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10. Marie Curie (1867 – 1934)

     “ONE NEVER NOTICES WHAT HAS BEEN DONE; ONE CAN ONLY SEE WHAT REMAINS TO BE DONE.”

     Polish physicist and chemist, Marie Curie was a pioneer in the field of radioactivity, the only person honored with Nobel Prizes in two different sciences, and the first female professor at the University of Paris. She founded the Curie Institutes in Paris and Warsaw. Her Achievements include the creation of a theory of radioactivity (a term coined by her), techniques for isolating radioactive isotopes, and the discovery of two new elements, radium and polonium.

Marie Curie

9. Alan Turing (1912 – 1954)

     “SCIENCE IS A DIFFERENTIAL EQUATION. RELIGION IS A BOUNDARY CONDITION.”

     English mathematician and logician, Turning is often considered to be the father of modern computer science. He provided an influential formalization of the concept of the algorithm and computation with the Turning machine. With the Turning test, meanwhile, he made a significant and characteristically provocative contribution to the debate regarding artificial intelligence. He later worked at the National Physical Laboratory, creating one of the first designs for a stored-program computer.

Alan Turing

8. Niels Bohr (1885 – 1962)

     “AN EXPERT IS A MAN WHO HAS MADE ALL THE MISTAKES WHICH CAN BE MADE IN A VERY NARROW FIELD.”

     Niels Bohr was a Danish physicist who made fundamental contributions to understanding atomic structure and quantum mechanics, for which he received the Nobel Prize in physics in 1922. Bohr’s work helped solve the problems classical physics could not explain about the nuclear model of the atom. He postulated that electrons moved in fixed orbits around the atom’s nucleus, and he explained how they emitted or absorbed energy.

Niels Bohr

7. Max Planck (1858 – 1947)

     “WE HAVE NO RIGHT TO ASSUME THAT ANY PHYSICAL LAW EXIST, OR IF THEY HAVE EXISTED UP TO NOW, THAT THEY WILL CONTINUE TO EXIST IN A SIMILAR MANNER IN THE FUTURE”

     Max Planck, a German physicist, is considered to be the founder of quantum theory, and one of the most important physicists of the twentieth century. Planck made many contributions to theoretical physics, but his fame rests primarily on his role as originator of the quantum theory. This theory revolutionized our understanding of atomic and subatomic processes.

Max Planck

6. Charles Darwin (1809 – 1882)

     “I LOVE FOOLS’ EXPERIMENTS. I AM ALWAYS MAKING THEM.”

     English naturalist and biologist, Darwin demonstrated that all species of life have evolved over time from common ancestors through the process he called natural selection. The fact that evolution occurs became accepted by the scientific community and the general public in his lifetime, while his theory of natural selection came to be widely seen as the primary explanation of the process of evolution in the 1930s, and now forms the basis of modern evolutionary theory.

Charles Darwin

5. Leonardo da Vinci (1452 – 1519)

     “ANYONE WHO CONDUCTS AN ARGUMENTBY APPEALING TO AUTHORITY IS NOT USING HIS INTELLIGENCE; HE IS JUST USING HIS MEMORY.”

     Leonardo da Vinci was an Italian polymath. He was an expert mathematician, engineer, inventor, anatomist, painter, sculptor, architect, botanist, musician and writer. Leonardo has often been described as the archetype of the “Renaissance man”, a man whose seemingly infinite curiosity was equaled only by his powers of invention. Leonardo is revered for his technological ingenuity. He conceptualized a helicopter, a tank, concentrated solar power, a calculator, the double hull and outlined a rudimentary theory of plate tectonics.

Leonardo da Vinci

4. Galileo Galileli (1564 – 1642)

     “ALL TRUTHS ARE EASY TO UNDERSTAND ONCE THEY ARE DISCOVERED; THE POINT IS TO DISCOVER THEM.”

     Galileo was an Italian physicist and astronomer. His achievements include improvements to the telescope and consequent astronomical observations, and support for Copernicanism. Galileo has been called the “Father of Modern Observational Astronomy”, the “Father of Modern Physics”, the “Father of Science”, and the “Father of Modern Science”. The motion of uniformly accelerated objects, was studied by Galileo as the subject of kinematics. His contributions to observational astronomy include the telescopic confirmation of the phases of Venus, the discovery of the four largest satellites of Jupiter and analysis of sunspots.

Galileo Galilei

3. Nikola Tesla (1856 – 1943)

     “THE SCIENTISTS OF TODAY THINK DEEPLY INSTEAD OF CLEARLY. ONE MUST SANE TO THINK CLEARLY, BUT ONE CAN THINK DEEPLY AND BE QUITE INSANE”.

     Tesla was a Serbian engineer and inventor who is often described as the most important scientist and inventor of the modern age, a man who “shed light over the face of earth”. He is best known for many revolutionary contributions in the field of electricity and magnetism in the late 19th and the early 20th centuries. Tesla’s patents and theoretical work formed the basis of modern alternating current electric power (AC) systems, including the polyphase power distribution systems and the AC motor. Aside from his work on electromagnetism and electromechanical engineering, Tesla has contributed in varying degrees to the establishment of robotics, remote control, radar and computer science, and to the expansion of ballistics, nuclear physics and theoretical physics.

Nikola Tesla

2. Albert Einstein (1879 – 1955)

     “A MAN SHOULD LOOK FOR WHAT IS, AND NOT FOR WHAT HE THINKS SHOULD BE”.
     Einstein, a German physicist, is best known for his theory of relativity and specifically mass-energy equivalence, expressed by the equation E=mc^2. Einstein received the 1921 Nobel Prize in Physics for his services to Theoretical Physics, and especially for his discovery of the law of the photoelectric effect. Einstein’s many contributions to physics include his special theory of relativity, which reconciled mechanics with electromagnetism, and his general theory of relativity, which was intended to extend the principle of relativity to non – uniform motion and to provide a new theory of gravitation.

Albert Einstein

1. Isaac Newton (1643 – 1727)

     “ TO MYSELF I AM ONLY A CHILD PLAYING ON THE BEACH, WHILE VAST OCEANS OF TRUTH LIE UNDISCOVERED BEFORE ME”.

     Newton was an English physicist, mathematician, astronomer, natural philosopher, alchemist, theologian and one of the most influential men in human history. His Philosophiæ Naturalis Principa Mathematica, published in 1687, is considered to be the most influential book in the history of science. In this work, Newton described universal gravitation and the three laws of motion, laying the ground work for classical mechanics, which dominated the scientific view of the physical universe for the next three centuries and is the basis for modern engineering. Newton showed that the motions of objects on Earth and of celestial bodies are governed by the same set of natural laws by demonstrating the consistency between Kepler’s laws of planetary motion and his theory of gravitation. In optics, he built the first “pratical” reflecting telescope and developed a theory of color based on the observation that a prism decomposes white light into a visible spectrum. He also formulated an empirical law of cooling and studied the speed of sound. In mathematics, Newton shares the credit for the development of the differential and integral calculus. He also demonstrated the generalized binomial theorem, developed the so called “Newton’s Method” for approximating the zeroes of a function, and contributed to the study of power series.

Isaac Newton




List of Top 10 Scientists


     1. Isaac Newton
     2. Albert Einstein
     3. Nikola Tesla
     4. Galileo Galilei
     5. Leonardo da Vinci
     6. Charles Darwin
     7. Max Planck
     8. Niels Bohr
     9. Alan Turing
     10. Marie Curie

Usage of prototype

     prototype it is a property of Function, and it is used to add some extra function to an existing function, or override the function.
     If you create an empty function.
prototype in javascript

JavaScript functions of an object literal

     We can define the JSON function inside the function variable, this can have more functions and variables.
Json functions in javascript

JavaScript Classes and Objects

     The following example is explain you to learn about basics of javascript classes and objects. In the following example we have created a variable funvar including fun1 and fun2 functions.
Javascript OOPS

Problem and solution for Floating-Point Arithmetic

     Do you know the problem when Adding or subtracting the floating point number? See the below

0.1+0.2=? floating point calculation error

Problem when using trim() in Internet Explorer

     Internet explorer don't have string.trim() method instead of this, you can use jQuery method like $.trim().
     If  you using trim(), method the internet explorer will shown error "Object doesn't support property or method 'trim'. So you should use the jQuery method.

trim() in JavaScript

HTML <audio> element

     <audio> tag is used control the audio files like mp3, wav, ogg and etc.

Play audio file using HTML audio tag

Contenteditable div

     Contenteditable is used to convert the div, span or other html element to editable mode, (eg- allow entering the text or deleting the existing characters). This is the new attribute in HTML 5.
Contenteditable in html5

CSS3 infinite animation

     In CSS3 we can easy to make animation without using any jQuery or JavaScript methods. In the following tutorial, we create a CSS 3 animation with infinite loop.
CSS3 Infinite animation

Difference Between eval() and window[]

     Both eval and window[] is used to convert string to JavaScript variable or method but little difference is shown below.


window[]

  1.      This is can access the global variable only
  2.      This is the window object.
  3.     If the variable is undefined, it will return undefined, but not an error.


eval()

  1.      eval() can access the global and local variable value.
  2.      This is interprets arbitrary JavaScript statement.
  3.      If the variable is undefined, you will get and error on executing time.
difference Between eval() and window[]

Firefox dropdown onchange not working

     In Firefox dropdown onchange not fire automatically when pressing up and down button, but we have a solution for it.
     We can manually trigger the function when the user press the up and down arrow key on keyboard.


Steps

  •      First check the browser.
  •      If it is Firefox, load the keyup event for the particular id.
  •      Inside the keyup function should check is it Up(38) or Down(40) Key.
  •      Call the function.
Firefox dropdown Onchange not working problem

Output tag in html5

     Output tag is the new in HTML 5, this having many usage for displaying result instantly in div, text box or any other html elements. Output tag is not working in most internet explorer browsers. Calculating the value without using script.
output Tag in HTML 5

Yoututbe Video QueryStrings

     Youtube provide lot of options to play youtube video on your website or blog very easier, when you integrate youtube video on your website, you can add the following query strings.

Integrate youtube video on your website

     We can use the youtube video on our website, using iframe option, youtube is provide some code to integrate the video on the website.

Youtube integration code

copy the give url and paste it to your website

<iframe width="560" height="315" src="https://www.youtube.com/embed/40x5Hv534PA" frameborder="0"></iframe>
The output is shown below



Add youtube video with query string

     Query strings are pass with the end of the url's like www.example.com?a=1&b=909 , similarly youtube also having more query string for different purpose.


HD=1  
The video will play in High Quality Size.
autoplay=1
When we load the youtube video, it will play without asking permission.
start=60
Th video will play from sixteenth(60) seconds.
loop=3
The video play three times, it will not stop when the video play first and second time.
vq=small
Video will play 240Pixel size
vq=medium
Video will play 360Pixel size.
vq=large
Video will play 480Pixel size.
vq=hd720
Video will play 720Pixel size.
rel=0
To disable to display the suggested video, after played the youtube video.
showinfo=0
Remove the title from the video.
fs=1
Full screen allowed.
Fs=0
Full screen not allowed.

Example:

<iframe width="560" height="315" src="https://www.youtube.com/embed/40x5Hv534PA?loop=3&Fs=0&rel=0&start=60" frameborder="0" start="48" loop="5" autoplay="1" HD="1" allowfullscreen="1"></iframe>

Load Youtube video using jQuery

     The following code will teach you to dynamically load youtube video to your website or blog. All youtube videos are working with a video code like youtube.com/watch?v=xxxxx.
Dynamically load youtube video using jQuery

Hide URL Link

     The following tricks will help you to hide the link when mouse over the <a> tag link. It is the very simple tricks to hide this URL.

Hide a Tag URL Link from status bar

If you want to disable put the href="javascript:void(0)" instead of href="http://www.google.com"  and write the url inside the onclick event like below.

Notification

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