Know : List of Letters used in Science and Mathematics

Note: This list can be expanded further.greekAlphabet

Å — angstrom

Aampere, area, a blood type, a spectral type, vector potential, Work

BB meson, a blood type, boron, luminance, magnetic field, a spectral type

Ccarbon, degrees Celsius, set of complex numbers, coulomb, molar heat capacity, the C programming language, specific heat capacity, Cunningham correction factor

Ddeuterium, differential operator, electric displacement, D meson

Eelectric field, energy, SI prefix exa–, expected value

F — degrees Fahrenheit, farad, fluorine, force, Helmholtz free energy, a spectral type

GEinstein tensor, SI prefix giga–, Gibbs free energy, gravitational constant, Green’s function, Momentum, a Spectral type

Hauxiliary magnetic field, enthalpy, Hamiltonian, Hankel function, Heaviside step function, henry, Higgs boson, homology group, Hubble constant, hydrogen, set of quaternions, hat matrix

Icurrent, iodine, impulse, luminous intensity, moment of inertia

Jangular momentum, Bessel function of the first kind, current, joule

Kkaon, kelvin, potassium, sectional curvature, a spectral type

Langular momentum, inductance, Lagrangian, litre, a spectral type

Mmagnetization, mass, SI prefix mega–, a spectral type, torque

NAvogadro’s number, Bessel function of the second kind, set of natural numbers, newton, nitrogen, normal distribution, normal vector

Obig O notation, a blood type, oxygen, a spectral type

PLegendre polynomial, luminous flux, phosphorus, polarization, power, pressure, probability, projection

Qelectric charge, quantity of heat, set of rational numbers, flow rate

Rcurvature tensor, electrical resistance, radius, set of real numbers

Sarea, entropy, siemens, sphere, spin operator, sulfur, symmetric group

T — a spectral type, temperature, tesla, tritium

Upotential energy, uranium, unitary operator

Vpotential energy, vanadium, volt, voltage, volume

Wenergy, Lambert’s W function, tungsten, watt, W boson, Work, work function, Wiener process

Xrandom variable, abscissa

YBessel function of the second kind, SI prefix yotta, yttrium, ordinate, luminance

Zatomic number, impedance, set of integers, partition function (statistical mechanics), partition function (quantum field theory), Z boson, SI prefix zetta–, altitude


aSI prefix atto–, acceleration, reflectance

bBottom quark

cSI prefix centi–, Charm quark, speed of light, speed of sound

dSI prefix deci–, distance, Down quark, infinitesimal increment, differential operator

eNapier’s constant, electron, positron, electric charge

fSI prefix femto–, frequency

ggram, gravitational acceleration, gravitational field, distance metric of spacetime

hheight, hour, Planck’s constant, spherical Hankel function

iimaginary complex unit, imaginary quaternion unit, unit vector, current, row index

jelectric current and current density, radiant intensity, spherical Bessel function of the first kind, unit vector, column index, imaginary complex unit, imaginary quaternion unit

kBoltzmann constant, imaginary quaternion unit, SI prefix kilo–, wave vector, unit vector

llength, litre, mean free path

mmagnitude, mass, SI prefix milli–, metre, minute

nSI prefix nano–, neutron, refractive index, spherical Bessel function of the second kind

osmall o notation

pelectric dipole moment, momentum, SI prefix pico-, proton, point of a space

qelectric charge, generalized coordinate

rposition (vector), radial polar coordinate, radius

ssecond, Strange quark

tperiod, time, Top quark

uUp quark

vvelocity

wvelocity

xabscissa, real-valued argument, variable to be determined, vector,

yordinate, SI prefix yocto-, pixel row index

zcomplex variable, altitude, SI prefix zepto-

Greek

ΒBeta function

ΓAngular momentum, Gamma function, Christoffel symbols

Δ — A macroscopic change in the value of a variable, Laplace operator, Delta particle

ΘHeaviside step function

ΛIwasawa algebra, Lorentz transformation, Lambda Hyperon

Ξ — Cascade Hyperon

ΠProduct

ΣSum, Surface, Sigma Hyperon

Φ — Alternative symbol for Quantum mechanical wavefunction

ΨQuantum mechanical wavefunction

ΩChaitin’s constant, Ohm, Solid angle, Omega Hyperon


αAlpha particle, Fine structure constant, Angular acceleration

βBeta particle, Inverse temperature

γEuler-Mascheroni constant, Gamma-ray (Photon), Photon, Relativistic gamma factor

δDirac delta function, Infinitesimal quantity, Kronecker delta

εInfinitesimal quantity, Permittivity

ζDamping Ratio, Riemann zeta function

ηDistance metric of flat spacetime, Efficiency, Dynamic viscosity, η-meson

θAngle, Angular polar coordinate, Temperature

ι

κGravitational constant

λHalf-life, Lagrangian multiplicator, Lambda expression, Thermal conductivity, Wavelength

μAbsorption coefficient, Chemical potential, Magnetic dipole moment, Mean, SI prefix micro–, Micron, Muon, Permeability, Reduced mass

νFrequency, Kinematic viscosity, Neutrino

ξRiemann Xi function

ο

πFundamental group, Conjugate momentum, Homotopy groups, Number π, Pion, Prime-counting function, Projection

ρDensity, Electrical resistivity, Radial polar coordinate, ρ-meson

σCross section, Electrical conductivity, Spin, Standard deviation, Stefan-Boltzmann constant

τTau lepton, Torque, Shear stress, Time constant

υ

φAngular polar coordinate, Electric potential, Euler’s totient function, Golden mean, Phase, Potential energy

χElectric susceptibility

ψQuantum mechanical wavefunction, J/ψ particle

ωFrequency (in radian/s), angular velocity

ШTate-Shafarevich group (Ш(G))

Cardinality of infinite sets

בCardinality of infinite sets

Partial derivative

Del operator, Gradient, Divergence, Curl

Know : Grow and Shrink inside an Ames Room

Do you know how the normal sized humans transformed as Hobbits in the movie The Lord Of The Rings? You too can shrink and grow back as they did 🙂 Because they used several Ames room sets in Shire sequences to make the heights of the diminutively-sized hobbits correct when standing next to the taller Gandalf.

What is an Ames Room? Well before getting into the detailing watch this video by The Royal Institution

A diagram of the true and apparent position of a person in an Ames room, and the shape of that room

An Ames room is a distorted room that is used to create an optical illusion. Probably influenced by the writings of Hermann Helmholtz, it was invented by American ophthalmologist Adelbert Ames, Jr. in 1934, and constructed in the following year.

An Ames room is constructed so that from the front it appears to be an ordinary cubic-shaped room, with a back wall and two side walls parallel to each other and perpendicular to the horizontally level floor and ceiling. However, this is a trick of perspective and the true shape of the room is trapezoidal: the walls are slanted and the ceiling and floor are at an incline, and the right corner is much closer to the front-positioned observer than the left corner (or vice versa). (See overhead view diagram to the right)

As a result of the optical illusion, a person standing in one corner appears to the observer to be a giant, while a person standing in the other corner appears to be a dwarf. The illusion is so convincing that a person walking back and forth from the left corner to the right corner appears to grow or shrink.

Studies have shown that the illusion can be created without using walls and a ceiling; it is sufficient to create an apparent horizon (which in reality will not be horizontal) against an appropriate background, and the eye relies on the apparent relative height of an object above that horizon.


Courtesy : The Royal Institution via YouTube, Wikipedia

Know : Triangle, Square, Pentagon… How long it goes?

Triangle Δ (3), Square (4), Pentagon (5), Hexagon (6), Heptagon(7), Octagon(8)… How long it can go?

A Megagon is a shape with 1,000,000 equal sides.  Even if drawn at the size of the Earth, a regular megagon would be very difficult to distinguish from a circle.

regular polygon is a polygon that is equiangular (all angles are equal in measure) and equilateral (all sides have the same length). 

How many you know before? How to draw a perfect polygon with 10 sides? Know more here… (To see how to draw them? Scroll down the table)

Number of sides Name of polygon Picture
n Regular n-gon
3 Equilateral Triangle  Triangle.Equilateral.svg
4 Square  Regular polygon 4 annotated.svg
5 Regular Pentagon  Regular polygon 5 annotated.svg
6 Regular Hexagon  Regular polygon 6 annotated.svg
7 Regular Heptagon  Regular polygon 7 annotated.svg
8 Regular Octagon  Regular polygon 8 annotated.svg
9 Regular Nonagon  Regular polygon 9 annotated.svg
10 Regular Decagon Regular polygon 10 annotated.svg 
11 Regular Hendecagon  Regular polygon 11 annotated.svg
12 Regular Dodecagon  Regular polygon 12 annotated.svg
13 Regular Tridecagon  Regular polygon 13 annotated.svg
14 Regular Tetradecagon Regular polygon 14 annotated.svg 
15 Regular Pentadecagon  Regular polygon 15 annotated.svg
16 Regular Hexadecagon  Regular polygon 16 annotated.svg
17 Regular Heptadecagon Regular polygon 17 annotated.svg 
18 Regular Octadecagon  Regular polygon 18 annotated.svg
19 Regular Enneadecagon Regular polygon 19 annotated.svg 
20 Regular Icosagon  Regular polygon 20 annotated.svg
100 Regular Hectagon Internal Angle 176.40°External Angle 3.60°
1000 Regular Chiliagon  Chiliagon.pngA whole regular chiliagon is not visually discernible from a circle. The lower section is a portion of a regular chiliagon, 200 times as large as the smaller one, with the vertices highlighted.Internal Angle = 179.64°
10000 Regular Myriagon  Internal Angle = 179.96°
1,000,000 Regular Megagon  Circle - black simple.svgEven if drawn at the size of the Earth, a regular megagon would be very difficult to distinguish from a circle.Internal Angle = 179.99964°

Geometric Construction of Regular Polygons

Equilateral Triangle Inscribed in a Circle.gif

Equilateral triangle


 

File:Straight Square Inscribed in a Circle 240px.gif

Square


 

File:Regular Pentagon Inscribed in a Circle 240px.gif

Pentagon


 

Hexagon


 

Approximated Heptagon Inscribed in a Circle.gif

Heptagon


 

File:Regular Octagon Inscribed in a Circle.gif

Octagon


 

Approximated Nonagon Inscribed in a Circle.gif

Nonagon


 

Construction of a regular decagon

Decagon


 

Costruzione approssimata dell'endecagono regolare

Hendecagon


 

Regular Dodecagon Inscribed in a Circle.gif

Dodecagon


 

File:Approximated Tridecagon Inscribed in a Circle.gif

Tridecagon


 

Approximated Tetradecagon Inscribed in a Circle.gif

Tetradecagon


 

Regular Pentadecagon Inscribed in a Circle.gif

Pentadecagon


 

Regular Hexadecagon Inscribed in a Circle.gif

Hexadecagon


 

Regular Heptadecagon Using Carlyle Circle.gif

Heptadecagon


 

Octadecagon


 

Enneadecagon


 

Regular Icosagon Inscribed in a Circle.gif

Icosagon


Courtesy : Wikipedia ( All copyrights of the above images and animations belongs to the respective owners as mentioned in Wikipedia, shared here for educational purposes only)

‘Snoopy’ Digs the Archive for You: May 2013

Snoopy @ Work :)

Snoopy @ Work 🙂

Visiting our blog now? Well, you could have missed a few interesting posts. Here we bring you “Snoopy” he will dig the archives and bring you the complete list of old posts in one place. Check out now what Snoopy found from May 2013.

 
job
One question poll : Know what others say: Love or Hate their Job?

300 3
5 Insights from the Movie 300 : A Recommended Reading

“Being happy doesn’t mean that everything is perfect. It means you’ve decided to look beyond the imperfections.”
Just one great Quote : Being HaPpY

jumping_frog cartoon
Understand Arguments : The Frog Story

ch5
Slums Of Chennai : Needs Action

arrest
Relax Off Serious Philosophies 🙂 Nothing but fun : A Teacher Terrorist 🙂

man dog
A Funny Story of a Man and his Dog: Sure It Will Leave You Thinking

Dalailama
Must Read : Inspirational Speech : Dalai Lama : Education & Warm Heart

student deaf
Three Life Changing Words : Teacher who made the Difference

dad son
EcHo Of You

attitude choice
Attitude n’ Choices

dream
Dream Thieves : Go Go.. Keep Going..

Missing flight
The Missed Flight : Writer’s Digest Entry

bethankful
Be Thankful : Insights

ugly cat
Bet you stay off tears? Ugly, The Cat : Value of Compassion & Love

time bank
Insights : Time Bank

pearl necklace
Story of Jenny : The Real Pearl Necklace

Darkness needs Light
Picture Speaks : Darkness Needs Light, Money blocks Accessibility

ul
What exactly is “Propel Steps”?

mam111
10 Unusually beautiful friends (Part 1) : We humans have lot to learn

save me tiger1
SAVE TIGER : Pictures Speak

victim vs creator
Choose one : You wanna be Victim or Creator : Personality Insights

shill
Instant Personality Self Test : Your brain thinks mostly left / right / both?

train
Dont Miss it : Which direction the Train moves? It will as you wish.. Magical 🙂

Blind-girl-gets-to-class-XII-merit-list-tops-Humanities-group
Blind girl gets to class XII merit list, tops humanities group

career vs money
Snippet Thoughts: Error at Start: Career Decision

taxi
The Cab Ride I will Never Forget : Great moment in Life

watch
The Lost Watch

child-playing-in-water-fountain-michele-stoehr
Limpid Life

miguel claro
You will say WOW : Miguel Claro’s Astrophotographs

man-dogs-best-friend
Why Dogs live less than us? : This Deserve a read.

earth-day
Who is the Daddy? Earth or Homo-Sapiens?

poverty_20130311
There’s More fruit in Rich Man’s Shampoo than a Poor man’s Plate

daddy kiss
Box Full of Kisses : While reading you too realize having one Box 🙂

piggy
Never Miss to Read this : A Miracle costs $1.11 : True Story

cropped-logo-of-ps2.png
Appreciate Talent : Siddhartha Rahi & Summa Hussain : Young Student Scientists From Ghazipur, India.

cropped-logo-of-ps2.png
Appreciate Talents : Adithyha Jayakumar – A Musical Talent from South India

walk-through
An Interesting Personality test : Just 5 mins

Cart fill
Life is similar to filling our cart. We pay and enjoy for what we fill our carts with…

firefighter__kid
The Little Firefighter : Relish helping others : Must feel Story

Peace is Cheaper than War Love is Precious of all Weapons
Pic : Peace is Cheaper than War! Love is Precious of all Weapons!

finland_education
Impressive Quotes from Finland Teachers

7. DICENTRA
Top 10 Beautiful flowers in the world

push
Snippet Thoughts : Push

beggar-01
Snippet Thoughts : A Humane day

walk-through
Poster #3 : Is there a True Friend?

592891
Poster #2 : Join Hands if you are against Caste Discrimination

Poster #1 : A Good Child is a Sign of a Good Society…

The Good Bye Kiss

Lesson to a Disciple Painter : Easy to point; hard to correct.

Just 3 words : Explains So much

The Cookie Thief : Must Read One

The empty soap box : Keep it simple lesson for every organisation

Need Expert Opinion: What will happen if there are no limitations to export / import taxes (arbitrage benefits)?

Four Fingered Pianist : Hee Ah Lee

Jessica Cox – An Inspirational Woman

18 Rules of HaPpInEsS 🙂

Our Life is Our Choice: Always do your best

Window of Happiness : Must Read One

Ways to judge people, things and life : Four Seasons’ Insight

Beautiful Oil Paintings : Realistic Ones

One of the most inspired story : Boy and Butterfly

Very Small Story, But Great Insight : Purpose of Goal

Home of Millions : Earth : Have no space for our little Sparrows?

Four Apples and Understanding others

Inability is just a belief : Story of Elephants

Hold on your emotions : This may make you feel the importance of understanding

Old one but Evergreen story : True Love is Unique

“Paid in full with one glass of milk”

Difference : Optimist and Pessimist

Know Stats: List of countries by carbon dioxide emissions

Concert Freebies : Don’t miss to read 🙂

Funny Marriage of Princess : Cant stop laughing 🙂

Quotes from the Way of a Peaceful Warrior – Dan Millman

The Brick and the Jaguar : Listen to life

Reach and Touch Others’ life with Kindness : Story of Waldorf-Astoria Hotel

Appreciate Life : Story of a Blind Girl

A true story, happened in 1892 at Stanford University : Herbert Hoover & Paderewski

”How heavy is this glass of water?” : Stress is same as this

Snippet Thoughts : Mistakes Matters @ workplace

50 Amazing Facts about Animals : I

“A Love Letter at my 60″ Heart melting Story. Never miss to read it.

Guys Vs Cats : These funny pics will relax mind 🙂

Please spare a minute, we need your help not money!!!

GiveTogether.Hands_

Share anything you read, you liked, you want the world to know about. Ask anything you want to know about. 

“Education is Everything” – you might see this as our tag line, not just as words. We Propel Steps get all the inspiration from that strong belief. Through education, we can bring many positive changes. Wisdom, Humanity, Environmental issues, Fair use of Science, Good governance,Prevention of arts, Encouraging creativity… The list is big where your support is needed. 

We do not need money. Just your support and a few mins time whenever feasible for you. Help us to bring a change! Only You can make this reach millions of people.

forumWho can Educate and who can get Educated? Well, everyone of us has a Teacher and a Learner in us.

We are good at many things, skills that we possess naturally or developed over a period of time. When we share it with others, we become the provider of knowledge and help enabling others.

On the other end, every day we learn something new, get educated from some sources. 

Our areas of interest are wide. But Education is the common thing we find in everything we see in life. 

We believe Education is not just limited to, schools anymore, if we are determined to learn and share knowledge this modern world has plenty of opportunities.

We have made our Forum “Propel Steps” – here. Where you can share anything you want to share with the world. Ask anything you wish to know about. Not everyone is good at Googling to learn, also internet cannot self suffice. It’s all about knowledge/info reaching the right people who need them. We connect you with millions of school kids, students, teachers, professionals, activists, etc.

Share your links on our forum. Just a few clicks, you can share even anonymously. 

We have only one objective, education can be liberal and can be boundless.

We do not need money. Just your support and a few mins time whenever feasible for you. Help us to bring a change! We do not have millions of Dollars to to spend, but we have IDEAS and HOPE. Only You can make this reach millions of people.

Please do not forget to share this post.

Thanks and Regards

– Din

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Note: This is a non-profit initiative. You are welcome to ask more about our initiative, please contact me here dinesh@propelsteps.com

Find more about our objectives please refer to these articles

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