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Rule of Thirds – Top 5 Tips for Photographers

What differentiates an amateur photographer and a professional is not the mastery of technical details. A good photographer knows how to compose an image well. There are many rules of composition; we will study one of the most commonly used ones. And that composition rule is called the rule of thirds.

Rule of Thirds

The rule of thirds means that you have to place your subject at any one-third of the image frame. Most of the cameras these days have an option to display various types of grids. The grid that is the most common is the 3*3 grid. So, the points where the lines meet is the point where your subjects should be placed. You would have to consider other factors along with it. Placing an image randomly on any of the points will not make an image great. Give it some thought on which point would make the most sense.

Here are some tips for you to learn and master this rule.

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Big Oh(O) Big Theta(Θ) Big Omega(Ω)

big O Notation

Analysis of Algorithms

Big O notation is a mathematical notation that describes the limiting behavior of a function when the argument tends towards a particular value or infinity. It is a member of a family of notations invented by Paul Bachmann, Edmund Landau, and others, collectively called Bachmann–Landau notation or asymptotic notation.

Big Oh Running Time Complexity
Big Oh Running Time Complexity

Two simple concepts separate properties of an algorithm itself from properties of a particular computer, operating system, programming language, and compiler used for its implementation. The concepts, briefly outlined earlier, are as follows:

The input data size, or the number n of individual data items in a single data instance to be processed when solving a given problem. Obviously, how to measure the data size depends on the problem: n means the number of items to sort (in sorting applications), number of nodes (vertices) or arcs (edges) in graph algorithms, number of picture elements (pixels) in image processing, length of a character string in text processing, and so on.

The number of elementary operations taken by a particular algorithm, or its running time. We assume it is a function f(n) of the input data size n. The function depends on the elementary operations chosen to build the algorithm.

Algorithms are analyzed under the following assumption: if the running time of an algorithm as a function of n differs only by a constant factor from the running time for another algorithm, then the two algorithms have essentially the same time complexity. Functions that measure running time, T(n), have nonnegative values
because time is nonnegative, T(n) ≥ 0. The integer argument n (data size) is also nonnegative.

Definition 1 (Big Oh)

Big Oh Rank Meaning
Big Oh Rank Meaning

Let f(n) and g(n) be nonnegative-valued functions defined on nonnegative integers n. Then g(n)is O(f(n)) (read “g(n)is Big Oh of f(n)”) iff there exists a positive real constant c and a positive integer n0 such that g(n) ≤ c f(n) for all n > n0.

Note. We use the notation “iff ” as an abbreviation of “if and only if”.

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QPR – Three Steps Anyone Can Take to Save a Life

What is QPR?

QPR logo
QPR

QPR stands for Question, Persuade and Refer — three simple steps anyone can learn to help save a life from suicide.

Our Mission

To save lives and reduce suicidal behaviors by providing innovative, practical and proven suicide prevention training. We believe that quality education empowers all people, regardless of their background, to make a positive difference in the life of someone they know.

What does QPR mean?

QPR stands for Question, Persuade, and Refer — the 3 simple steps anyone can learn to help save a life from suicide.

Just as people trained in CPR and the Heimlich Maneuver help save thousands of lives each year, people trained in QPR learn how to recognize the warning signs of a suicide crisis and how to question, persuade, and refer someone to help. Each year thousands of Americans, like you, are saying “Yes” to saving the life of a friend, colleague, sibling, or neighbor.

QPR can be learned in our Gatekeeper course in as little as one hour.

What is a Gatekeeper?

According to the Surgeon General’s National Strategy for Suicide Prevention (2001), a gatekeeper is someone in a position to recognize a crisis and the warning signs that someone may be contemplating suicide.

Gatekeepers can be anyone, but include parents, friends, neighbors, teachers, ministers, doctors, nurses, office supervisors, squad leaders, foremen, police officers, advisors, caseworkers, firefighters, and many others who are strategically positioned to recognize and refer someone at risk of suicide.

Read more-Partial Source: https://qprinstitute.com/about-qpr

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So Long Mr. Chumps

The Three Stooges Columbia Pictures

The Three Stooges 1941

The stooges are street cleaners who find some valuable bonds and return them to their owner. The man is so grateful that he offers them a big reward if they can find an honest man with executive ability. Their search leads them to a woman who’s fiancée is honest, but he’s in jail. The boys decide to commit a crime so they can go behind bars to find him. In prison the boys locate the man and help him escape, only to find out that their benefactor is a con man and on the way himself to the slammer.—Mitch Shapiro <mshapiro@a.crl.com>

So Long Mr Chumps- 1941 The Three Stooges
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Knock Three Times – Tony Orlando and Dawn

Tony Orlando and Dawn

Tony Orlando and Dawn was a pop trio that in the 1970s that had 15 Top 40 hits, including one of the best-selling singles of all time.

The group had the No. 1 hits “Candida,” “Knock Three Times,” “He Don’t Love You (Like I Love You)” and “Tie a Yellow Ribbon Round the Ole Oak Tree”. “Tie a Yellow Ribbon Round the Ole Oak Tree,” released in 1973, is among the 75 best-selling songs of all time, with more than 6 million copies sold.

Knock Three Times – Tony Orlando and Dawn

Lyrics

Hey girl what ya doin' down there
Dancin' alone every night while I live right above you
I can hear your music playin'
I can feel your body swayin'
One floor below me you don't even know me
I love you
Oh my darling
Knock three times on the ceiling if you want me
Twice on the pipe if the answer is no
Oh my sweetness
Means you'll meet me in the hallway
Twice on the pipe means you ain't gonna show
If you look out your window tonight
Pull in the string with the note that's attached to my heart
Read how many times I saw you
How in my silence I adored you
Only in my dreams did that wall between us come apart
Oh my darling
Knock three times on the ceiling if you want me
Twice on the pipe if the answer is no
Oh my sweetness
Means you'll meet me in the hallway
Twice on the pipe means you ain't gonna show
I can hear your music playin'
I can feel your body swayin'
One floor below me you don't even know me
I love you
Oh my darling
Knock three times on the ceiling if you want me
Twice on the pipe if the answer is no
Oh my sweetness
Means you'll meet me in the hallway
Twice on the pipe means you ain't gonna show
Source: LyricFind
Songwriters: Larry Brown / Larry Russell Brown / Irwin Levine
Knock Three Times lyrics © Sony/ATV Music Publishing LLC, Spirit Music Group, BMG Rights Management
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NPK Ratio

flower garden

The N-P-K ratio is the percentage by volume of nitrogen (chemical symbol N), phosphorus (P), and potassium (K) in fertilizer. A 16-16-16 fertilizer, for example, contains 16% nitrogen, 16% phosphorus, and 16% potassium.

NPK ratio
NPK ratio

How is NPK Calculated?

To calculate the pounds of nitrogen in a bag of fertilizer, multiply the weight of the bag by the percent nitrogen (this is the first number in the N-P-K designation on the front of the bag). Then divide the pounds of nitrogen by the area the bag states it will cover to get the pounds of nitrogen per 1,000 sq. ft.

Roles of NPK

The first number of the ratio indicates the amount of nitrogen in the fertilizer. Nitrogen serves a few different roles but its primary benefit to grass is to help produce lush, green leaves. The second element is phosphorus, which is focused on more of the downward growth and fuels important developments such as root growth. The final nutrient represented in the ratio is potassium. This particular nutrient focuses more on resistance. If you already have an established lawn that’s starting to suffer from stress or diseases then the application of potassium is crucial to the health of the grass.

n-p-k
n-p-k

What’s the Best Ratio?

The NPK ratio represents is the percentage of nitrogen (N), phosphorus (P), and potassium (K) in the fertilizer. So how do you what’s best for what ratio? Here are some basic rules to follow. If you are starting a new lawn then get lawn fertilizer that has a higher percentage of phosphorus and potassium. At this stage, it’s important to focus on root development and disease resistance.

If you are installing a new layer of sod then apply a similar ratio to what you would use for new lawns. Although new sod does have established grass, the roots themselves have been shaved off so it is vital to up the amount of phosphorus in the soil for root development purposes.

Finally, if you are well into the gardening season and have an established lawn then focus on using a fertilizer that has a higher composition of nitrogen. Before Using Lawn Fertilizer perform a test to determine the amount of nutrients that already exist in the soil. This can be done on your own through the use of NPK soil test kit.

Partial Source: http://www.jgilorganic.com/npk-lawn-care/

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Sleeping At Last – “Three” (Official Lyric Video)

Sleeping At Last-Three-Official Lyric Video thumbnail

Published on Nov 23, 2018

“Three” is from Sleeping At Last’s “Atlas: Year Two” project.

Atlas: Three 
Maybe I’ve done enough
And your golden child grew up
Maybe this trophy isn’t real love
And with or without it I’m good enough

Maybe I’ve done enough
Finally catching up
For the first time I see an image of my brokenness
Utterly worthy of love

Maybe I’ve done enough

And I finally see myself
Through the eyes of no one else
It’s so exhausting on this silver screen
Where I play the role of anyone but me

And I finally see myself
Find more lyrics at ※ Mojim.com
Unabridged and overwhelmed
A mess of a story I’m ashamed to tell
But I’m slowly learning how to break this spell

And I finally see myself

Now I only want what’s real
To let my heart feel what it feels
Gold, silver, or bronze hold no value here
Where work and rest are equally revered

I only want what’s real
I set aside the highlight reel
And leave my greatest failures on display with an asterisk
Worthy of love anyway

Sleeping at Last’s Three
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Pascal’s Triangle

Relation between-Pascals triangle and fibonacci series

Pascal, Blaise (1623-1662)
Pascal, Blaise (1623-1662)

Pascal’s Triangle was originally developed by the ancient Chinese, but Blaise Pascal was the first person to discover special patterns contained inside the triangle. They teach his ideas in various schools online in math courses. You probably also heard of this guy from your high school math teacher.

Triangular numbers appear in Pascal’s Triangle. In fact, the 3rd diagonal of Pascal’s Triangle gives all triangular numbers as shown below:

 

1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
1 5 10 10 5 1
1 6 15 20 15 6 1
1 7 21 35 35 21 7 1
1 8 28 56 70 56 28 8 1
1 9 36 84 126 126 84 36 9 1

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Three ways to insert CSS – cascading style sheets

cascading style sheets

CSS How To…


When a browser reads a style sheet, it will format the HTML document according to the information in the style sheet.

working with CSS
working with CSS

Three Ways to Insert CSS

There are three ways of inserting a style sheet:

  • External style sheet
  • Internal style sheet
  • Inline style

External Style Sheet

With an external style sheet, you can change the look of an entire website by changing just one file!

Each page must include a reference to the external style sheet file inside the <link> element. The <link> element goes inside the <head> section:

Example

<head>
<link rel="stylesheet" type="text/css" href="mystyle.css">
</head>
Try it Yourself »

An external style sheet can be written in any text editor. The file should not contain any html tags. The style sheet file must be saved with a .css extension.

Here is how the “mystyle.css” looks:

body {
  background-color: lightblue;
}

h1 {
  color: navy;
  margin-left: 20px;
}

Note: Do not add a space between the property value and the unit (such as margin-left: 20 px;). The correct way is: margin-left: 20px;


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Content Delivery Network (CDN)

A content delivery network or content distribution network (CDN) is a geographically distributed network of proxy servers and their data centers. The goal is to provide high availability and high performance by distributing the service spatially relative to end-users. CDNs serve a large portion of the Internet content today, including web objects (text, graphics and scripts), downloadable objects (media files, software, documents), applications (e-commerce, portals), live streaming media, on-demand streaming media, and social media sites.

Global content delivery network
Global content delivery network

Google Hosted Libraries

The Google Hosted Libraries is a stable, reliable, high-speed, globally available content distribution network for the most popular, open-source JavaScript libraries.

Google works directly with the key stakeholders for each library effort and accepts the latest versions as they are released.

Libraries

To load a hosted library, copy and paste the HTML snippet for that library (shown below) in your web page. For instance, to load jQuery, embed the 

<script src=”https://ajax.googleapis.com/ajax/libs/jquery/3.4.0/jquery.min.js“></script>

snippet in your web page.

We recommend that you load libraries from the CDN via HTTPS, even if your own website only uses HTTP. Nowadays, performance is fast, and caching works just the same. The CDN’s files are served with CORSand Timing-Allow headers and allowed to be cached for 1 year.

Global content delivery network
Global content delivery network

Best CDN Providers To Speed Up A Website

  • Cloudflare. Cloudflare is a highly reliable CDN service provider for protecting your website and boosting its performance even under Free plans. … 
  • MaxCDN. … 
  • Cachefly. … 
  • Rackspace. … 
  • Key CDN. … 
  • Akamai. … 
  • Amazon CloudFront. … 
  • jsDelivr.