Digital Filtering and Exact Reconstruction of Digital Audio
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Introduction
This elaborates some of the claims in my insights article on digital audio.
The Sinc Function
The first link in my insights article has…
Introduction to Modern Digital Audio Concepts
IntroductionFirst, we need some background in Digital Signals. This can be mathematically quite advanced, but since I would like this…
Why ChatGPT AI Is Not Reliable
I'll start with the simple fact: ChatGPT is not a reliable answerer to questions.To try to explain why from scratch would be a heavy lift, but fortunately,…
What Are Infinitesimals – Simple Version
Introduction
When I learned calculus, the intuitive idea of infinitesimal was used. These are real numbers so small that, for all practical purposes (say…
A Lesson In Teaching Physics: You Can’t Give It Away
A central principle of Physics Forums regarding homework help is not to provide solutions on demand but to guide students along a path to the answer. The…
Programming an ATmega8A using Arduino
If you are interested in programming and electronics, you probably do not need an introduction to Arduino. If you want to make your Arduino projects permanent,…
Quantum Computing for Beginners
This article provides an accessible introduction to quantum computing, a cutting-edge technology that processes certain types of information much faster…
The LCEVC Coding Standard and 8K Television
Introduction
First, for background, here is an overview of the most common video compression standard in use today, H264: https://www.maketecheasier.com/how-video-compression-works/H265…
Corrections to the Australian Physics Olympiad Questions and Solutions
ref: asi.edu.au/programs/past-exams/physics-olympiad-past-exams/
Classification of issues:
[1*] Quibble regarding the solution.
[2*] Clearer problem…
Create an Android Ringtone Picker with Ringtonemanager Class
In this article, I will show you how to create a ringtone picker using the RingtoneManager class in Android. You will be able to get the list of tones,…
AI and Learning: How It Impact Our Future
We asked our PF Advisors “How do you see the rise in AI affecting STEM in the lab, classroom, industry, and or in everyday society?”. We got so many…
How AI Will Revolutionize STEM and Society
We asked our PF Advisors "How do you see the rise in AI affecting STEM in the lab, classroom, industry, and or in everyday society?". We got so many great…
An Intro to the Systemless Interface of Rooting Android Phones
What you can learn from this article:What is meant by rooting an Android phone
Steps to take before proceeding to root your phone
Google’s…
Clearing Misconceptions and Some Tips on Debloating Android Phones
What is bloatware?
When you unbox your new phone, it comes with Android which is pre-installed by the manufacturer. This is termed “stock firmware”.…
How to Avoid Breaking Physics With Your “What If” Question
We get a lot of "what if" questions here on Physics Forums. This article will explore three different types and then some suggestions for students who…
How to Evaluate a Camera Lens for Performance
I've done plenty of imaging performance testing on a variety of systems, from millimeter wave to UV. Until very recently, such testing required expensive…
What Discovery Will Be the Revolutionary Within 20 Years?
We asked our Physics Forums Science advisors "What technology or scientific discovery will be the most revolutionary within the next 20 years?" Here are…
Aiming High and Managing Distractions as Keys to Success for Science Majors
Over the years, I've noticed some distinct trends among the physics and chemistry majors I've mentored and worked with.Those with GPAs in the 3.8-4.0…
An Accurate Simple Harmonic Oscillator Laboratory
Learning Objectives
* Execute a specific experimental procedure to test a specific hypothesis.
* Use the Tracker video analysis software for a simple…
Guide to Buying Your First Telescope
We often have questions about what telescope an aspiring amateur astronomer should buy. The "correct" answer can be elusive and is highly dependent on…
What Are Your Favorite Science or Math Blogs?
We asked our PF Advisors to tell us what their favorite science or math blog is (other than PF Insights).We also have a physics blog list here.Here…
What Academic Advice Would You Tell Your 18 Year Old Self?
We asked our PF Advisors to tell us what academic advice would you tell your 18 year old self. Here are their responses…Thanks to all the PF…
What’s Your Most Memorable Textbook?
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Learn 3 Tips For Cooling Off Hot Debates and Win The Argument
Civil discussion and debate are critical to Physics Forums. But it is also important in everyday life. When arguments get overheated, people…
The Birth of a Physics Textbook: An Author’s Journey
It is said that you should accomplish three things in life:Plant a tree.
Have a child.
Write a book.Out of the three, I have…
10 Math Tips to Save Time and Avoid Mistakes
Exam situations are always situations of stress. It comes with our endeavor to be as good as possible together with our fear of failure. Some students…
Getting Started with Solar System Imaging
Some of the most visible objects in the sky are objects within our solar system: including the Sun, moon, and planets. These objects are generally much…
An Introduction to Computer Programming Languages
In this Insights Guide, the focus is entirely on types of languages, how they relate to what computers do, and how they are used by people. It is a general…
Digital Camera Buyer’s Guide: Tripods
A tripod holds a camera still while the shutter is open, preventing motion blur. The tripod must be able to maintain this stability in…
Digital Camera Buyer’s Guide: DSLR
I'm ready for a DSLR!
A: These cameras were originally designed for professionals. Users of these cameras are expected to already understand…
Learn Advanced Astrophotography Tips
"I’ve tried astrophotography and want to know how to improve."Here’s where I assume you are contemplating the purchase of a tracking…
Learn Intermediate Astrophotography Tips
Level 2: I know how to use a camera, what do I need to know for astrophotography?
Image processing methods used to reduce background and noise…
Introduction to Astrophotography for Beginners
For this Insight series (3 total), I assume that either you are using a camera (with an attached lens) or you already know how to attach…
Digital Camera Buyer’s Guide: Bridge Cameras
This article is geared towards:I've never owned a camera, but I want to get a 'real' camera (that doesn't cost too much).
I've owned an entry-level…
Ultimate Digital Camera Buyer’s Guide: Compacts, DSLR and Tripods
Introduction
First, congratulations! Camera technology has advanced to the point where a complete novice, using an entry-level camera right out of the…
Digital Camera Buyer’s Guide: Introduction
First, congratulations! Camera technology has advanced to the point where a complete novice, using an entry-level camera right out of the…
So I Am Your Intro Physics Instructor
I posted this elsewhere (on my blog), and someone mentioned that maybe it might also be useful here on PF. So I'm reproducing the entire entry here in…
Reflections on Technology Product Quality
On Hardware Quality
It is impossible to test quality into a product. Quality must be designed into the product.The hardware designer is always responsible…
How to Self Study Abstract Algebra
There are three big parts of mathematics: geometry, analysis, and algebra. In this insight, I will try to give a roadmap towards learning basic abstract…
5 Problems with Students Self Studying Mathematics
For several years already I have been trying to help students who have been self-studying math. I did this completely free with no compensation for me.…
Resources for High School Physics at Home
A year-long high school Physics course is important preparation for all college majors in science, engineering, and medicine because students in these…
How to Self Study Intermediate Analysis Math
If you wish to follow this guide, then you should know how to do analysis on ##\mathbb{R}## and ##\mathbb{R}^n##. See my previous insight if you wish to…
How to Self Study Linear Algebra for Students
In this insight, I will give a roadmap to learn the basics of linear algebra for students. Aside from calculus, linear algebra is one of the most applicable…
Resources for High School Math at Home
The popularity of homeschooling and failures of the public schools often present the need for parents to teach or supplement college preparatory math courses…
Am I Cut Out for Mathematics or Sciences?
We often get threads from new members asking whether they are cut out for mathematics/physics/engineering/whatever. For some reason, they have become discouraged…
In High School and Want to Do Advanced Mathematics?
This insight is written for high school students who don't feel very challenged by their high school courses. Or maybe those high school students who want…
Learn the Secrets of Successful Science Projects
Abstract
Over the past few years, the author and his wife have served as teachers, qualified scientists, mentors, and/or parents on dozens of science…
How to Self Study Geometry for Students
Geometry is one of the oldest parts of mathematics. It has been studied and advanced by the greatest minds humankind has to offer. It has been described…
How to Self Study Analysis: Intro to Analysis
This is a sequel to my posts on self-studying mathematics. I have already given a very detailed road map on how to study high school mathematics and calculus.…
A Guide to Going Back to School For Math or Science
Motivations for creating the series
I came to Physics Forums originally to read ZapperZ’s thread about becoming a physicist back in 2013. It was one…
A Guide to Self Study Calculus
We often get questions here from people self-studying mathematics. One of those questions is what mathematics should I study and in what order.…
Dealing with Doubt as a Science Student
Doubt, as odd as this may sound, can be essential to our living. We all make decisions and later have questions on whether we made the right choice or…
The Best Methods to Deal with Procrastination
It's 6:30 in the morning. You've just woken up and you feel so sleepy you think to yourself "A few more minutes can't hurt." And so you drift on to sleep…
Your Curriculum Vitae As a Physics Graduate
I am going to backtrack a little bit and talk about writing your Curriculum Vitae (CV) and what you should focus on in search of…
How to Get a Postdoctoral Physics Position
If you intend to pursue an academic/research career, chances are, you will need postdoctoral experience. This is typically a 2…
How to Get a Physics Job
In the previous chapter, we have reached the point where you have finished with your thesis defense, and also thesis submission…
Your Physics Thesis Defense Guide
At this point, you have completed writing your thesis, your adviser has approved it, and you have distributed it to all the members…
How to Write Your Doctoral Thesis/Dissertation As a Physics Major
At this stage, you have performed your doctoral research work, maybe even have published (or about to publish) a paper or two,…
Oral Presentations – Addendum | Physics Career
I'll try not to make a habit out of this, but I believe there's something to add to this chapter of the series.In Part XIV, I mentioned the APS Meetings…
How to Publish in a Physics Journal (Addendum)
When I first wrote this part of the series, I wasn't quite sure if I should include this. for most people submitting to most of the physics journals,…
How to Succeed at Oral Presentations As a Physics Major
I mentioned earlier that there are two ways for physicists to communicate their work. The first is via publications in peer-reviewed…
How to Write a Master Degree Thesis As a Physics Major
Your First Scientific Paper Ought to be good!
Structure and Contents of a Master's Degree Thesis
This guide was written some years ago as a guideline…
How to Publish in a Physics Journal As a Physics Major
At this stage, you are well into your Ph.D. research work, and depending on what area of physics you are in, you may already start…
Research Work and The Lab Book As a Physics Major
Now, where were we? Oh yes! You have now started with your actual research work. You and your adviser have agreed on at least the…
Choosing a Research Area and an Advisor As a Physics Major
In the previous part, I described the trials and tribulations of going through the qualifying exam that almost all graduate physics…
First years of Graduate School from Being a TA to the Graduate Exams
You are now entering your first year of graduate school. In terms of the academic aspect, you will have a set of required courses that you…
How to Enter Physics Graduate School From Another Major
I have decided to tackle this issue because it has become a very common question in many physics forums. Can someone, without a…
Guide to Publishing in Peer Reviewed Journals
From Concept to Manuscript
You've done the science. You had an idea, performed an extensive literature review, designed an experiment, ran the experiment,…
Alternative Careers for a Physics Graduate
We are still discussing the final year of your undergraduate education. So far, we have covered what you need to consider if you…
Physics Blogs You Need to Be Reading
These are some of the best physics blogs, updated regularly, written by some of the top minds. The feeds are updated on page refresh, so bookmark this…
The US Graduate School System For Physics Majors
We are still stuck in the discussion of your fourth and final year of college. This time, I feel that a clear explanation of the…
5 Common MATLAB Error Messages and How to Fix Them
In this Insight, I'll go over 5 common MATLAB error messages, what they mean, and how to fix them. Hopefully, after reading this post you'll find yourself…
What Physics Majors Should Expect from Graduate School
We are still discussing the final year of your undergraduate program where you are applying to graduate schools. In Part 5, I mentioned the…
How to Apply for Physics Graduate School
We have now reached the final year of your undergraduate program. By now, you would have gone through courses in the fundamental pillars…
Explaining the Life of a Physics Major
So far, I have covered what I believe a student needs to the end of the 2nd year of studies. In most schools in the US, an undergraduate…
How to Become a Medical Physicist in 3653 Easy Steps
For many physics students, Medical Physics is that branch of the discipline that seems to hover in the no-man's land between academia and "industry." …
Mathematical Preparations For a Physics Major
Part III: Mathematical Preparations
In most universities in the US, a student must have a declared major by the end of his or her second…
How to Survive the First Year of College As a Physics Major
Part II: Surviving the First Year of College
This part covers the survival tips of the first two undergraduate years. So now you’re in college,…
Early Physics Education in High Schools For Physics Majors
So You Want to Be a Physicist: A 22 Part Guide
Introduction: The motivation for creating the series
One of the most frequent questions…
Overcoming Learning Challenges Faced Studying Science
Introduction
For the past few days, during my summer break, I have been intensively self-studying mathematics (namely number theory) for several hours…
A Layman’s Guide to Detecting Pseudoscience
It seems nowadays that we are getting swamped with science. But not the science of the valid kind. Science is where people follow scientific methods based…
Learn Solar Eclipse Viewing Basics
Eclipse Viewing Key PointsNEVER view the sun with the naked eye for any length of time, as doing so may cause irreversible eye damage or blindness.
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The Science Crackpot Index and Bingo Game
Discussing science online can often be a frustrating experience if no quality controls are in place, which is often the case. As part useful reference…
Studio in a Box: Learn About Digital Modeling Amplifiers
Digital Modeling Key Points Digital Signal Processing (DSP) was introduced in the mid-seventies, allowing musicians to simulate the acoustic properties…