Sihai network

How is it that students get full marks for handing in white papers? Ninja lover's invisible paper

According to the daily mail on October 10, a Japanese student studying Ninja history handed in a white paper paper in class, but got the highest score because the professor found that her article was written in self-made invisible ink.

A 19-year-old girl wrote her paper with self-made invisible ink

The 19-year-old student, Yuhe Yingyang, used a traditional Ninja called 'baked out' and spent a long time soaking and grinding soybeans to make special ink. When the British and American professor heated the paper on the gas stove, her words appeared on the paper.

'I learned this from a book when I was a child.' Britain and the United States love Ninja history very much and like to study the mysterious assassins in Japan in the middle ages. When she was a child, she was also obsessed with Ninja animation.

British and American papers

After she was admitted to Japan's triple University, Britain and the United States took Ninja history as an elective course. The professor arranged an article on visiting the Ninja Museum, so she came up with the idea of making her own invisible ink.

'when the professor said in class that he would give high marks for creativity, I decided to make my article different.' Britain and the United States soaked and crushed the soybeans overnight, then squeezed them with a cloth. She mixed the soybean extract with water, spent two hours adjusting to the correct concentration, and then wrote with a brush.

In order to prevent professors from directly throwing white papers into the dustbin, Britain and the United States specially wrote a note in black ink to prompt: 'heat the paper.'

Tips for professors

Professor Yamada Youdao was very surprised when he saw this article: 'I have seen papers written in code, but I have never seen papers written in invisible ink.'

'I was a little suspicious at first, but when I heated the paper on the gas stove at home, the handwriting clearly emerged, and I shouted & lsquo; Great & rsquo;! '

'I did not hesitate to give full marks to this report, although I haven't read it to the end, because its form has gone beyond the content itself.' Professor Yamada said.

Anglo American said, 'I believe the professor will recognize my creativity. I'm not worried that I won't get good marks for this paper, even though the content itself is nothing special.'