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Saturday, October 18, 2014

Order of Magnitude

Orders of magnitude are used to make approximate comparisons. If numbers differ by 1 order of magnitude, x is about ten times different in quantity than y. If values differ by 2 orders of magnitude, they differ by a factor of about 100. Two numbers of the same order of magnitude have roughly the same scale: the larger value is less than ten times the smaller value.

Thursday, August 7, 2014

Snellen chart

Snellen chart

the standard eye exam chart

Esoteric term -2

1. Lemniscate

the infinity symbol

2. Pandiculation

stretching when tired or when waking up

3. Tittle

the dot over i or j



Few esoteric terms -1




1. Paresthesia

the prickly feeling when your limb “falls asleep”

2. Grawlix

a series of symbols commonly used in comics or cartoons to represent curse words


3. Nibling

the gender-neutral term for nieces or nephews

4. Aglet

the tag covering the ends of a shoelace

5. Philtrum


the vertical groove on the median line of the upper lip





Friday, August 1, 2014

Sphinx Riddle

The riddle was, "What creature walks on all fours in the morning, two legs after noon, and with three legs in the evening?"

Oedipus gave her the answer of Humans, as they crawl on all fours when first born, walk upright through midlife, then resort to the help of a cane when older.

Golden Ratio

In mathematics, two quantities are in the golden ratio if their ratio is the same as the ratio of their sum to the larger of the two quantities. The figure on the right illustrates the geometric relationship. Expressed algebraically, for quantities a and b with a > b > 0,
 \frac{a+b}{a} = \frac{a}{b} \ \stackrel{\text{def}}{=}\ \varphi,
where the Greek letter phi (φ) represents the golden ratio. Its value is:
\varphi = \frac{1+\sqrt{5}}{2} = 1.6180339887\ldots.

Monday, July 21, 2014

First Genetically Modified Food

The first genetically-engineered food to become commercially available was a tomato. TheFlavr Savr, created by biotechnology company Calgene, was FDA-approved in 1994. It was designed to prevent rotting by slowing the ripening process. However, they weren't economically viable and the tomatoes were off the shelves by 1997.

Wednesday, July 16, 2014

Nokia - origin of the name

Nokia began its existence far from the world of mobile technology—as a paper mill. The nascent company’s second groundwood pulp mill was built near the town of Nokia (about 100 miles northwest of Helsinki), which the company decided to adopt as its name when it became a public share company in 1871.

Bacn

Bacn (pronounced like bacon) is email that has been subscribed to and is therefore solicited (unlike email spam is), but is often not read by the recipient for a long period of time, if at all. Bacn has been described as "email you want but not right now."[1][2]
Bacn differs from spam in that the recipient has signed up to receive it. Bacn is also not necessarily sent in bulk. Some examples of common bacn messages are news alerts, periodic messages from e-merchants from whom one has made previous purchases, messages from social networking sites, and wiki watch lists.[3]

Name of the Android robot logo

Bugdroid is the name of the robotic logo of Android

Mercedes-Benz logo - it's meaning

Mercedes-Benz
The rounded logo of Mercedes-Benz with a three-cornered star in between, has three white spaces which represent land, sky and sea. The meaning of this is that Mercedes-Benz is dominant over them all.

Saturday, July 5, 2014

Sisyphean Task

Sisyphus - (Greek legend) a king in ancient Greece whooffended Zeus and whose punishment was to roll a huge boulderto the top of a steep hill; each time the boulder neared the top itrolled back down and Sisyphus was forced to start again

Sunday, June 29, 2014

Pepsi - origin of the name

Like most early sodas, Pepsi was created by a pharmacist experimenting with new tonics to offer at his pharmacy. Created by North Carolinian Caleb Bradham, the fizzy drink was intended to aid in digestion and boost energy.
To that end Bradham mixed in pepsin (a digestive enzyme found primarily in the stomach that breaks down food proteins into peptides) and kola nuts (a caffeine and color rich nut that gave early colas their color and kick).
The brand’s name Pepsi-Cola was derived from this combination and, even when shortened to just Pepsi years later, still maintains a nod to its digestive fortifying origins.

Monday, June 9, 2014

Friday, May 30, 2014

Who invented Brainstorming

Advertising executive Alex Faickney Osborn, “the father of brainstorming”, invented the term back in 1941. He described brainstorming as "a conference technique by which a group attempts to find a solution for a specific problem by amassing all the ideas spontaneously by its members."

Sunday, May 11, 2014

Bell curve

Ravindranath Tagore

Rabindranath Tagore is the only known person to have written the national anthems for two different countries. He wrote Jana Gana Mana, the national anthem for India, and Amar Sonar Bangla, the national anthem for Bangladesh.

Saturday, May 3, 2014

Onions -- Why They Make Us Cry

Onions -- Why They Make Us Cry 

Just about anyone who has ever cooked a hot dinner has experienced this particular food side effect -- onion tears. They're so upsetting! But what actually causes them? Turns out that when you cut into an onion a volatile sulfur compound called Propanethiol-S-oxide is released. This gas reacts with water in your eyes -- and forms Sulfuric Acid. Ouch! The burn causes your eyes to produce more tears to wash the acid away. But there are a few things you can try to prevent this problem:
  • Wear goggles
  • Chop near a fan or oven vent
  • Refrigerate the onion prior to chopping
  • Chop under running water
- See more at: http://www.fitnessfrenzie.com/gallery/7057/weird-side-effects-of-food/75449#sthash.XjcArTcT.dpuf

Sunday, April 6, 2014

Amdahl law

Amdahl's Law, which, roughly stated, holds that any performance gains that come from breaking a computer task into parallel operations is offset by the additional overhead incurred by managing multiple threads

Saturday, March 22, 2014

Streisand effect

The Streisand effect is the phenomenon whereby an attempt to hide, remove, or censor a piece of information has the unintended consequence of publicizing the information more widely, usually facilitated by the Internet.
It is named after American entertainer Barbra Streisand, whose attempt in 2003 to suppress photographs of her residence in Malibu, California, inadvertently generated further publicity. Similar attempts have been made, for example, in cease-and-desist letters, to suppressnumbers, files and websites. Instead of being suppressed, the information receives extensive publicity and media extensions such as videos and spoof songs, often being widely mirroredacross the Internet or distributed on file-sharing networks.[1][2]

Sunday, March 16, 2014

Eisenhower method - to decide on time management

BASE Jumping

Base jumping, an acronym for buildings, antennae, spans (bridges) and earth (cliffs), the four types of fixed object from which participants parachute, is one of the most dangerous sports in the world, claiming more than 170 lives in the past 30 years. According to one survey, one in every 20 base jumpers dies practising the sport.

Brain - it's four parts & it's effect in decision making

  • The left brain, which is more analytical and process focused
  • The right brain, which is more creative and intuitive
  • The emotional brain--limbic system--which is how we make dumb decisions, like judging someone as friend or foe within seconds of meeting them
  • The decision maker--prefrontal cortex--which takes inputs from these other three regions and makes some type of well-balanced decision, at least in theory


  • Read more: http://www.inc.com/lou-adler/hiring-guide-whole-brain-recruiting.html#ixzz2w86wM07M

    Saturday, March 1, 2014

    Google search tips

    Prisoners dilemma

    The prisoner's dilemma (or prisoners' dilemma) is a canonical example of a game analyzed in game theory that shows why two individuals might not cooperate, even if it appears that it is in their best interests to do so. It was originally framed by Merrill Flood andMelvin Dresher working at RAND in 1950. Albert W. Tucker formalized the game with prison sentence rewards and gave it the name "prisoner's dilemma" (Poundstone, 1992), presenting it as follows:
    Two members of a criminal gang are arrested and imprisoned. Each prisoner is in solitary confinement with no means of speaking to or exchanging messages with the other. The police admit they don't have enough evidence to convict the pair on the principal charge. They plan to sentence both to a year in prison on a lesser charge. Simultaneously, the police offer each prisoner a Faustian bargain. Each prisoner is given the opportunity either to betray the other, by testifying that the other committed the crime, or to cooperate with the other by remaining silent. Here's how it goes:
    • If A and B both betray the other, each of them serves 2 years in prison
    • If A betrays B but B remains silent, A will be set free and B will serve 3 years in prison (and vice versa)
    • If A and B both remain silent, both of them will only serve 1 year in prison (on the lesser charge)

    Saturday, February 8, 2014

    MAYDAY - origin of this word

    The Mayday callsign was originated in 1923 by Frederick Stanley Mockford (1897-1962) [2]. Whilst senior radio officer at Croydon Airport in London, Mockford was asked to think of a word that would indicate distress and would easily be understood by all pilots and ground staff in an emergency. Since much of the traffic at the time was between Croydon and Le Bourget Airport in Paris, he proposed the word "Mayday" from the French m'aider.
    Mayday

    This distress call is a phonetic representation of the French m'aider, literally help me

    3C mantra for young leaders

    John Baldoni, recently named as one of the top 10 leadership gurus in the world , One nugget John shares for young leaders is how to present oneself confidently. He uses a mnemonic device – 3 C’s
    • Competence: ability to do the job
    • Credibility: others believe you can do the job
    • Confidence: you have the faith you can do the job and others believe in you. You have a sense of purpose.

    Wednesday, February 5, 2014

    Microsoft's new CEO Satya Nadella's letter to employees Feb 2014

    Following is the text of Microsoft's new CEO Satya Nadella's letter to employees.

    Today is a very humbling day for me. It reminds me of my very first day at Microsoft, 22 years ago. Like you, I had a choice about where to come to work. I came here because I believed Microsoftwas the best company in the world. I saw then how clearly we empower people to do magical things with our creations and ultimately make the world a better place. I knew there was no better company to join if I wanted to make a difference. This is the very same inspiration that continues to drive me today.

    It is an incredible honor for me to lead and serve this great company of ours. Steve and Bill have taken it from an idea to one of the greatest and most universally admired companies in the world. I've been fortunate to work closely with both Bill and Steve in my different roles at Microsoft, and as I step in as CEO, I've asked Bill to devote additional time to the company, focused on technology and products. I'm also looking forward to working with John Thompson as our new Chairman of the Board.

    While we have seen great success, we are hungry to do more. Our industry does not respect tradition — it only respects innovation. This is a critical time for the industry and for Microsoft. Make no mistake, we are headed for greater places — as technology evolves and we evolve with and ahead of it. Our job is to ensure that Microsoft thrives in a mobile and cloud-first world.

    As we start a new phase of our journey together, I wanted to share some background on myself and what inspires and motivates me.

    Who am I?

    I am 46. I've been married for 22 years and we have 3 kids. And like anyone else, a lot of what I do and how I think has been shaped by my family and my overall life experiences. Many who know me say I am also defined by my curiosity and thirst for learning. I buy more books than I can finish. I sign up for more online courses than I can complete. I fundamentally believe that if you are not learning new things, you stop doing great and useful things. So family, curiosity and hunger for knowledge all define me.

    Why am I here?

    I am here for the same reason I think most people join Microsoft — to change the world through technology that empowers people to do amazing things. I know it can sound hyperbolic — and yet it's true. We have done it, we're doing it today, and we are the team that will do it again.

    I believe over the next decade computing will become even more ubiquitous and intelligence will become ambient. The coevolution of software and new hardware form factors will intermediate and digitize — many of the things we do and experience in business, life and our world. This will be made possible by an ever-growing network of connected devices, incredible computing capacity from the cloud, insights from big data, and intelligence from machine learning.

    This is a software-powered world.

    It will better connect us to our friends and families and help us see, express, and share our world in ways never before possible. It will enable businesses to engage customers in more meaningful ways.

    I am here because we have unparalleled capability to make an impact.

    Why are we here?

    In our early history, our mission was about the PC on every desk and home, a goal we have mostly achieved in the developed world. Today we're focused on a broader range of devices. While the deal is not yet complete, we will welcome to our family Nokia devices and services and the new mobile capabilities they bring us.

    As we look forward, we must zero in on what Microsoft can uniquely contribute to the world. The opportunity ahead will require us to reimagine a lot of what we have done in the past for a mobile and cloud-first world, and do new things.

    We are the only ones who can harness the power of software and deliver it through devices and services that truly empower every individual and every organization. We are the only company with history and continued focus in building platforms and ecosystems that create broad opportunity.

    Qi Lu captured it well in a recent meeting when he said that Microsoft uniquely empowers people to "do more." This doesn't mean that we need to do more things, but that the work we do empowers the world to do more of what they care about — get stuff done, have fun, communicate and accomplish great things. This is the core of who we are, and driving this core value in all that we do — be it the cloud or device experiences — is why we are here.

    What do we do next?

    To paraphrase a quote from Oscar Wilde — we need to believe in the impossible and remove the improbable.

    This starts with clarity of purpose and sense of mission that will lead us to imagine the impossible and deliver it. We need to prioritize innovation that is centered on our core value of empowering users and organizations to "do more." We have picked a set of high-value activities as part of our One Microsoft strategy. And with every service and device launch going forward we need to bring more innovation to bear around these scenarios.

    Next, every one of us needs to do our best work, lead and help drive cultural change. We sometimes underestimate what we each can do to make things happen and overestimate what others need to do to move us forward. We must change this.

    Finally, I truly believe that each of us must find meaning in our work. The best work happens when you know that it's not just work, but something that will improve other people's lives. This is the opportunity that drives each of us at this company.

    Many companies aspire to change the world. But very few have all the elements required: talent, resources, and perseverance. Microsoft has proven that it has all three in abundance. And as the new CEO, I can't ask for a better foundation.

    Let's build on this foundation together.

    Satya

    Saturday, February 1, 2014

    eccedentesiast

    A person who hides their pain behind a smile is called an “eccedentesiast.”

    Sunday, January 26, 2014

    Negotiation - Origin of the word

    "Negotiate" comes from the Latin negotiatus, which is the past participle of negotiari, and means to carry on business. This original meaning is critical to understand because the goal of negotiating is to continue doing business by conferring with another to arrive at an agreement.

    Friday, January 17, 2014

    Ricin

    Ricin is a naturally occurring protein found in the castor oil plant that is highly toxic. It is 6,000 times more poisonous than cyanide.