T-1 WORLD CUP/English » Taku Satoh

The Answer to the “104.5 degrees” Quiz at last!


Hi all!

Remember the quiz that is still left unsolved?
It’s the one t-shirt which its concept hasn’t been fully explained. All the other t-shirts, you can read their ideas in each of the designer’s page.

“104.5 degrees” by Taku Satoh.
Have you figured out what this angle stands for?


The angle, Taku says, is “an important angle for us.”
With the t-shirts starting to arrive at your homes, it’s about time we reveal the answer, right?

The angle, 104.5 degrees, is….
the angle that the hydrogen and oxygen elements connect when they form the water molecule.

Was the quiz too easy for you?

If water, created by hydrogen and oxygen forming that angle, did not exist…
Definitely, this angle is important to us, and the color of the t-shirt itself was a huge hint!

But there was more to this quiz, remember?

What are the 5 elements, or 5 steps, for this angle to turn into this t-shirt? With these 5 steps, this t-shirt and this angle 104.5 degrees becomes connected.

Many readers sent us their answers to us, but only two readers solved this quiz, one from Fukuoka prefecture, and the other reader from Miyagi prefecture.

Taku was surprised that two readers came up with the correct answer.
Here’s Taku with the explanation of the answer to this quiz.


(Taku’s message in English)

Today I would like to announce the answer to my quiz.
The angle, 104.5 degrees, is the angle that the elements of the water molecule form.
Water consists of one hydrogen element and two oxygen elements.
These three elements form this angle, 104.5 degrees to create the substance water.
The first factor of the answer is that this angle is the angle of the water molecule.
The second factor is that ice floats on water because of this angle.
Usually when a substance becomes its solid form, its density is higher than that of its liquid form, thus creating the solid form to sink.
However, since water is formed by this particular angle, ice floats on water.
The third factor is that life begun since ice floated on water.
If the ocean was to freeze from the bottom, it is said that life would not have begun.
The fourth factor is that the beginning of life leads to the evolution of human beings.
The fifth factor is that since we exist here and now as human beings, this t-shirt exists.
These are the five factors that connect this angle and this t-shirt.

Two readers solved this quiz. Congratulations!
This is a prize for those two readers, a card game from a TV program I am involved in, “Nihongo de Asobo (Let’s Play in English)”.
These set of cards will come with my autograph (Don’t tell me you don’t want my autograph!)
The illustration on these cards was done by Masayoshi Nakajo, and was produced by Takashi Saito.

I would like to explain a bit why I designed this t-shirt this year.
Our world faces a water crisis today, with many places lacking minimum supplies of water to survive.
But on the other hand we drink and use water everyday and take it for granted.
The other day someone told me that the substance water is not yet fully understood and new findings are being revealed bit by bit.
This blew me away, so I wanted to design this year’s t-shirt with water as my theme.
But at the same time, I didn’t want to make it too serious.
You don’t want t-shirts preaching you ideas.
So I wanted to design a casual t-shirt for everyone to wear, but keeping its depth so that anyone who is triggered by it can go into deeper thoughts.
I am deeply interested in water right now, and hope that this t-shirt helps people think more about water.
Thank you!


As announced in this movie, Taku will present the readers with the correct answer with card games from the TV program “Nihongo de Asobo (Let’s Play with Japanese)”.

The illustration in this card game was done by graphic designer Masayoshi Nakajo, the design done by Taku, and produced by Professor Takashi Saito of Meiji University.


And of course…


the card game is autographed by Taku!


Congratulations again! We’re sending out the prizes out right away!
Thank you again for all the answers you sent us. Make sure to explain the meaning of 104.5 degrees when you wear this t-shirt!

See you again soon!


Have you solved the quiz? 104.5 degrees.

“104.5 degrees” by Taku Satoh.
With the quiz on the front and its fresh color, the t-shirt is ranked as one of the most popular t-shirt. Definitely in the winning range!


Have you figured out the answer to this quiz?
The clue from Taku reads “an important angle for us” on the tag.

The tilt of the earth’s axis?
The refraction factor of light?
The angle we bow?

Everyone comes up with different guesses.
So we visited Taku to ask him for more clues. Here’s the interview on movie.
Do you know the answer to the quiz now? The color of the t-shirt is a clue. If you look it up on the web, the answer is there for you.
What? You’re still not sure of the answer?
Okay, let me mumble to myself for a while..

…”The biggest clue appears in the movie”

Okay, end of mumbling.
I’m sure you’ve solved the quiz now!
But there’s more to this quiz. Taku gave us another quiz to solve.

Here’s the new quiz.

Explain the 5 steps of how this angle and the t-shirt becomes related
Don’t ask me, I have no idea! Nobody at our T-1 office have any clue!
Those of you who’ve figured out the answer to this super-difficult new quiz, send us your answer, now! Please!

A new quiz has popped out from the 104.5 degrees quiz.

We’ll announce your answers here in the near future! Until then!