Picture appreciation of sci-tech newspaper manuscripts
Science and technology newspaper handwritten newspaper picture 1
Science and technology newspaper handwritten newspaper picture 2
Science and technology newspaper handwritten newspaper picture 3
Science and technology newspaper handwritten newspaper picture 4
Science and technology newspaper handwritten newspaper picture 5
Science and technology newspaper handwritten newspaper information: slogan of science and technology festival
1 technology imagines the future, culture enriches the soul, art embellishes life, and * * * ignites hope.
Astronomical geography is more mysterious, and whimsy is more fun!
Technology brings happiness, technology brings dreams!
Strengthen the popularization of science and technology and improve the scientific quality and comprehensive ability of the whole people!
Today's whimsy will be fruitful tomorrow.
Vigorously carry out scientific, technological, cultural and artistic activities to comprehensively improve the comprehensive quality of teachers and students.
7 Science and technology create a better world!
Today's whimsy will be fruitful tomorrow.
Spread the wings of science and fly the dream of science!
10 Respect knowledge, talents and labor.
The content of science and technology newspaper handwritten newspaper: science and technology change life
With the continuous development of science and technology, our living standards are like sesame blossoms, and our lives are also rich and colorful. It can be said that technology has changed our lives.
A long time ago, people could only put a written letter in an envelope and let the postman deliver it to the recipient to convey information. Now, the way of transmitting information has changed dramatically, and it can be easily realized by email or telephone. Thanks to modern communication tools, grandpa, who is now in his seventies, has a bright smile on his face all day. Look, he is using his mobile phone to invite his old friends to the park to play Tai Ji Chuan! Every time at this time, my grandfather will smile and say happily, "Now technology is developed, and even our elderly people use old-fashioned mobile phones!" " Yes, there are a large number of mobile phones for the elderly, and the sound is still very clear. As the saying goes, "seventy years old is rare", but now, even if you live to 80 years old, it is no longer rare. Look, grandma is also chatting with her cousin in Shenzhen on her mobile phone!
People used to cook with firewood, and the baked food tasted terrible and burnt, but now people use electric pressure cookers and microwave ovens. Look, grandma is already cooking with an electric pressure cooker! At this time, my grandmother said to me: "Now that technology is developed, the electric pressure cooker has been invented. This electric pressure cooker is really convenient! " "Yes, since our family has this pressure cooker, the cooking time has been shortened from the original 1 hour to tens of minutes, and the cooked food is delicious and fragrant!
Dad opened a company in Shenzhen as the boss and went abroad for business trips many times, but it took a long time to reach his destination, let alone do business, because of inconvenient transportation. But with the development of traffic and the opening of high-speed rail, it is very convenient for dad to do things now, from the original four or five hours to two or three hours, which is really convenient!
I am a loyal netizen, but don't get me wrong. I don't often play computer games, but I often use the computer to look up information, watch news, send emails and participate in online competitions ... Unconsciously, the computer has become my "good friend". I remember once, the teacher asked us to find out which ones were the "Three Sus". I think hard and rack my brains, but I just can't think of it. Soon, I regarded the computer as a "good friend", so I immediately went online to look up information. It turned out to be Su Zhe, Su Shi and Su Xun in the Song Dynasty. I can't help secretly marveling at how many functions computers have!
Today, we are fortunate to grow up in a brand-new era. The flower of science has never been so brilliant as it is today. I believe that as long as we cultivate our love for science, develop good habits in the discipline and bravely climb the peak of science, our future life will be more colorful.
Science and technology newspaper handwritten newspaper information: wisdom life science popularization
Ink is used for writing. However, it is difficult to eliminate ordinary ink after writing, which hinders the recycling of paper. I saw a magic ink in the column "I love inventing" today.
According to Professor Dong Chuan, the inventor of this ink, "The magic of this ink is that it will disappear under the action of light and water after writing. Therefore, we named this ink' Fashion Ink'. " The reporter is a little incredulous and is going to do an experiment to verify Professor Dong's ink.
The reporter prepared three kinds of paper: printing paper, stationery and newspaper. First of all, the reporter wrote and painted on the printed paper with easy-to-fade ink, ordinary watercolor pen and watercolor pigment, and then sprayed water on it with a sprinkler for watering flowers. In less than a minute, you can clearly see that the words written in fadeable ink have changed obviously and the color has faded a lot, but it will take some time to disappear. Then, the reporter wrote on stationery and newspapers. However, what was written on the stationery did not disappear. Professor Dong explained: "Because the fibers used to make all kinds of paper are different, and the penetration degree of this ink is different from that of all kinds of paper, the fibers and ink of stationery like this have strong penetration, so it takes a long time." Then I read the newspaper, and the result was greatly unexpected. The words in the newspaper disappeared as soon as they touched the water. Looking at the three pieces of paper together, the words written by Professor Dong in ink are almost invisible, but there are still some traces.
To this end, Professor Dong invented another kind of paper. In fact, this kind of paper is nothing special, just covering ordinary paper with a plastic film. Write on it with faded ink. Wipe it with a wet cloth, and there is no trace at all. Wipe it gently and the trace on the cloth will be gone.
Although this kind of ink can improve the utilization rate of waste paper, it will disappear when it touches water. If it is a roll paper for examination, it will be bad. In order to perfect this kind of ink, Professor Dong invented another kind of ink which can be dissolved in boiling water. Later, the reporter started the experiment again.
There are two pots heating on the table. After the water boiled, the reporter put the ordinary printed printing paper in one pot and the paper with ink invented by Professor Dong in another pot. The water temperature rises slowly. When the water temperature reaches 50℃, you can see that the ink characters have disappeared, the water has not changed, and the ordinary printing paper has not changed.
It's amazing! I hope this kind of ink can be widely used in our daily life in the future, which will greatly reduce the waste of paper.