## Aviation 101 : Flight Dynamics

To most people, the sky is the limit. To those who love aviation, the sky is home.

## How to make diamond rings at Mach speed

These set of rings/disks that are formed in the exhaust plume are known as Shock Diamonds or Mach discs (and by many more names).

## ELI5: Gravitational Waves edition

The existence of gravitational waves has been confirmed. But you probably heard that already. In this post, we will break down this profound discovery into more understandable chunks.

## This material can heat to 2200 F, but it’s safe to hold in your bare hands

Designing an orbiter that is able to endure the brutal -250 F in the outer stretches of space, as well as the bewildering 3000 F during the reentry is a ridiculously challenging task.

## Hang on a second, Mr. Aristotle!

Time has this wonderful way of showing us what really matters. Such a pivotal role does this so called ‘Time’ play in our day to day life, but what is time and how does one measure it?

## Food-science Sunday : The geometry of a Pringle

Mathematics is not about equations, numbers, computation or algorithms: It is about Understanding! There are many ways to understand it – the one that this post is based on is real life visualization. The Pringle shape is what is known in mathematics / calculus as a hyperbolic paraboloid. Why are Pringles a hyperbolic paraboloid? The saddle shape allowed for easier

## Gyroscopic wired animals

Chickens, Cats, Owls and some more animals have this ability to keep their heads fixed on a spot, regardless of their orientation. They are gyroscopic wired.

## You can never truly kiss anyone!

I am sorry to break it to you, but you can never truly kiss anyone. But hey, It’s not your fault! This is a consequence of the fact that two atoms can never really touch each other.

## Why don’t rain drops kill you?

Pardon me for being melodramatic. Think about it, rain drops fall from thousands of feet in the air and yet we hardly twitch when one falls on us.This defies all logic, if you drop a penny from the top of a building and let it fall on you, we know that it hurts! Have the angels cast a magical spell

## Crown Shyness – Trees can shy away too!

Crown shyness is a phenomenon observed in some tree species, in which the crowns of fully stocked trees do not touch each other, forming a canopy with channel-like gaps.

## A Boy and his Atom

“A Boy and His Atom” is a 2012 stop-motion animated short film released on YouTube by IBM Research. The movie tells the story of a boy and a wayward atom who meet and become friends. It depicts a boy playing with an atom that takes various forms.

## How does an eraser work?

When you rub an eraser across a pencil mark, the abrasives in the eraser gently scratch the surface fibers of the paper to loosen the graphite particles.

## Rockets 101 – How to turn during flight

Outstanding control is what distinguishes a toy rocket from a real one.

## Remembering Edmond Halley!

November 8 – it is the birthday of the famous English astronomer, geophysicist, mathematician, meteorologist, and physicist who is best known for computing the orbit of the eponymous Halley’s Comet.

## Meteor strikes Thailand twice in 3 months

The first (seen in the first animation) took place on September 7 and the second one on the November 2. People though these were some planes crashing, but were later confirmed to be small meteor showers. Just so you know, this happens all the time in our atmosphere and there is nothing to be alarmed about. Albeit, legion of these

## The Marangoni Effect – an affair with surface tension

The Marangoni Effect says that fluid will want to flow from areas of lower surface tension to areas of higher surface tension. Soap has a lower surface tension than Water/ Milk. And as a result, when soap is placed on the surface of a fluid (as it is, in these animations), it wants to flow away to areas of higher

## Looking at the universe naked – an Ontological Awakening

It was Stephen Hawking who said:

We are just an advanced breed of monkeys on a minor planet of a very average star. But we can understand the universe. That’s what makes us special.

## Taming the sound from a shuttle using water

What purpose would a water tank have in the proximity of a space shuttle launch?

Well, believe it or not, it is used to suppress the acoustical energy (sound and rocket exhaust reflected from the flame trench and Mobile Launcher Platform ) during launch

## Only time will tell – A complex number tribute

I was in high school when the notion of complex numbers was fed into my vocabulary. None of it made sense! One of my friends remarked “Why on earth did they have to invent a new Number System? Uhh.. Mathematicians!!”. And as distressing as it was, we weren’t able to comprehend why!