propagate in)\n![](https://media3.giphy.com/media/YTWSOyixk7MwMt7xtz/giphy.gif)\n3. Interference (Constructive/Destructive) of waves (Think of this as arithmetic of waves -2 + 2 = 0 similarly, +ve part of wave + -ve part of wave = no wave/canceled wave)\n![](https://lh3.googleusercontent.com/proxy/c_WTCDsAsbdV9CJ_P9wWhdj0JYbhJ6aWsF3B_DCLclUgbG9TW33C4vVqPjROF0UwbiF6dJkNGCKD_9PSOU_xap-dtI7a9oxB3Pvckq_cpu55yKLK6X9WAmZcnlUgaOI)\n\n![](https://www.lindau-nobel.org/wp-content/uploads/2017/10/fig_fy_en_17_twoblackholes.jpg)\n\nThis is the experimental setup of how arrival of waves are detected. Follow the steps 1-6.\n![](https://www.nobelprize.org/uploads/2017/12/ligo.jpg)\n\nHow gravitational waves squeeze and stretch the space\n![](https://upload.wikimedia.org/wikipedia/commons/thumb/0/0d/Quadrupol_Wave.gif/220px-Quadrupol_Wave.gif)\n\n***Strain***\n![](https://media.springernature.com/full/springer-static/image/art%3A10.1007%2Fs10554-008-9414-1/MediaObjects/10554_2008_9414_Fig1_HTML.gif)", "1381939": "Great illustration for GW wave, thanks for sharing @cyberia , for this special kind of signal data, any idea on how to preprocess and augment is better?", "1383994": "Wow. This is the simplistic and the best explanation on GWaves. Thanks!", "1563271": "Hey,\n\nThank you all for taking part in our competition. The participation has been overwhelmingly positive. We are currently conducting a survey to gauge the demographic and outreach achieved. Kindly spare 2min and fill in this survey https://forms.gle/QP9L16niPexozyhu5.\n\nThank you all,\n\nRegards,\nChris" }, "source": "meta" }