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https://github.com/ym496/phys.libretexts-scraper

A scraper for the website phys.libretexts.
https://github.com/ym496/phys.libretexts-scraper

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Last synced: 12 days ago
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A scraper for the website phys.libretexts.

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README 

        
# phys.libretexts-Scraper

A scraper for the website [phys.libretexts](https://phys.libretexts.org/).

# Contributing

This project is under construction. If you want to contribute to this project create a fork and submit a PR. 
 


Also feel free to create a new [issue](https://github.com/WildCyclotron/phys.libretexts-scraper/issues) if you found a bug or have a suggestion. 

# Installing

* Make sure to get Python 3.7 or higher.

* Set up venv

```

python -m venv venv

```

* Clone this repository

```

$ git clone https://github.com/WildCyclotron/phys.libretexts-scraper.git

```

* Install dependencies

```

pip install -U -r requirements.txt

```

# Usage 

### Example  

```py

import physlibretexts



physlibretexts.search('momentum',1)

```

### Output

```json

{

  "results": [

    {

      "title": "Momentum",

      "link": "https://phys.libretexts.org/Bookshelves/Classical_Mechanics/Supplemental_Modules_(Classical_Mechanics)/Conservation_of_Momentum/Momentum",

      "content": "If the sun is directly overhead, the motion of the ball's shadow on the ground seems perfectly natural: there are no horizontal forces, so it either sits still or moves at constant velocity. (Zero for..."

    },

    {

      "title": "10.1: Momentum",

      "link": "https://phys.libretexts.org/Bookshelves/University_Physics/Book%3A_Introductory_Physics_-_Building_Models_to_Describe_Our_World_(Martin_Neary_Rinaldo_and_Woodman)/10%3A_Linear_Momentum_and_the_Center_of_Mass/10.01%3A_Momentum",

      "content": "We thus have:\nd\ndt\n(\n→\np\n1+\n→\np\n2)=∑\n→\nF\next\nFurthermore, if we introduce the “total momentum of the system”,\n→\nP\n=\n→\np\n1+\n→\np\n2, as..."

    },

    {

      "title": "3.3: Moment of Momentum",

      "link": "https://phys.libretexts.org/Bookshelves/Classical_Mechanics/Classical_Mechanics_(Tatum)/03%3A_Systems_of_Particles/3.03%3A_Moment_of_Momentum",

      "content": "Moment of momentum plays a role in rotational motion analogous to the role played by linear momentum in linear motion, and is also called angular momentum. Several choices for expressing angular momen..."

    },

    {

      "title": "3.2: Momentum",

      "link": "https://phys.libretexts.org/Bookshelves/University_Physics/Book%3A_University_Physics_I_-_Classical_Mechanics_(Gea-Banacloche)/03%3A_Momentum_and_Inertia/3.02%3A_Momentum",

      "content": "For instance, if you are driving in a car towing a trailer behind you, the trailer has only a large amount of inertia, but no momentum, relative to you, because its velocity relative to you is zero; h..."

    },

    {

      "title": "9.2: Linear Momentum",

      "link": "https://phys.libretexts.org/Bookshelves/University_Physics/Book%3A_University_Physics_(OpenStax)/Book%3A_University_Physics_I_-_Mechanics_Sound_Oscillations_and_Waves_(OpenStax)/09%3A_Linear_Momentum_and_Collisions/9.02%3A_Linear_Momentum",

      "content": "Momentum is a concept that describes how the motion of an object depends not only on its mass, but also its velocity. Momentum is a vector quantity that depends equally on an object's mass and velocit..."

    },

    {

      "title": "14.6: Conservation of Four-Momentum",

      "link": "https://phys.libretexts.org/Bookshelves/University_Physics/Radically_Modern_Introductory_Physics_Text_II_(Raymond)/14%3A_Forces_in_Relativity/14.06%3A_Conservation_of_Four-Momentum",

      "content": "In other words, if we have a number of particles isolated from the rest of the universe, each with momentum pi\nand energy Ei\n, then particles may be cr..."

    },

    {

      "title": "11.3: Angular Momentum",

      "link": "https://phys.libretexts.org/Bookshelves/University_Physics/Book%3A_University_Physics_(OpenStax)/Book%3A_University_Physics_I_-_Mechanics_Sound_Oscillations_and_Waves_(OpenStax)/11%3A__Angular_Momentum/11.03%3A_Angular_Momentum",

      "content": "The angular momentum of a single particle about a designated origin is the vector product of the position vector in the given coordinate system and the particle’s linear momentum. The net torque on a ..."

    },

    {

      "title": "Angular Momentum",

      "link": "https://phys.libretexts.org/Courses/Joliet_Junior_College/Physics_201_-_Fall_2019/Book%3A_Physics_(Boundless)/10%3A_Rotational_Kinematics%2C_Angular_Momentum%2C_and_Energy/10.08%3A__Angular_Momentum/Angular_Momentum",

      "content": "The angular momentum of a single particle about a designated origin is the vector product of the position vector in the given coordinate system and the particle’s linear momentum. The net torque on a ..."

    },

    {

      "title": "12.3: Angular Momentum",

      "link": "https://phys.libretexts.org/Bookshelves/University_Physics/Book%3A_Introductory_Physics_-_Building_Models_to_Describe_Our_World_(Martin_Neary_Rinaldo_and_Woodman)/12%3A_Rotational_Energy_and_Momentum/12.03%3A_Angular_Momentum",

      "content": "In this section, we show that we can define a quantity called “angular momentum” as the rotational equivalent of the linear momentum."

    },

    {

      "title": "1.5: Four-Momentum",

      "link": "https://phys.libretexts.org/Courses/Skidmore_College/Introduction_to_General_Relativity/01%3A_Special_Relativity/1.05%3A_Four-Momentum",

      "content": "In Newtonian mechanics, position in space can be indicated with a three-dimensional vector. In Special Relativity, however, events are indicated using four coordinates: x=(t,x,y,z)."

    },

    {

      "title": "7.2: Generalized Momentum",

      "link": "https://phys.libretexts.org/Bookshelves/Classical_Mechanics/Variational_Principles_in_Classical_Mechanics_(Cline)/07%3A_Symmetries_Invariance_and_the_Hamiltonian/7.02%3A_Generalized_Momentum",

      "content": "Introduce generalized momentum."

    }

  ]

}

```