Category: Learning

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Learning Learning

Unearthing Gold: A Deep Dive into Placer and Hard Rock Mining

Introduction
Gold doesn’t magically appear in jewelry stores — it’s pulled from the Earth through intense labor and complex processes. At the root of gold’s journey lies the mining process. There are two main types: placer mining and hard rock mining. Each method has distinct techniques, benefits, and environmental impacts.

1. What is Placer Mining?
Placer mining focuses on retrieving gold from loose sediment or alluvial deposits — typically in riverbeds, streams, or sandbanks. This form of mining is one of the oldest and simplest methods used by early prospectors during gold rushes.

Techniques used:

  • Panning – a manual technique using water and a shallow pan to separate gold from sediment.
  • Sluicing – water is directed through a sluice box to separate heavier gold particles.
  • Dredging – large-scale underwater excavation, often using machinery to suck up gravel and sand.

Pros:

  • Low cost and simple tools.
  • Effective in gold-rich sediment areas.

Cons:

  • Limited to shallow, surface-level deposits.
  • May disturb aquatic habitats if not regulated.

2. What is Hard Rock Mining?
Unlike placer mining, hard rock mining involves extracting gold directly from solid rock, usually deep underground. This method requires significant infrastructure, investment, and safety precautions.

Steps involved:

  • Exploration and drilling to locate ore bodies.
  • Blasting and excavation to break rock formations.
  • Crushing and milling to extract and concentrate gold from the ore.

Pros:

  • Access to richer, long-term gold reserves.
  • Can extract larger quantities of gold.

Cons:

  • Expensive and energy-intensive.
  • Environmental risks include habitat destruction and tailings contamination.

3. Comparing the Two Methods
While placer mining is more accessible and eco-friendly when done on a small scale, hard rock mining dominates the global gold supply due to its higher yield. Both methods have a place in modern mining, but the choice often depends on the gold deposit’s location and depth.

Conclusion
Understanding the foundational techniques of gold mining helps us appreciate the effort involved long before gold reaches our hands as jewelry or investment.

#GoldRefining #DoreBars #Bullion #PreciousMetals #GoldPurification #GoldProcessing #GoldIndustry #RefiningGold #MillerProcess #WohlwillProcess

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Learning Personal Development Social

What I Learned After Taking a Break from Instagram for 30 Days

Break!

I didn’t plan it. One day I just didn’t feel like opening Instagram—and then that day turned into a week… and eventually, a month. What started as a random pause became one of the most eye-opening little experiments I’ve done on myself.

Here’s what changed in just 30 days off the ‘gram:

🧠 1. My Mind Felt… Quieter

No constant scroll. No subconscious comparisons. No noise. I didn’t realize how much mental space those quick checks were taking up until they were gone.

⏱ 2. I Got Time Back

Those “just 5 minutes” moments add up. I started filling that time with things I’d forgotten I loved—like reading, going on walks without my phone, or even just sitting still (wild, right?).

🧍‍♂️ 3. I Felt More Present

Instead of snapping photos for Stories, I lived in the moment. A sunset was just a sunset—not content. And honestly? It felt more beautiful that way.

💭 4. My Self-Worth Wasn’t Tied to Likes

I stopped measuring good days by how much engagement I got. That’s a shift I didn’t know I needed until I made it.

🤳 Will I Go Back?

Yes, but differently. With limits. With purpose. Because now I know I don’t need it—I just like using it when I want to.

So, should you try it too?
If Instagram (or any app) feels more like a habit than a joy—give yourself a break. Not forever. Just long enough to remember what life feels like without it.

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Blog Learning

The Ultimate Guide to Effective Meetings

In today’s fast-paced work environment, meetings are essential but can often feel unproductive. However, by applying a few key principles, you can transform your meetings into powerful tools for collaboration and decision-making.

In this guide, I’ll share the most effective strategies for running meetings that drive results, highlighting key lessons we can learn from Chris Donnelly’s Ultimate Meeting Cheat Sheet, which you can explore below.

1. Bezos’ 3 Golden Rules for Meetings

Jeff Bezos’ meeting strategies provide valuable lessons for keeping meetings small, effective, and focused. These rules can dramatically improve how your team collaborates:

  • The Two-Pizza Rule: Keep your meeting size small enough that two pizzas could feed everyone. This ensures discussions stay focused.
  • Ditch the PowerPoint: Instead of using slides, embrace detailed narrative memos. Written thoughts encourage deeper understanding and meaningful conversation.
  • Embrace Silence: Begin with a 30-minute silent reading session of the memo, allowing participants to fully absorb information before discussion.

2. 6 Best Practices to Elevate Your Meetings

To ensure your meetings are as productive as possible, consider adopting these best practices:

  1. Define a Clear Purpose and Agenda: Always know the goal of the meeting and share the agenda with attendees ahead of time.
  2. Encourage Active Participation: Create an environment where everyone feels comfortable contributing.
  3. Empower a Skilled Meeting Leader: A good leader keeps the discussion on track and ensures objectives are met.
  4. Conclude with Action Items: Summarize the key takeaways and assign clear next steps.
  5. Explore Alternatives: Not all collaboration needs to happen in meetings—consider alternatives like collaborative documents or asynchronous discussions.
  6. Seek Feedback and Improve: Regularly assess your meetings and seek ways to enhance them over time.

3. Proven Tips to Reduce the Number of Meetings

Cutting down on unnecessary meetings allows for more focused, uninterrupted work time. Here are three proven ways to reduce your meeting load:

  • No Meeting Days: Establish specific days where no meetings are allowed, giving your team time to focus.
  • Ruthlessly Audit Your Calendar: If a meeting lacks a clear purpose, cancel it. Time is better spent on high-impact tasks.
  • Leverage Asynchronous Tools: Use tools like email, shared documents, or video recordings to collaborate without needing to schedule a meeting.

4. Meeting Hacks from Industry Leaders

Some of the most successful business leaders have unique meeting strategies that you can easily incorporate:

  • Steve Jobs’ Walking Meetings: Break formalities and spark creativity by conducting meetings while walking.
  • Richard Branson’s Stand-up Rule: Short, energetic meetings happen when everyone is standing.
  • Warren Buffet’s 5-Minute Rule: If you can’t cover an agenda topic in 5 minutes, schedule another meeting.
  • Elon Musk’s 80/20 Rule: Only invite participants who will contribute 80% of the value in the meeting.

5. Leverage Tech Tools to Improve Meetings

You can streamline your meetings and improve efficiency by integrating technology. Here are a few tools that Chris Donnelly recommends:

  • Otter.ai: Real-time transcription for capturing conversations while staying engaged.
  • Loom: Record your screen, voice, and face to share video updates for asynchronous collaboration.
  • Tactiq: Generate meeting agendas automatically and export them to various tools like Notion or ClickUp.
  • Canva GPT: Easily design visuals to support your meetings, including presentations and diagrams.

Chris Donnelly’s Meeting Cheat Sheet

Below is Chris Donnelly’s Ultimate Meeting Cheat Sheet, which highlights key strategies and tools for running effective meetings. Download the full high-resolution version from his newsletter here.

Chris Donnelly – How to Have Effective Team Meetings Cheat Sheet Guide

Happy Learning & Thanks for visiting!

Categories
Blog Learning Learning

Preparing for a frontend or full-stack position interview involves evaluating both technical skills and cultural fit.

Lets dive in & Get Started!

Here’s a structured approach for conducting the interview:

Preparation Steps

  1. Review the Candidate’s Resume:
    • Note their technical skills, past projects, and experience.
    • Identify areas where you need more information or clarification.
  2. Set Up the Interview Environment:
    • Ensure you have a quiet, distraction-free environment.
    • Prepare any necessary tools or platforms if you plan to include a coding test.
  3. Prepare Your Questions:
    • Categorize your questions into opening, technical, and closing segments.

Interview Structure

1. Introduction:

  • Start with a brief introduction of yourself and the company.
  • Explain the interview format.

2. Opening Questions:

  • Goal: Break the ice and get an overview of the candidate’s background and interests.
  • Tell me about yourself and your background in software development.
  • Why are you interested in this position and our company?
  • What do you enjoy most about frontend/full-stack development?

3. Technical Questions:

Frontend Questions:

  • HTML/CSS:
    • Can you explain the box model and how you use it?
    • How do you ensure your web applications are responsive?
  • JavaScript:
    • Can you explain how closures work in JavaScript?
    • How do you handle asynchronous programming in JavaScript?
  • Frameworks/Libraries:
    • What is your experience with frameworks like React/Vue/Angular?
    • Can you describe the lifecycle of a React component?
  • Performance:
    • How do you optimize the performance of a web application?

Full-Stack Questions:

  • Backend Knowledge:
    • What backend technologies have you worked with?
    • Can you explain RESTful APIs and how you’ve used them in your projects?
  • Database:
    • What types of databases have you worked with (SQL/NoSQL)?
    • How do you handle database migrations?
  • DevOps:
    • What is your experience with CI/CD pipelines?
    • How do you manage deployment and scaling of applications?
  • Project Experience:
    • Describe a full-stack project you’ve worked on. What challenges did you face, and how did you overcome them?
  • Coding Exercise:
    • Provide a short coding task relevant to the role. For example, ask them to build a small feature or debug a piece of code.

4. Behavioral Questions:

  • Describe a time when you had to work closely with a difficult team member. How did you handle it?
  • How do you prioritize tasks when working on multiple projects?
  • Can you give an example of a project where you had to learn a new technology quickly?

5. Closing Questions:

  • Do you have any questions for us?
  • Is there anything we haven’t covered that you’d like to discuss?
  • What are your career goals, and how does this position align with them?

Post-Interview

  1. Evaluate the Candidate:
    • Review their technical skills, problem-solving abilities, and cultural fit.
    • Compare notes with other interviewers if applicable.
  2. Follow Up:
    • Send a thank-you email, informing them of the next steps.

By following this structure, you’ll be able to assess the candidate comprehensively, ensuring you make an informed decision.

Hope this guide help you or give hint idea on how to take start taking interviews!

Happy Learning!

Categories
Blog Learning

What things can we do with Cricut Maker machine?

Hello, Let’s dive into this question for overview results in quick way!

Car decals
Source: https://www.thecountrychiccottage.net/sell-with-cricut/

Apparel
Source: https://www.thecountrychiccottage.net/sell-with-cricut/

Labels
Source: https://daysinspired.com/what-can-the-cricut-do/

Leather

Source: https://en.wikipedia.org/wiki/Leather

Mugs
Source: https://sustainmycrafthabit.com/cricut-projects-for-beginners/

Signs
Source: https://cricut.com/blog/gb/10-things-you-can-make-to-sell-with-cricut/

Sticker
Source: https://en.wikipedia.org/wiki/Sticker

Felt flowers
Source : https://en.wikipedia.org/wiki/Felt

Greeting cards
Source: https://sustainmycrafthabit.com/cricut-projects-for-beginners/

Paper flowers
Source: https://domesticheights.com/9-most-profitable-cricut-projects-to-sell/

Party
Source: https://en.wikipedia.org/wiki/Party

Reusable stencils
Source: https://cricut.com/blog/gb/10-things-you-didnt-know-you-could-do-with-cricut/

Wine glasses
Source: https://www.creativefabrica.com/the-artistry/cricut-design-space/25-cricut-explore-air-2-project-ideas/

Christmas ornaments
Source: https://www.anikasdiylife.com/cricut-wood-project-ideas/

Interior design
Source: https://en.wikipedia.org/wiki/Interior_design

Puzzle
Source: https://en.wikipedia.org/wiki/Puzzle

Jewelry
Source: https://www.fairtrade.org.uk/media-centre/blog/7-ethical-and-sustainable-jewellery-brands/

Bookmarks
Source : https://en.wikipedia.org/wiki/Bookmark

Coasters
Source: https://www.thecountrychiccottage.net/sell-with-cricut/

Cricut designs
Source: https://heyletsmakestuff.com/cricut-projects-for-beginners/

Custom gifts
Source: https://www.creativefabrica.com/the-artistry/cricut-design-space/25-cricut-explore-air-2-project-ideas/

Custom Letterboards
Source: https://www.doodlecraftblog.com/2020/09/100-cricut-projects-to-sell-for-money.html

Drinkware
Source: https://www.thecountrychiccottage.net/sell-with-cricut/

Engraved Bracelet
Source: https://cricut.com/en/cricut-maker

Hope you enjoyed learning what we can do from cricut machine!

Thanks for visiting.

**Images are subject to respective site owner’s copyrights we don’t claim its rights any own or we claim here, this is more to knowledgeable post/article to understand what as students we can achieve or learn.

Categories
Blog Learning

Facing vercel error: Cannot remove (ABC) domain until existing redirects to (ABC) domain are removed.

Hello,

If you are facing the same error, simple steps to fix it, is to just follow the below link topic from Vercel:

Remove domain

Hope this helps to resolve your issue!

Happy learnings.

Categories
Blog Javascript Learning

Solution: TypeError: Failed to construct ‘URL’: Invalid URL

Hello,

If you are facing error :


Unhandled Runtime Error
TypeError: Failed to construct 'URL': Invalid URL
Failed to construct ‘URL’ : Invalid URL in your nextjs app

And you already have following loader ‘imgix’ settings in your next.config.js file

images: {
    // loader and path setting for android build to load nextjsimage and also on web on certain scenarios!
    loader: 'imgix',
    path: '/', // Remove the path prefix for production images
    domains: [
      'xxx.com',
      '*.xxx.com',
      'aaa.xxx.com',
      'via.placeholder.com',
    ],
}

To fix this the solution provided here worked out well!

Code snippet solution: source page stackoverflow

const loaderProp =({ src }) => {
    return src;
}

<Image
      src={currentImage.imageurl}
      alt={currentImage.imageurl} 
      layout="fill"
      className={styles.imageSize} 
      loader={loaderProp}
/>

we just need to add loader prop to the Image tag of next.js component and passdown the callback function which resolves the error above, voila!

Hope this also help you if you are facing this solution in your next.js application.

happy learning!

Categories
Learning Tech

Navigating ReactJS Interview Questions: Insights into the Latest Trends and Techniques

In the ever-evolving landscape of frontend development, ReactJS stands as a cornerstone technology, continually setting new standards for building dynamic and scalable web applications. As ReactJS continues to evolve with each new release, staying up-to-date with the latest features, best practices, and interview questions is essential for React developers aiming to excel in their careers. Let’s delve into some of the latest ReactJS interview questions, highlighting the cutting-edge trends and techniques shaping the world of React development.

  1. What are the key features introduced in the latest version of ReactJS? ReactJS has been advancing rapidly, introducing several groundbreaking features in recent releases. Some of the key features introduced in the latest version include:
    • Concurrent Mode: Concurrent Mode is a new experimental feature that aims to improve the responsiveness and performance of React applications by allowing React to work on multiple tasks simultaneously.
    • Suspense: Suspense is another experimental feature that simplifies data fetching and code splitting in React applications. It enables components to suspend rendering while waiting for data to load, providing a smoother user experience.
    • React Server Components: Server Components are a new paradigm introduced by React that allows components to be rendered on the server and hydrated on the client, improving performance and SEO for server-rendered React applications.
  2. How does Concurrent Mode enhance the performance of React applications? Concurrent Mode in ReactJS enables the rendering of components to be interrupted and resumed, allowing React to prioritize updates based on their importance. This concurrency model improves the responsiveness of applications, especially in scenarios where there are long-running tasks such as data fetching or rendering complex UI components. By breaking down rendering work into smaller units and scheduling them more efficiently, Concurrent Mode ensures that the user interface remains responsive and fluid, even under heavy load.
  3. Explain the concept of React Hooks and their significance in modern React development. React Hooks revolutionized the way developers write React components by providing a more intuitive and functional approach to state management and side effects. Hooks such as useState(), useEffect(), useContext(), and useRef() allow developers to encapsulate component logic into reusable functions, leading to cleaner and more composable code. The adoption of Hooks has streamlined component development, reduced the need for class components, and made it easier to share logic between different components. In modern React development, Hooks are considered indispensable tools for building scalable and maintainable applications.
  4. What are the advantages of using React Server Components? React Server Components offer several advantages for building server-rendered React applications:
    • Improved Performance: Server Components allow complex UI components to be rendered on the server, reducing the amount of JavaScript sent to the client and improving time-to-interactive metrics.
    • Better SEO: By rendering components on the server, React Server Components enable search engines to crawl and index content more effectively, resulting in better search engine rankings for server-rendered React applications.
    • Code Sharing: Server Components enable code sharing between the server and the client, reducing duplication and ensuring consistency between server-rendered and client-rendered components.
  5. How does React handle state management in large-scale applications? Managing state in large-scale React applications can be challenging, especially as the complexity of the application grows. To address this challenge, developers often employ state management libraries such as Redux, MobX, or Recoil. These libraries provide centralized stores for managing application state, enabling predictable state updates, efficient data access, and improved debugging capabilities. Additionally, React’s Context API can be used for sharing state between components without the need for prop drilling, further simplifying state management in complex applications.
  6. What are the best practices for optimizing performance in React applications? Optimizing performance in React applications requires careful consideration of several factors, including component rendering, data fetching, and bundle size. Some best practices for optimizing React application performance include:
    • Memoization: Memoizing expensive calculations and rendering results can improve performance by preventing unnecessary re-renders.
    • Code Splitting: Breaking down the application into smaller chunks and loading them asynchronously can reduce initial load times and improve perceived performance.
    • Server-Side Rendering (SSR): Implementing server-side rendering can improve performance and SEO by pre-rendering content on the server and sending HTML to the client.
    • Performance Monitoring: Regularly monitoring application performance using tools like React DevTools or Lighthouse can help identify performance bottlenecks and optimize critical areas of the application.

In conclusion, staying abreast of the latest trends and techniques in ReactJS development is essential for React developers aiming to excel in their careers. By mastering the latest ReactJS interview questions and understanding the underlying principles behind them, developers can demonstrate their proficiency in building modern, high-performance web applications with ReactJS. As ReactJS continues to evolve, embracing innovation and continuously learning new concepts will be key to staying ahead in the dynamic world of frontend development.

Categories
Learning Learning Tech

Mastering ReactJS Interview Questions: A Comprehensive Guide

In today’s fast-paced tech industry, ReactJS has emerged as a dominant force in frontend development. As businesses increasingly rely on ReactJS to build dynamic and interactive user interfaces, the demand for skilled ReactJS developers continues to rise. Whether you’re a seasoned React developer or just starting your journey, preparing for ReactJS interviews is crucial for landing your dream job. To help you ace your next interview, let’s delve into some of the most commonly asked ReactJS interview questions along with detailed explanations and best practices.

  1. What is ReactJS, and what are its key features? ReactJS, developed by Facebook, is an open-source JavaScript library for building user interfaces, particularly for single-page applications. Its key features include:
    • Virtual DOM: React creates a lightweight virtual representation of the actual DOM, enabling efficient updates.
    • Component-based architecture: React applications are composed of reusable and composable components, simplifying development and maintenance.
    • JSX (JavaScript XML): JSX allows embedding HTML-like syntax within JavaScript, facilitating the creation of component templates.
    • Unidirectional data flow: React follows a unidirectional data flow, where data flows in a single direction from parent to child components, ensuring predictable state management.
  2. What are the differences between ReactJS class components and functional components? React supports two types of components: class components and functional components.
    • Class components: These are ES6 classes that extend React.Component and have a state. They use the render method to return React elements.
    • Functional components: These are simple JavaScript functions that accept props as arguments and return React elements. With the introduction of React hooks, functional components can also manage state and lifecycle methods, blurring the line between class and functional components.
  3. Explain the concept of state and props in ReactJS.
    • State: State represents the data that a component manages internally. It is mutable and can be updated using the setState() method. State changes trigger re-rendering of the component.
    • Props: Props (short for properties) are immutable data passed from parent to child components. They allow parent components to communicate with their children by passing data as attributes. Props are read-only and cannot be modified within the child component.
  4. What are React hooks, and how do they work?
    React hooks are functions that enable functional components to use state and lifecycle features without writing a class. Some commonly used React hooks include useState(), useEffect(), and useContext(). Hooks allow developers to encapsulate logic and reuse it across multiple components, promoting code reusability and cleaner component structure.
  5. Describe the useEffect() hook and its purpose.
    useEffect() is a React hook used for handling side effects in functional components. Side effects include data fetching, subscriptions, or manually changing the DOM. useEffect() takes two arguments: a callback function containing the side effect logic and an optional array of dependencies. The hook executes the callback after every render unless specified otherwise, thus mimicking the behavior of lifecycle methods like componentDidMount() and componentDidUpdate().
  6. How does React handle forms?
    React provides controlled components to manage form state. In controlled components, form elements like input, textarea, and select are controlled by React state. Changes to the form elements are handled by updating the state, and the input values are controlled by the component’s state. This approach enables React to maintain the single source of truth for form data, making form handling more predictable and manageable.
  7. What are Higher-Order Components (HOCs) in React?
    Higher-Order Components (HOCs) are functions that accept a component as input and return a new enhanced component. HOCs enable code reuse, cross-cutting concerns, and behavior composition in React applications. They are commonly used for tasks such as authentication, logging, and conditional rendering. However, with the advent of React hooks, many use cases of HOCs can be achieved using custom hooks or function components.
  8. How does React Router work, and why is it used?
    React Router is a popular routing library for React applications, allowing developers to create dynamic, single-page applications with multiple views. It provides declarative routing using components like BrowserRouter, Route, Switch, and Link. React Router enables navigation between different components/pages without reloading the entire application, resulting in a smoother user experience similar to traditional multi-page applications.

In conclusion, mastering ReactJS interview questions requires a solid understanding of React’s core concepts, features, and best practices. By familiarizing yourself with these commonly asked questions and their explanations, you’ll be well-prepared to tackle ReactJS interviews with confidence and demonstrate your expertise in building modern web applications with ReactJS.

Happy coding!

Categories
Learning Tech

Placeholder input text color not changing HTML, browser chrome, how to fix?

Hello,

Welcome to the post, if you are facing similar issue on your webpage or simple app where you are trying to change the HTML input element placeholder text color according to your design or theme and changes are not applying you followed very basic documentation from MDW web docs placeholder

What is causing this issue is simple, I was facing similar issue with search field and I am using Chrome browser mainly as my default browser, so I haven’t check it was behaving right or not, so I was looking for the answers.

I have tried this solution from stakeoverflow added simple snippet from here but it still not showing reflection of change. so I though, I am writing my CSS code using SCSS, maybe I need to add in some other way or format syntax-ly, so stumbled upon on another stakeoverflow page, added the mixin in my scss code, hope to see the reflection of color change to placeholder text of input field, sorry this time it didn’t worked too,

I was wondering how to get the fix, so in my browser inspect window, i saw one selector [type=search] and some styles applying via _reboot.scss file, I tried to open that file from my application it was there, because I am using bootstrap, so its coming through that from node_modules dynamically maybe.

So in my main.scss, file where I was earlier adding css code for placeholder text “Search Author”) color to white, but it was still in dark grey color not taking effects

SCSS code

after I thought and tried to add the placeholder wrapping [type=search] selector it worked like a charm!

Finally worked, placeholder text color change to search type input field in HTML!!!

I hope you will get to learn from this simple issue and try to explore something own to figure out the issue we face.

Something some simple things are hard to figure out due to some companies work hard building great stuff making simple stuffs complicated to be fix later!

Anyways happy learning! Enjoy.

P.S

Later found simple text placeholder color text was not taking effect, maybe scss is not compiling the placeholder css code as default placeholder target selector, added below code to target text field, select and textarea individually and it started working for different parts of the application where used.