X are basically user-created images from text while Y are codes meant to be read and transferred by computers then decoded into pre-defined images users can see.

By definition there can be an infinite number of X but the number of Y is limited.

X and Y ( no part points)

1

● X - Emoticons :P● Y – Emoji �

2

The picture on the next slide is a digital re-creation of something very iconic in the field of arts by Lithuanian photographer and architect Tado Cern.

Who/what is this a digital recreation of ?

Van Gogh : Self Potrait

3

When IBM's Watson was still in development stage, its head researcher and team fed the contents of this website into its AI as they felt that the formalization of informal language this site provided might be a great way for Watson to understand how real people communicate.

Watson though could not differentiate between polite language and profanity ( something this website is full of ) and this eventually led to all related data being erased from its memory.

What website ?

Urban Dictionary

4

The name of which neurological disorder derives from the Greek hemikrania meaning “halfskull” or “halfhead” ?

Migraine

.cat is a sponsored top-level domain that is intended to be used by institutions, companies and people belonging to a certain linguistic and cultural community. It domain as such is not territorial and can be used by the whole community irrespective of where they are based out of.

Which community does this domain cater to ?

5

Catalan speaking community

6A very small quantity of Americium-241 (AM-241) is a vital ingredient in <a device>.

Americium-241 emits alpha particles and low energy gamma rays. The alpha particles emitted by the Am-241 collide with the oxygen and nitrogen in air in the ionisation chamber to produce charged particles (ions). A low-level electric voltage applied across the chamber is used to collect these ions, causing a steady small electric current to flow between two electrodes. When _____ enters the space between the electrodes, the ____ particles attach to the charged ions, neutralizing them. This causes the number of ions present – and therefore the electric current – to fall, thus successfully <doing something>.

What is being described above ? ( Both blanks are the same)

Working of household smoke detectors

7

This ancient Indian system is considered the oldest example of a hashing function i.e; using shorter syllables or numerals to represent longer text. The Melakarta ragas (parent ragas) of Carnatic music are an example of the system, where the first two syllables of a raga indicate its position as well as swara-sequence.

What is the system we're talking about?

Katapayadi system

A clerihew is a whimsical, four-line biographical poem with rhyme scheme AABB. The first line is the name of the poem's subject, usually a famous person put in an absurd light.

In the following slides you will see clerihews on different people from the field of science and technology.

Identify the subject of each clerihew.

Example

_____<name>____________

Much fun for the layman

When safes he was poking

Surely he was joking

Ans: Richard Feynman

1

______________

Led by a godly sign

Engaged in spacetime-talk

Forgot to wear a sock

Albert Einstein

2

______________

Exalted was she

Glee she was showing

When the beaker started glowing

Marie Curie

3

________________

Is better than you are.

None of you asses

Can liquefy gasses!

Sir James Dewar

4

_____________

Did very well

By blowing up things of all sizes

Now his ghost atones for it with prizes

Alfred Nobel

5

________________

Make me feel sick

By uncovering the heart of everything

Using little toy balls and bits of string.

Watson and Crick