The Best 3D Printers to Buy for your needs

Do you want to buy a 3D Printer? Here is the guide that will help you in choosing the best 3D Printer for your specific needs. Whether you need a 3D printer for your home use, industrial production, designing, educational purpose or simply as a hobbyist, here is a 3D Printer for you.

So before buying a 3D printer, you should have a look at these top picks, so that you can select the 3D Printer that suits you best.

Disclaimer: I may earn a small commission for purchases made through the links provided on this page.

1. QIDI TECH X Plus 3D Printer

Buy this Product from your Country's Amazon Store

(US, UK, Canada, Germany, France, India)

Who should buy it ?

It is suitable for designers, engineers, hobbyists, educational institutions and home users. Industries can use it for product development.

Brand Name

This 3D Printer is manufactured by R QIDI TECHNOLOGY. It has 6 years of manufacturing experience and develops high performance 3D printers with very high quality.

Operating System

It supports Windows & mac operating systems

Compatible Software 

It is compatible with software like Simplify3D and Cura

Color 

Available in Multi-color

Why should you choose this 3D Printer?

• You can use 3D printer by QIDI TECH to print advanced materials such as Nylon, Carbon Fiber and PC.
• It is possible to produce complex and giant sized models with the help of QIDI TECH 3D Printer (X Plus).
• X plus can save the breakpoint and resume printing later
• This 3D printer can shut-off automatically after finishing product printing job.

It offers almost all the features that a good 3D printer should have like-

• Quiet printing 
• Wi-Fi connection
• Air purification
• Break point printing and
• One-button quick leveling

2. Dremel DigiLab 3D40 Flex 3D Printer

Buy this Product from your Country's Amazon Store 

(US, UK, Canada, Germany, France, India) 

Who should buy it?

It would be the best choice for hobbyists, beginners, teachers and students. You can use it in classroom or at your home.

Brand Name

Dremel 

Software 

It supports Dremel Digilab 3D Slicer (Included), Cura, Simplify3D, Craftware, KISSlicer, Slic3r and Repetier.

Operating System

It is compatible with Windows, MacOS, iOS and Chromebook 

Why should you choose this 3D Printer?

• Fully enclosed housing
• 3.5" full color touch screen
• Flexible build plate
• Automated 9-point leveling
• Network friendly and cast Connectivity (with Wi-Fi, ethernet and USB connectivity.)
• This 3D printer can print with very high accuracy of 50 micron resolution

3. Creality Ender 3 V2 3D Printer

Buy this Product from your Country's Amazon Store

(US, UK, Canada, Germany, France, India)

Brand Name

Tresbro

Operating System

It supports Windows XP/7/8/10, MAC

Software

It is compatible with Simplify 3d/Cura

Why should you choose this 3D Printer?

• Technical support for 24 hours with 1 year warranty
• Brand new user interface
• Rotary knob added on the extruder makes filament load and feed effortless
• No noise during printing
• New injection tensioner
• Carborundum glass platform
• V-guide rail with high standard
• Print precision of ±0.1mm

4. ANYCUBIC Photon 3D Printer

Buy this Product from your Country's Amazon Store

(US, UK, Canada, Germany, France, India)

Brand Name 

ANYCUBIC

Where this 3D Printer can be used (Applications)?

It can be used for jewelry and toys designing, in dental industry, miniature making, architectural design and manufacturing.

Why should you choose this 3D Printer

• Good service and customer support
• High quality CNC parts
• Smart and user friendly
• 2560x1440 2K HD masking LCD
• Extreme precision and detail
• Efficient and high speed printing
• Fast slicing software (photon slicer)

Boyle's Law - Boyle's Law Simulation - Boyle's Law Animation - Boyle's Law PhET Simulation

In this video simulation you will learn, What is Boyle's Law. Boyle's Law has been demonstrated along with the Definition of Boyle's Law. This video simulation has been created by using PhET Simulator.

Boyle's law is also known by other names like Boyle- Marriotte law or Marriotte's law. After watching the Boyle's law animation you will understand the relationship between pressure and volume of an ideal gas when temperature and number of molecules (mass) of the gas are kept constant. The concept lying behind the Boyle's law has been explained in this simulation of Boyle's law.

What is Boyle's Law (Definition of Boyle's Law)

According to Boyle's law the pressure of a given mass of an ideal gas is inversely proportional to its volume at a constant temperature.

Boyle's Law Simulation Video

Charles Law Explained here You can Play with this PhET Simulation (Boyle's Law) using the link given below- https://phet.colorado.edu/sims/html/gases-intro/latest/gases-intro_en.html Credits : PhET Interactive Simulations University of Colorado Boulder 

https://phet.colorado.edu

Charles Law - Charles's Law - Charles Law Experiment - Charles Law Simulation - Charles Law PhET

This video explains, What is Charles Law (Charles's Law or Charles' Law). This simulation video has been created by using PhET simulation. In this Charles simulation you will understand the definition of Charles's law, the formula of Charles law and also the concept of Charles law.

After watching the Charles simulation video you will understand the relation between volume and temperature in adiabatic process (relation between volume and temperature when pressure is kept constant). The concept of gas pressure has also been explained here.

Definition of Charles’ Law

At constant pressure, the volume of an ideal gas is directly proportional to the absolute temperature.

Charles Law Simulation Video

Boyle's Law Explained You can Play with this PhET Simulation (Charles Law) using the link given below- https://phet.colorado.edu/sims/html/gases-intro/latest/gases-intro_en.html Credits : PhET Interactive Simulations University of Colorado Boulder https://phet.colorado.edu

Todays Exciting deals

Google Tricks (Google Mirror, Google Space, Askew Google, Google Gravity, Google Underwater, Voxels)

In this video you will get new Google Tricks that you may not have seen before. Here is the collection of new 9 Google Tricks that you would love. You must try all of these Amazing google tricks.

Following Google Tricks are covered in this video

1.Water Type Mr. Doob (Water Type)

2.Askew/Tilt Google

3.Google Mirror

4.Google Space

5.Voxels

6.Voxels Liquid

7.Google in 1998

8.Google Gravity and

9.Google Underwater

Google Tricks Video

Credits: Google and Mr. Doob

Google Gravity - Google Gravity im Feeling Lucky - Google Zero Gravity - Google gra

Here you will enjoy the amazing google trick known as GOOGLE GRAVITY. For google gravity to work, all you need to do is, just type google gravity in google search. Then click on the top google search result - google gravity - mr. doob.

In google gravity google trick you can play with whatever is written on the screen just by throwing everything with the help of your your mouse. Google gravity trick can also be searched by other names like google no gravity, google low gravity, google zero gravity, no gravity google or google gravitation etc. Google gravity is my favorite google trick.

Google Gravity

What is Consciousness - Where is Consciousness Located in the Brain - Artificial Consciousness

This exciting article discusses, What is consciousness. What is the level of consciousness of non living things and different forms of life on earth. Where is Consciousness Located in the Brain and can we make a computer conscious just by running the simulation of a human brain on a computer (Artificial Consciousness). So Let's understand the mystery of consciousness from a different point of view. So let's first start with...What is the Consciousness?

What is Consciousness (Definition of Consciousness)

In simplest words we can say, consciousness is the Awareness of internal or external existence. So it is the consciousness that makes us feel, understand and respond to our surroundings and our inner self. It is because of the consciousness that we can understand that one day we were born and someday we will die.

What is the level of consciousness of non-living things and different forms of life on earth

So we can say that a tree is more conscious than a stone. Because a tree can respond to its environment in many ways like they can adapt to their environment, make their own food and lots of other things but a stone cannot do anything like that. In the same way, an insect is more conscious than a tree. Most animals are more conscious than insects and similarly human is more conscious than all the animals because humans can respond to their environment and surroundings in much more intelligent ways in comparison to other forms of life. We are conscious about our existence that we are living. We can remember and feel the past memories and experiences. we can feel the present moment and also can predict the future on the basis of our past memories and intelligence.

You can easily understand, how a person cannot respond to its surroundings when he or she is unconscious or in other words unaware. Here it is a very important to note that consciousness and intelligence are two different things. A super intelligent robot or a supercomputer can be more intelligent in terms of analytical skills, memory, ability to predict on the basis of large amounts of data provided to it and in many other ways but is not at all conscious about its own existence. Even a tree or insect is far more conscious than the most advanced supercomputer that we have.

The Concept of Artificial Intelligence

According to researchers, even a sophisticated simulation of human brain running on a digital computer cannot be conscious. We can never create a conscious computer just by programming the computer for consciousness. it would just be simply a computer doing a task for which it has been programmed, but completely unaware of its own existence.

It is similar to the fact that just by simulating the immense gravitational pull of a black hole on a computer does not actually deform the space time fabric around the computer. But Harvard scientists think that they might be very close to pinpoint the location of consciousness in our brain.

Where is Consciousness Located in the Brain

According to researcher Michael Fox from the Beth Israel Deaconess Medical Centre at Harvard Medical School- "For the first time, we have found a connection between the brainstem region involved in arousal and regions involved in awareness, two prerequisites for consciousness". So arousal and awareness are two critical components of consciousness. Researchers have shown that arousal is likely regulated by brainstem which is the portion of the brain that links up with spinal cord. They have found two cortex regions in the brain that seems to work together to form consciousness. Although scientists are working hard but still a lot needs to done in this area to uncover all the mysteries of consciousness. Hope one day we will know all about consciousness that gives us the feeling of our own existence as a living being. Stay conscious!!!

What is Consciousness Video

Buddha Quotes - Buddhism Quotes - Gautam Buddha Quotes - Buddha Quotes on Life

These Top Buddha Quotes can change your life for ever. You will surely be highly inspired by these Buddhism Quotes. All the Gautam Buddha Quotes are filled with pure wisdom. Lord Gautam Buddha had the deepest understanding of the Human Psychology and behavior.

In this video you will find the best quotes by Buddha on various topics like - Buddha Quotes on Life, Buddha Quotes on Love, Buddha Quotes on Peace, Buddha Quotes on Happiness, Buddha Quotes on Anger, Buddha Quotes on Relationships and Friendships and so on. I am sure you will love these Famous Quotes by Buddha and it will help you in transforming your life for better.

Buddha Quotes Video

Credits : LORD GAUTAM BUDDHA

40 Human Psychology Facts - Psychological Facts - Psychology of Human Behavior Facts

In this video you will learn 40 amazing Human Psychology Facts. These psychological facts will help you in understanding the Psychology of Human Behavior. I am sure you are going to love all the facts on human psychology.  

Although you may be knowing some of the psychology facts but you would definitely find many new facts about human psychology. Every psychological fact will help you in understanding human behavior and different types of human personalities in a better way. 

Psychology of Human Behavior Facts Video

Imagination Power of Mind - Reality is an illusion - You Can Create Your Own Reality (HINDI)

How You Can Create Your Own Reality

This video is about the imagination power of mind. In this video I will show you how you can create your own reality. Actually there is no reality, because everyone in this world observes it with his or her own perspective. Any event has different meanings to different people. So in other words, reality is an illusion.

One important weakness of our brain is- It cannot differentiate between reality and imagination. So we can use this weakness of brain for our own purpose to create our desired reality. We can imagine what we want and our reality will literally change according to our imagination.

Imagination Power of Mind Video

7 Wonders of the World - 7 Wonders of the World Google Earth - Seven Wonders of the Modern World

In this Amazing Video you will see Real Pictures of the 7 Wonders of the World on Google Earth. All the seven wonders of the World are covered here. The 7 wonders shown here are the seven wonders of modern world. On google earth you can see how the seven wonders look in the present time (Aerial View).

Seven Wonders of the Modern World

1.Colosseum (Amphitheatre in Rome, Italy) 2.Christ the Redeemer (Statue created in 1931) 3.Taj Mahal (Mausoleum in Agra Utter Pradesh) 4.Great Wall of China 5.Machu Picchu (Peru) 6.Chichen Itza 7.Petra (Jordan)

Seven Wonders of the Modern World Video

Credits: Google Earth

How to Enable Dark Mode on YouTube Android - YouTube Dark Mode Android - Dark Theme on YouTube

Here you will learn How to Enable Dark Mode on YouTube Android. You can easily turn on dark mode (Night Mode or Dark Theme) by following these simple steps.

Why you should Enable Dark Mode on YouTube (Benefits)

Do you know that switching to dark mode, videos stand out against the dark background for much better visibility. Dark theme helps in reducing glare and improving night viewing. In dark mode White text is written on black background while in light mode, dark text is written on light background. You can also try the dark mode on your desktop.

How to Enable Dark Mode on YouTube Android Video

How Many Dimensions are There in the Universe - Dimensions according to Super String Theory, M Theory and Bosonic String Theory

How Many Dimensions are there in the Universe according to different Theories

Here we will learn, how many dimensions are there in the universe according to different theories and why we find it impossible to perceive higher dimensions. Here you will know number of existing dimensions according to Classical Physics, Superstring Theory, M Theory and Bosonic String Theory.

Dimensions according to Classical Physics

According to classical physics there are 3 dimensions of space and the fourth dimension is the time. Any object in the first dimension would have only one dimension i.e. length. If someone is living in a one dimensional Universe then he would be able to move in a straight line only. There would be no left and right or up and down for him. A straight line is an example of one dimensional object. While for two dimensional objects we have one more dimension added to it. So it would be a plain object having Length and breadth. A person living in a two dimensional universe can move freely in a plain only but cannot leave that plain. For him there would be no up or down. A square or a rectangle are examples of two dimensional objects. On adding one more dimension to a two dimensional universe, we enter into a three dimensional universe. Actually we live in a three dimensional universe where we can move in any direction in space. We can move in a straight line, take left or right turns or move in up or down directions as per our wish. Spheres, pyramids, cube and all the humans, animals are examples of three dimensional objects. So these were the first three dimensions of space according to classical physics. Actually we don't live in three dimensions of space only. We also live in a one more dimension known as time. In space we can move in any desired direction in all the 3 dimensions but in the fourth dimension time we can only move in the forward direction. Now we will discuss how many dimensions are there according to different theories.

Dimensions according to Super String Theory, M Theory and Bosonic String Theory

Actually for mathematical consistency of string theory extra dimensions of spacetime are required. Superstring theory requires 10 spacetime dimensions while according to M theory there are total 11 dimensions. In Bosonic string theory spacetime is 26 dimensional. But now the question arises, if there are so many dimensions, why we are able to perceive only first 4 dimensions? Why we can not experience higher dimensions?

Why We Can Not Perceive Higher Dimensions?

Actually according to some studies extra dimensions may be "curled up" at extremely small scales. The scale is too small to be visible to current experiments. It is very hard to imagine higher dimensions for our brain as we live in a 3 dimensional universe. Its similar to a case where for a person living in 2 dimensional space, it's very difficult to imagine a 3 dimensional world. This is the reason why we can not perceive higher dimensions.

How Many Dimensions are There in the Universe Video

Single Mode and Multimode Fiber - Single Mode Fiber Advantages - Step Index Optical Fiber

This video describes the difference between single mode optical fiber and multimode Optical Fiber. This video also covers the advantages of using single mode optical Fiber. Here you will learn what are Step index fibers and types of step index fibers. Step index fibers are of two types, single mode step index fibers and multimode step index fibers. You will learn here, many benefits of using single mode fibers over multimode fibers and other types of fibers.

Optical Fiber Communication Block Diagram

This Video lecture discusses the block diagram of optical fiber communication. Here you will learn functioning and purpose of each block (stage) used in optical fiber communication. These stages of optical fiber communication block diagram are - Information source, Electrical transmit, optical source, photo detector,electrical stage (receiver) and destination.

Funny Robot Showing its Yoga Skills | Robotic Arm (Robotic Hand) and Leg Movements | Robot Degrees of Freedom

This video displays a robot. You will see in this video the robotic arm movement (robotic hand movement) and robotic leg movement. This Robot moves its body and generates different kinds of sounds as it moves its body parts.
You will surely Enjoy this funny robot. In this video this robot shows the movement of hands, shoulders, elbows, wrists, fingers, legs, head and more...
So enjoy this robotic engineering project.

Funny Robot Showing Yoga Skills

Lord Shiva's Mount Kailash View From Satellite Map in Google Earth | Mount Kailash Google Earth View | Kailaya Malai

Here you will find the Lord Shiva's Mount Kailash View From Satellite Map in Google Earth.
This is how the Mount Kailash (Kailash Parvat) looks from satellite. Kailaya malai is the aerial view of Mount Kailash. Here you will see the beauty of Mount Kailash (kailash Parvat). 
Take a Look at Lord Shiva at Mount Kailash on google Maps (google Earth) - Areal View of Mount Kailash.

Lord Shiva's Mount Kailash View From Satellite Map in Google Earth

Indian States and Capitals | States and Capitals of India | Union Territories and their Capitals | Union Territories of India

This video is about Indian States and their Capitals. Here you will also find the Union Territories of India and their Capitals.
The video given below will help you in knowing all the Indian states and union territories of India and their capitals.

Is video mein bharat ke Rajya aur unki Rajdhani batai gayi Hai. Sath Hi aapko yahan par bharat ke Kendra shasit Pradesh aur unki rajdhaniyon ke baare me bhi bataya gaya hai.

Indian States and Capitals (Union Territories and their Capitals)

List of Chief Justice of India | Chief Justices of India | Supreme Court Chief Justice | Mukhya Nyayadhish

This video is about the Chief Justices of India. Here you will find the complete list of chief justice of India (supreme Court chief justice).
The name of Chief Justices of India, their tenure is also included here. You can find the first chief justice of India and also the Chief Justice of India at present with its name and tenure.
It is to be noted here that the first chief justice of Supreme Court of India was Harilal J. kaniya and chief Justice of India at present is Ranjan gogoi.

Is video mein Bharat ke mukhya nyayadhish aur unke karyakal ke baare me bataya gaya hai. Sath hi Aap Bharat ke Supreme Court ke pratham Mukhya nyayadhish aur vartaman mukhya nyayadhish ke baare mein bhi Jaan sakte hain.

List of Chief Justice of India (Mukhya Nyayadhish)

List of Indian Presidents | Bharat Ke Rashtrapati | General Knowledge (GK)

In this video you will find the list of Indian Presidents. This list covers the names of Presidents of India along with their tenure. The date of birth and the date of death is also mentioned for each Indian President. The name, birth date and tenure of first president of India and the president of India at present can also be found in this video.

Is video mein aapko bharat ke Rashtrapati ke naam aur unka karyakal milega. Aap is video mein krambadhh tarike se Bharat ke Rashtrapati ke Naam Ki Suchi aur Unka Karyakal dekh sakte hain. Bharat ke Pratham Rashtrapati (dr Rajendra Prasad) Aur bharat ke vartaman Rashtrapati (shri Ram Nath kovind) ke bhi jeevankaal aur unke Karyakaal ke baare mein aapko Jankari Hasil Hogi.

List of Indian Presidents | Bharat Ke Rashtrapati

List of Prime Ministers of India | भारत के प्रधानमंत्री | Bharat Ke Pradhan Mantri (with Dates) | General Knowledge (GK)

In this video you will find the list of Indian Prime Ministers. This list covers the names of Prime Ministers of India along with their tenure. The date of birth and the date of death is also mentioned for each Indian Prime Minister. The name, birth date and tenure of first Prime Minister of India and the Prime Minister of India at present can also be found in this video.

Is video mein aapko bharat ke Pradhan Mantri ke naam aur unka karyakal milega. Aap is video mein krambadhh tarike se Bharat ke Pradhan Mantri ke Naam Ki Suchi aur Unka Karyakal Dekh sakte hain. Bharat ke Pratham Pradhan Mantri (Pandit Jawaharlal Nehru) Aur bharat ke vartaman Pradhan Mantri  (Mr. Narendra Modi) ke bhi jeevan Kaal aur unke Karyakaal ke baare mein aapko Jankari Hasil Hogi.

List of Prime Ministers of India | भारत के प्रधानमंत्री | Bharat Ke Pradhan Mantri (with Dates)

National Symbols of India | Bharat ke Rashtriya Pratik | General Knowledge (GK)

This video describes the National Symbols of India (Bharat ke Rashtriya Pratik) like- national flag (tricolour/ tiranga), national anthem (rashtriya gaan), national song (rashtriya geet), national bird (rashtriya pakshi), national animal (rashtriya Pashu), national flower (rashtriya pushpa) etc.

National Symbols of India (Bharat ke Rashtriya Pratik)

Static Electricity Simulation | Triboelectric Effect | Electrostatics Simulation | John Travoltage PhET | PhET Simulations

This simulation video explains the concept of static electricity (electrostatics). This Static Electricity simulation demonstrates the generation of static charge on rubbing two bodies. You will learn how the charged body gets neutralized when it comes in contact with a third body having no charge or opposite charge. Hence you will understand the concept of electrostatic discharge (static discharge) with the help of this simulation. 
This is the John Travoltage simulation created by using PhET simulations. The PhET simulation also demonstrates Triboelectric Effect and Triboelectric series (Triboelectricity).

What is Static Charge (Static Electricity)

Static electricity is caused by rubbing two objects and one object supplying electrons to the other. This results an imbalance between positive and negative charges in the object. This causes the body to get charged. This is known as the static charge.

Static Electricity Simulation

Credits and attribution:
PhET Interactive Simulations University of Colorado Boulder https://phet.colorado.edu

Faraday Law of Electromagnetic Induction | EMI | Lenz Law Simulation | Electromagnetic Induction | PhET Simulations

Here you will understand the conceept of Faraday's Law of Electromagnetic Induction (EMI) and Lenz's Law with the help of a beautiful simulation.
This simulation of electromagnetic induction explains the concept of induced EMF in a coil, when there is a relative motion between the bar magnet and the coil.
The formula of Faraday's law of electromagnetic induction has been made clear experimentally with the help of this simulation.
At the end of this video, it explains the Lenz Law with simulation.
After watching this video you will understand that, negative sign used in the formula of Faraday's law of electromagnetic induction is because of the lenz's law.
This simulation video has been created by using phet simulations (phet Sims).

Faraday's Law of Electromagnetic Induction 

According to the Faraday's Law of Electromagnetic Induction, if a conductor is placed in a varying magnetic field then emf (electromotive force) is induced in the conductor. If the conductor circuit is closed then current is induced which is called as induced current. This induced emf is equal to the rate of change of flux linkage with the coil.

Lenz's Law definition

Lenz's law states that the direction of the induced current produced in this phenomenon is such that the magnetic field produced by this induced current opposes the magnetic field that produced it.

Faraday's Law of Electromagnetic Induction and Lenz's Law Simulation

Credits and attribution:
PhET Interactive Simulations University of Colorado Boulder https://phet.colorado.edu

Science Simulations and Animations

WATCH any VIDEO or CLICK on any LINK to Read the article of your interest in detail.

Continuity Equation in Fluid Mechanics | Equation of Continuity Animation | Fluid Mechanics Simulation | PhET Simulations physics

Photoelectric Effect | Photoelectric Effect Experiment | Photoelectric Effect Simulation | PhET Simulations Physics

Refraction of Light | Total Internal Reflection (TIR) | Refractive Index and Snell's Law | PhET Simulations



Capacitor Structure and Working | Parallel Plate Capacitor Simulation | Charging and Discharging of Capacitor | PhET Simulations

Wave Propagation on a String Simulation | Wave on String | Transverse and Longitudinal Waves

Types of Energy and Energy Transformation | Energy Conservation & Energy Conversion | PhET Simulations

Law of Energy Conservation Simulation | Energy Transformation Simulation | Kinetic and Potential Energy | PhET Simulations physics

11 Types of Orbit Simulation | Simulation of Orbit by PhET Simulator | Orbit Simulator

Analysis of Orbits | Orbit Simulator | Gravity and Orbits PhET | PhET Simulations Physics

Gravity and Orbits PhET Simulation | Sun Moon and Earth Orbits | PhET Simulations Physics

Antikythera Mechanism Explained | The Oldest Computer Ever Found

What Will Happen if Gravity Disappeared | Gravity and Orbits PhET Simulation | What if Gravity Stopped

What Happens When Two Black Holes Collide | Black Hole Collision Calculator by Omni Calculator

PhET Simulations Tutorial | Free Science Simulation Software (Open Source)

Faraday Law of Electromagnetic Induction | EMI | Lenz Law Simulation | Electromagnetic Induction | PhET Simulations

Static Electricity Simulation | Triboelectric Effect | Electrostatics Simulation | John Travoltage PhET | PhET Simulations

PhET Simulations Tutorial | Free Science Simulation Software (Open Source)

This tutorial discusses, how to use phet simulation software and how much useful these phet interactive simulations can be for Students and educators. Phet simulator is one of the best open source (Free) Science simulation software.

Phet Simulation Software (Introduction)

Phet interactive simulations is a University of Colorado Boulder project. Phet is a free and open source platform for students and educators to play with interactive simulations.
In this video you will also learn how to run simulations that are in Java . Actually all the phet simulations initially were written in JavaScript but now they are being converted into HTML5, so that these simulations can run seamlessly across all platforms and devices.

Phet simulations App (Mobile)

You can also use phet app to play with these interactive simulations on your mobile phone. You can download this app for Android from play Store.

What Fields the Phet Simulations Cover?

The phet simulations contain wide variety of interactive simulations from different subjects like-
Physics, Biology, chemistry, Earth science and math.

PhET Simulation Software Tutorial (Best open source science simulator)

Credits and attribution:
PhET Interactive Simulations University of Colorado Boulder https://phet.colorado.edu

Refraction of Light | Total Internal Reflection (TIR) | Refractive Index and Snell's Law | PhET Simulations

Here You will learn the basics of refraction of light. The concept of Total Internal Reflection (TIR) and Critical Angle has also been discussed here.
You will know, what we mean by the refractive index (the index of refraction) of a medium.
This is a simulation of refraction of light that shows, what happens when we change the refractive index of the medium.
The change in velocity of light and intensity of light has also been demonstrated in this animation of refraction of light.

What is Refraction of Light

When a light ray travels from one medium to another medium (having different refractive index) its direction changes. This phenomenon is known as the refraction of light.

This simulation of refraction of light has been created by using PhET simulations.

Refraction of Light and Total Internal Reflection (TIR)

Credits and attribution:

PhET Interactive Simulations University of Colorado Boulder https://phet.colorado.edu

Types of Energy and Energy Transformation | Energy Conservation & Energy Conversion | PhET Simulations

This video is based on different types of energy and energy transformation. In this simulation video you will understand the law of conservation of energy. 

Law of Conservation of Energy

According to the law of conservation of energy, "Energy can neither be created nor can be destroyed but can be changed from one form to another form." This is the law of conservation of energy.
This animation video based on energy conversion is created by using an online interactive simulator known as PhET simulator.
This Simulation beautifully explains the inter conversion of various energy forms like Mechanical energy, electrical energy, chemical energy, light energy and thermal energy into one another.

Law of Conservation of Energy Animation

Credits and attribution:

PhET Interactive Simulations University of Colorado Boulder https://phet.colorado.edu

Capacitor Structure and Working | Parallel Plate Capacitor Simulation | Charging and Discharging of Capacitor | PhET Simulations

In this video you will learn the structure and working of a capacitor. The basic working principle of parallel plate capacitor has been explained in detail in this video with the help of a simulation software (PhET Simulator)
After watching this capacitor simulation (capacitor animation) you will learn the concepts of charging and discharging of the capacitor.
The formula to find the capacitance of a parallel plate capacitor has been explained experimentally in this simulation of the capacitor.
In the animation video you will learn, how the capacitance of a parallel plate capacitor varies by changing its various parameters and how the energy stored in a capacitor changes.
This simulation has been created by using phet simulations.

Capacitor Working Animation (Simulation)

Credits and attribution:

PhET Interactive Simulations University of Colorado Boulder https://phet.colorado.edu

How To Convert PDF to Word Without Software Using Google Drive | How to Edit PDF File Online Free

This video tutorial explains, how to convert a PDF file into word without using any software and just by using google Drive. It is very easy to use Google Drive to convert any PDF document into Word file. This is a free and online method to convert a PDF file into Word file. You can Easily Edit the PDF file in the Google Drive. 

How To Convert PDF to Word Without Software Using Google Drive

Actually after uploading a PDF file into Google Drive, you can open it as Google docs and now it is very easy to edit the PDF file in Google Docs.
Therefore The editing of PDF file by this method requires no software downloads and installation.
So using Google drive to convert PDF file into Word file and to edit a PDF file online is the most easy and free way available.

How to Edit PDF File Online Free

Image to PDF Converter Online | JPG to PDF Converter | GIF to PDF | PNG to PDF | BMP to PDF | TIFF to PDF Converter

In this video tutorial you will learn how to convert various image formats to PDF format.
By using this online way of converting images into PDF you can easily convert the following image formats into PDF format-

Image to PDF Converter

JPG to PDF converter
GIF to PDF converter
PNG to PDF conversion
BMP to PDF converter
TIFF to PDF converter

So by using this software it is very easy to convert all these types of image formats into PDF file.

Image to PDF Converter Online

Here is the link of the online software that I have used to convert image to PDF format 
https://smallpdf.com/jpg-to-pdf

All Linux Commands List for beginners and Devops | Linux Commands Cheat Sheet

Here is a Complete List of Linux Commands for Beginners and developers (Advanced). All commands in Linux are given here in alphabetical order (A to Z).

List of Linux Commands

accept- accept or reject jobs to a destination
addresses- formats for internet mail addresses
agetty- an alternative Linux getty
alias- create an alias for Linux commands
aptitude- search and install software packages
awk- find and replace text in a file (files).

banner- To print characters as a poster
bash-  GNU Bourne-Again Shell
basename- used to display file names with directory or suffix
bzip2- To compress/ decompress given files

cal- show calendar
case- Execute a command conditionally by matching a pattern
cc- GNU C and C++ compiler
change- used to change user password information
chpasswd- to update password in a batch
clear- to clear the terminal window
cmp- used to compare (byte by byte) two files
compress- to compress one or more files and replacing the original ones
continue- used to Resume the next iteration of a loop
cp- copy contents of one file to another file

date- used to show system date and time
declare- To declare variables and assign attributes
diff- to compare files line by line
dir- this command lists the contents of a directory

echo- used to print a text of the line provided
eject- to eject removable media (CD ROM, DVD etc)
exit- To exit from the terminal

factor- to show prime factors of integer numbers
file- used to determine the file type for a file
find- this command is used to search in a directory hierarchy
format- To format disks
free- to display free and used system memory
function- To define function macros

grep- this command searches for a specified pattern in a file (s) and displays in output lines containing that pattern.
groups- this command shows the groups to which a user belongs
gunzip- a utility to compress or expand files

halt- used to halt the machine
help- to show help for a built-in command
history- this command displays the command history
host- it is a utility to perform DNS lookups

id- shows the user and group information show the current user or specified user name
if- used to execute a command conditionally
info- read the documentation in info format
ip- used to display or manage routing, devices, policy routing and tunnels.

jobs- this command displays the list of acting jobs and their status
join- this command is used for each pair of input lines, join them with the help of command field and then display on standard output.

kill- To kill (terminate) a process using its PID by sending a signal to it.
killall- this command is used to kill a process by its name

last- to show a list of last logged in users
ln- to create a soft link between files using the -s flag
locate- find files by their names
login- used to create a new session on the system

mail- utility to compose, send receive, forward and reply to emails
make- utility to maintain and recompile groups of programs
man- this command displays the manual pages for Linux commands.
merge- Three-way file merge, includes all changes from file 2 and file 3 to file 1

named- internet domain name server
netstat- to display network information
newgrp- this command is used for login to a new group

objcopy- to copy and translate object files
od- the command is used to dump files in octal and other formats
open- to open a file using its default application

passwd- used to change user password
perl- perl 5 language interpreter
ping- Send ICMP ECHO_REQUEST to Network hosts

quota- this command is used to display disk usage and space limits for a user or group

read- used to read from a file descriptor
reboot- with the help of this command you can restart the machine
reject- To accept or reject print jobs
rename- For renaming files
reset- used to reinitialise the terminal
return- To exit a shell function

shutdown- this command schedules a time for the system to be powered down.
sleep- to delay or pause for a specified amount of time
split- to split a large file into small parts.
shopt- Shell options
skill- this command is used to send signal to processes
sleep- with the help of this command you can suspend execution for a specified amount of time.

tar- it is used to store and extract multiple files from single archive.

telnet- you can interact with another host
test- it is used to check type of files and compare their values
tset- initialise the terminal

uname- it displays the current operating system name. It can also print system information
uniq- this command displays or omits repeated lines from input
users- it displays the user names that are currently logged in to the current host.

vi- a text editor utility
vim- vi improved

w- you can check who is logged on and what he or she is doing.
wget- A non interactive file download utility

xargs- used by admins to read, build and execute arguments from Standard Input.

yes- to display a string repeatedly until terminated or killed using ctrl+c

zip- this command is used to package and compress files

Linux Commands Cheat Sheet Video