{
  "id": 250370,
  "title": "Einstein's equations (just for fun)",
  "url": "/competitions/g2net-gravitational-wave-detection/discussion/250370",
  "author_name": "",
  "post_date": "2021-07-02T11:42:48.108034700Z",
  "votes": 16,
  "comment_count": 3,
  "views": 0,
  "content": "<p>This will <strong>not</strong> improve your score at all, but may help you satisfy your intellectual curiosity.</p>\n<p><img src=\"https://upload.wikimedia.org/wikipedia/commons/4/45/EinsteinLeiden4.jpg\" alt=\"\"></p>\n<p>There is an equation called the <strong>Einstein equation</strong> that describes gravitational waves.<br>\nThe equations were first published by Einstein in 1915.<br>\nAnd it was actually detected in 2016.</p>\n<p>According to the general theory of relativity, massive objects distort the space-time around them. In other words, gravity is explained as a distortion of space-time. The theoretical consequence and framework of this theory is called Einstein equation, which is expressed as follows</p>\n<p>$$<br>\nG_{\\mu\\nu }+\\Lambda g_{\\mu\\nu }=\\kappa T_{\\mu\\nu }<br>\n$$</p>\n<p>The left side represents the distortion of space-time, and the right side the energy of matter.<br>\nThus, It is an equation that links the distortion of space-time to the energy of matter.<br>\nRoughly speaking, the equation says that if you know the position of matters, you can determine the distortion of that space-time.</p>\n<p>This equation is very difficult to solve, so if it was solved, the solution would be named after the person who solved it.<br>\nThe Schwarzschild solution is known as one of the solutions which describes a black hole.<br>\nAfter the black hole, gravitational lensing led the way, and gravitational waves were the last thing left.</p>\n<p>This means that the homework left by Einstein has been solved over 100 years.</p>\n<p>If this kaggle competition can help people to understand Einstein's greatness, to become more interested in physics and the universe, and to lead to further progress in science, I think it couldn't be more perfect!!!</p>\n<p>🪐<em>Enjoy your kaggle life</em>🪐</p>\n<p>For more deails, please check <a href=\"https://en.wikipedia.org/wiki/Einstein_field_equations\" target=\"_blank\">Wikipedia</a>.</p>",
  "messages": [
    {
      "id": "1373291",
      "postDate": "07/02/2021 11:42:48",
      "content": "<p>This will <strong>not</strong> improve your score at all, but may help you satisfy your intellectual curiosity.</p>\n<p><img src=\"https://upload.wikimedia.org/wikipedia/commons/4/45/EinsteinLeiden4.jpg\" alt=\"\"></p>\n<p>There is an equation called the <strong>Einstein equation</strong> that describes gravitational waves.<br>\nThe equations were first published by Einstein in 1915.<br>\nAnd it was actually detected in 2016.</p>\n<p>According to the general theory of relativity, massive objects distort the space-time around them. In other words, gravity is explained as a distortion of space-time. The theoretical consequence and framework of this theory is called Einstein equation, which is expressed as follows</p>\n<p>$$<br>\nG_{\\mu\\nu }+\\Lambda g_{\\mu\\nu }=\\kappa T_{\\mu\\nu }<br>\n$$</p>\n<p>The left side represents the distortion of space-time, and the right side the energy of matter.<br>\nThus, It is an equation that links the distortion of space-time to the energy of matter.<br>\nRoughly speaking, the equation says that if you know the position of matters, you can determine the distortion of that space-time.</p>\n<p>This equation is very difficult to solve, so if it was solved, the solution would be named after the person who solved it.<br>\nThe Schwarzschild solution is known as one of the solutions which describes a black hole.<br>\nAfter the black hole, gravitational lensing led the way, and gravitational waves were the last thing left.</p>\n<p>This means that the homework left by Einstein has been solved over 100 years.</p>\n<p>If this kaggle competition can help people to understand Einstein's greatness, to become more interested in physics and the universe, and to lead to further progress in science, I think it couldn't be more perfect!!!</p>\n<p>🪐<em>Enjoy your kaggle life</em>🪐</p>\n<p>For more deails, please check <a href=\"https://en.wikipedia.org/wiki/Einstein_field_equations\" target=\"_blank\">Wikipedia</a>.</p>",
      "rawMarkdown": "This will **not** improve your score at all, but may help you satisfy your intellectual curiosity.\n\n![](https://upload.wikimedia.org/wikipedia/commons/4/45/EinsteinLeiden4.jpg)\n\nThere is an equation called the **Einstein equation** that describes gravitational waves.\nThe equations were first published by Einstein in 1915.\nAnd it was actually detected in 2016.\n\nAccording to the general theory of relativity, massive objects distort the space-time around them. In other words, gravity is explained as a distortion of space-time. The theoretical consequence and framework of this theory is called Einstein equation, which is expressed as follows\n\n$$\nG_{\\mu\\nu }+\\Lambda g_{\\mu\\nu }=\\kappa T_{\\mu\\nu }\n$$\n\nThe left side represents the distortion of space-time, and the right side the energy of matter.\nThus, It is an equation that links the distortion of space-time to the energy of matter.\nRoughly speaking, the equation says that if you know the position of matters, you can determine the distortion of that space-time.\n\nThis equation is very difficult to solve, so if it was solved, the solution would be named after the person who solved it.\nThe Schwarzschild solution is known as one of the solutions which describes a black hole.\nAfter the black hole, gravitational lensing led the way, and gravitational waves were the last thing left.\n\nThis means that the homework left by Einstein has been solved over 100 years.\n\nIf this kaggle competition can help people to understand Einstein's greatness, to become more interested in physics and the universe, and to lead to further progress in science, I think it couldn't be more perfect!!!\n\n🪐*Enjoy your kaggle life*🪐\n\nFor more deails, please check [Wikipedia](https://en.wikipedia.org/wiki/Einstein_field_equations).",
      "votes": null
    },
    {
      "id": "1376666",
      "postDate": "07/05/2021 08:59:15",
      "content": "<p>From the relationship between the distortion of space-time and the mass of objects, we can have endless imagination. Space-time is like a big invisible net carrying one planet after another… In fact, the prototype of this formula can be found as early as on the earth. The net made of cloth carrying objects also collapses due to the gravity of the earth, In fact, he just macroscopized the scientific laws which are not easy to be detected by micro people</p>",
      "rawMarkdown": "From the relationship between the distortion of space-time and the mass of objects, we can have endless imagination. Space-time is like a big invisible net carrying one planet after another... In fact, the prototype of this formula can be found as early as on the earth. The net made of cloth carrying objects also collapses due to the gravity of the earth, In fact, he just macroscopized the scientific laws which are not easy to be detected by micro people",
      "votes": null
    },
    {
      "id": "1376839",
      "postDate": "07/05/2021 11:35:20",
      "content": "<p>Great☺️<br>\nThat's a very easy to understand analogy.</p>\n<p>If we think of space-time as a fabric📜 and the planets as balls🎱 on top of it, we will see this equation differently.</p>",
      "rawMarkdown": "Great☺️\nThat's a very easy to understand analogy.\n\nIf we think of space-time as a fabric📜 and the planets as balls🎱 on top of it, we will see this equation differently.",
      "votes": null
    },
    {
      "id": "1563258",
      "postDate": "10/28/2021 06:52:02",
      "content": "<p>Hey,</p>\n<p>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 <a href=\"https://forms.gle/QP9L16niPexozyhu5\" target=\"_blank\">https://forms.gle/QP9L16niPexozyhu5</a>.</p>\n<p>Thank you all,</p>\n<p>Regards,<br>\nChris</p>",
      "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": 1376666,
      "author_name": "zhangeng",
      "author_url": "",
      "post_date": "07/05/2021 08:59:15",
      "content": "<p>From the relationship between the distortion of space-time and the mass of objects, we can have endless imagination. Space-time is like a big invisible net carrying one planet after another… In fact, the prototype of this formula can be found as early as on the earth. The net made of cloth carrying objects also collapses due to the gravity of the earth, In fact, he just macroscopized the scientific laws which are not easy to be detected by micro people</p>",
      "votes": null,
      "replies": [
        {
          "id": 1376839,
          "author_name": "yhirakawa",
          "author_url": "",
          "post_date": "07/05/2021 11:35:20",
          "content": "<p>Great☺️<br>\nThat's a very easy to understand analogy.</p>\n<p>If we think of space-time as a fabric📜 and the planets as balls🎱 on top of it, we will see this equation differently.</p>",
          "votes": null,
          "replies": []
        }
      ]
    },
    {
      "id": 1563258,
      "author_name": "zerafachris",
      "author_url": "",
      "post_date": "10/28/2021 06:52:02",
      "content": "<p>Hey,</p>\n<p>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 <a href=\"https://forms.gle/QP9L16niPexozyhu5\" target=\"_blank\">https://forms.gle/QP9L16niPexozyhu5</a>.</p>\n<p>Thank you all,</p>\n<p>Regards,<br>\nChris</p>",
      "votes": null,
      "replies": []
    }
  ],
  "raw_markdown_by_id": {
    "1373291": "This will **not** improve your score at all, but may help you satisfy your intellectual curiosity.\n\n![](https://upload.wikimedia.org/wikipedia/commons/4/45/EinsteinLeiden4.jpg)\n\nThere is an equation called the **Einstein equation** that describes gravitational waves.\nThe equations were first published by Einstein in 1915.\nAnd it was actually detected in 2016.\n\nAccording to the general theory of relativity, massive objects distort the space-time around them. In other words, gravity is explained as a distortion of space-time. The theoretical consequence and framework of this theory is called Einstein equation, which is expressed as follows\n\n$$\nG_{\\mu\\nu }+\\Lambda g_{\\mu\\nu }=\\kappa T_{\\mu\\nu }\n$$\n\nThe left side represents the distortion of space-time, and the right side the energy of matter.\nThus, It is an equation that links the distortion of space-time to the energy of matter.\nRoughly speaking, the equation says that if you know the position of matters, you can determine the distortion of that space-time.\n\nThis equation is very difficult to solve, so if it was solved, the solution would be named after the person who solved it.\nThe Schwarzschild solution is known as one of the solutions which describes a black hole.\nAfter the black hole, gravitational lensing led the way, and gravitational waves were the last thing left.\n\nThis means that the homework left by Einstein has been solved over 100 years.\n\nIf this kaggle competition can help people to understand Einstein's greatness, to become more interested in physics and the universe, and to lead to further progress in science, I think it couldn't be more perfect!!!\n\n🪐*Enjoy your kaggle life*🪐\n\nFor more deails, please check [Wikipedia](https://en.wikipedia.org/wiki/Einstein_field_equations).",
    "1376666": "From the relationship between the distortion of space-time and the mass of objects, we can have endless imagination. Space-time is like a big invisible net carrying one planet after another... In fact, the prototype of this formula can be found as early as on the earth. The net made of cloth carrying objects also collapses due to the gravity of the earth, In fact, he just macroscopized the scientific laws which are not easy to be detected by micro people",
    "1376839": "Great☺️\nThat's a very easy to understand analogy.\n\nIf we think of space-time as a fabric📜 and the planets as balls🎱 on top of it, we will see this equation differently.",
    "1563258": "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"
}