Calculating and Visualizing the Magnetic Field Due

It seems that most of the second semester algebra-based physics is magic. Since you need calculus to derive many of the expressions, the students just get them magically instead.

NOT TODAY. Well, I hope not. Today I am going to use python and the Biot-Savart Law to find the magnetic field due to a wire. Here is the expression I want to show:

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Where I is the current in a wire and r is the distance from the wire. I guess I should start with the magnetic field due to a moving point charge.

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Yes, that’s sort of a crazy equation. The weird part is the cross product. Here are some notes:

  • The “times” symbol is the cross product.
  • The cross product is an operation between two vectors that returns a vector as the resultant (unlike the dot-product that returns a scalar).
  • The resultant of this vector is perpendicular to both of the products-that makes this only work in 3D.
  • The magnitude of the resultant depends on the magnitude of the products and the sine of the angle between them.

OK, that’s enough of that. Fortunately, we don’t really need to compute cross products since it’s built into VPython (Glowscript). Let me do one more thing before calculating stuff. Suppose I have a charge q moving with a velocity v over some short length of wire, L. I can write qv as:

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So, instead of dealing with qv, I can use IL. Note that L is a vector in the direction of motion for the current. Now my magnetic field looks like this:

#python #physics #programming

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Calculating and Visualizing the Magnetic Field Due
Arvel  Parker

Arvel Parker

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Visual Analytics and Advanced Data Visualization

Visual Analytics is the scientific visualization to emerge an idea to present data in such a way so that it could be easily determined by anyone.

It gives an idea to the human mind to directly interact with interactive visuals which could help in making decisions easy and fast.

Visual Analytics basically breaks the complex data in a simple way.

The human brain is fast and is built to process things faster. So Data visualization provides its way to make things easy for students, researchers, mathematicians, scientists e

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CSS Boss

CSS Boss

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How to create a calculator using javascript - Pure JS tutorials |Web Tutorials

In this video I will tell you How to create a calculator using javascript very easily.

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Arvel  Parker

Arvel Parker

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Visual Analytics Services for Data-Driven Decision Making

Visual analytics is the process of collecting, examining complex and large data sets (structured or unstructured) to get useful information to draw conclusions about the datasets and visualize the data or information in the form of interactive visual interfaces and graphical manner.

Data analytics is usually accomplished by extracting or collecting data from different data sources in the form of numbers, statistics and overall activity of any organization, with different deep learning and analytics tools, which is then processed using data visualization software and presented in the form of graphical charts, figures, and bars.

In today technology world, data are reproduced in incredible rate and amount. Visual Analytics helps the world to make the vast and complex amount of data useful and readable. Visual Analytics is the process to collect and store the data at a faster rate than analyze the data and make it helpful.

As human brain process visual content better than it processes plain text. So using advanced visual interfaces, humans may directly interact with the data analysis capabilities of today’s computers and allow them to make well-informed decisions in complex situations.

It allows you to create beautiful, interactive dashboards or reports that are immediately available on the web or a mobile device. The tool has a Data Explorer that makes it easy for the novice analyst to create forecasts, decision trees, or other fancy statistical methods.

#blogs #data visualization #data visualization tools #visual analytics #visualizing ml models

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Dynamically Add/Remove Multiple input Fields and Submit to DB with jQuery and Laravel

In this post, i will show you how to dynamically add/remove multiple input fields and submit to database with jquery in php laravel framework. As well as, i will show you how to add/remove multiple input fields and submit to database with validation in laravel.

dynamically add remove multiple input fields and submit to database with jquery and laravel app will looks like, you can see in the following picture:

add/remove multiple input fields dynamically with jquery laravel

Laravel - Add/Remove Multiple Input Fields Using jQuery, javaScript

Follow the below given easy step to create dynamically add or remove multiple input fields and submit to database with jquery in php laravel

  • Step 1: Install Laravel App
  • Step 2: Add Database Details
  • Step 3: Create Migration & Model
  • Step 4: Add Routes
  • Step 5: Create Controller by Artisan
  • Step 6: Create Blade View
  • Step 7: Run Development Server

https://www.tutsmake.com/add-remove-multiple-input-fields-in-laravel-using-jquery/

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Visual Perception

Why do we visualize data?

It helps us to comprehend _huge _amounts of data by compressing it into a simple, easy to understand visualization. It helps us to find hidden patterns or see underlying problems in the data itself which might not have been obvious without a good chart.

Our brain is specialized to perceive the physical world around us as efficiently as possible. Evidence also suggests that we all develop the same visual systems, regardless of our environment or culture. This suggests that the development of the visual system isn’t solely based on our environment but is the result of millions of years of evolution. Which would contradict the tabula rasa theory (Ware 2021 ). Sorry John Locke. Our visual system splits tasks and thus has specialized regions that are responsible for segmentation (early rapid-processing), edge orientation detection, or color and light perception. We are able to extract features and find patterns with ease.

It is interesting that on a higher level of visual perception (visual cognition), our brains are able to highlight colors and shapes to focus on certain aspects. If we search for red-colored highways on a road map, we can use our visual cognition to highlight the red roads and put the other colors in the background. (Ware 2021)

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