Pequeñeces Mias... @noelis-alcalde698 - Tumblr Blog

Sometimes I think there exists two Japans. The one is collage of crisply colored Ukiyo-e woodblock prints, Harajuku fashion, Hello Kitty, Studio Ghibli animated films, The Karate Kid Part 2 (Ralph Macchio, not Jaden Smith), and that one, ill-conceived installment of The Fast and the Furious franchise. Unrealistic Western stereotypes of a rich and complex society that has existed for over two thousand years. A commercial product imported for American consumption and which I imagine has little to do with daily Japanese life. My idea of the other Japan comes from the pages of books and is very different from the first Japan in my imagination. This other Japan is both more subdued and substantive, defined by the stylistic simplicity of Japanese prose translated into English. There is air between the sentences and the plots unwind gently.

http://bookriot.com/2017/05/18/exploring-japan-through-6-books/

quotemadness

What if the person you were meant to be with could never be yours?

Lauren Kate (via quotemadness)

Whoa!

artsyskills

COSMIC ILLUSTRATIONS BY NIRETH

More by the Artist Here

fyphysica

That’s Electrooculography!

The eye is a basically a dipole ( a separation of electric charges )

It was observed by Reymond in 1848 that the cornea of the eye is electrically positive relative to the back of the eye.This potential was surprisingly not dependent on the amount of light falling on the eye.

The cornea is the transparent front part of the eye

Dipoles and Eye Tracking

This means that as the eye moves from side to side, the dipole moves as well. To capture the movement of the dipole, one places two electrodes on both sides of the eye. ( like the one placed on this guy )

If the eye moves from the center position to the right, one of the electrodes becomes slightly positive and the other negative. This leads to a spike in the positive direction.

Source

And if the eye moves from the center position to the left, the polarity of the electrodes reverses. This leads to a spike in the negative direction.

That’s about it. That’s EOG for you all. I hope you guys enjoyed this post.

Have a great day!

Sources and Extras:

More about EOG

Gif source : The backyard brains

fyphysica

Up and Down

You can also measure upwards and downwards motion of the eye using the same EOG. And you do that by placing the electrodes on the top and bottom of the eye. ( It works the same way )

Application to VR

Guys, there are lot of people working on interfacing VR with EEG/EOG/ECG. ( Read more ). Hang tight :D

curiosamathematica

On Monday, the Onion reported that the “Nation’s math teachers introduce 27 new trig functions”. It’s a funny read. The gamsin, negtan, and cosvnx from the Onion article are fictional, but the piece has a kernel of truth: there are 10 secret trig functions you’ve never heard of, and they have delightful names like ‘haversine’ and ‘exsecant’.

fyphysica

Trigonometry and its weird names have baffled me for ages. I decided to put an end to this madness by trying to understand them ;P

Here is my interpretation on what thy mean. You can find a detailed etymology here.

Sine

Sine ( meaning ~ bowstring in sanskrit )is ratio of the length of the bowstring with the diameter of the circle that the bow makes.

Sin(theta) because this ratio is solely dependent on the angle ‘theta’. Even the slightest change in theta messes up this ratio.

So, when theta = 90 (or 2*theta = 180) , we can see that x = d. This is why sin(90)= 1.

Cosine

‘Compliment sine’ ( ratio in the perpendicular direction of sine )

Cosine is the ratio of the distance between the bowstring and the center of the bow circle to the diameter of the circle.

So, when theta = 0 , we can see that y = d. This is why cos(0)= 1.

Sine2 + cosine 2 = 1 ?

Well.. thats because of our old friend Pythagoras

Have a great day!

fyphysica

Tangent (’touching’)

Imagine you are the center of the circle and shoot an arrow through the point (x,y). Your friend is on the circumference of the circle and starts running perpendicular to the circle.

Tangent is the distance that your friend needs to cover in order to catch that arrow.

Heres why the tangent is sin/cos

Why so many functions ?

It is important to realize that the reason why we have so many trigonometry functions: Trigonometric functions are merely ratios of distances.

Before the days of calculators, these ratios were manually calculated, and as a result, many functions were introduced and made into tables to ease the computation.

Have a great day :D

thefearsarepapertigers

… let us temper our criticism with kindness. None of us comes fully equipped.

Carl Sagan (via thefearsarepapertigers)

bookmania

I have a million things to talk to you about. A million things we have to talk about. All I want in this world is you. I want to see you and talk. I want the two of us to begin everything from the beginning.

Haruki Murakami, Norwegian Wood (via bookmania)

De los libros que me encantan!

fuckyeahfranzkafka

To dare is to endure, to give oneself to life, to carry on as if untroubled from one day to another.

Franz Kafka, from Gustav Janouch’s Conversations with Kafka (via fuckyeahfranzkafka)

thepersonalquotes

Everyday Inspiration

noelis-alcalde698

Se necesita... jaja

victongai

Ticketing’s New Machine

Victo Ngai

A recent piece for the United Airline Rhapsody magazine on ticketing’s new machine. “With the emergence of a legitimate, tech-driven secondary ticket market, the cost of seeing LeBron James dunk or Bono perform live all depends on what the market will bear,”

Big thanks to AD Christos Hannides at Ink Global!