RAMMY DAVID

The world is full of

The world is full of surprises. With the continuous increase of knowledge, I often like to think and explore some interesting phenomena found in life. Every discovery makes me happy, and every exploration makes me fascinated. Today, let me tell you about one of them. Every morning, grandma will give me carefully prepared nutritious breakfast, fragrant boiled eggs are essential. However, peeling the eggshell is a laborious job, because it will be "bumpy" and unrecognizable. How can you peel a slippery egg quickly and well? I suddenly remembered that in the book "1000 small Encyclopedia of Life", there was a small experiment introduced - the lunch box peeling eggs. So I decided to try it myself. I first prepared the required ingredients according to the book - a hard-boiled egg, a crisper and some cold water. Then, I put the boiled eggs into the crisper, add a certain amount of cold water (water and the height of the eggs should be about the same), cover the lid, and then I shook up vigorously. 10... 9... 8... 3... 2... 1, time is up. I couldn't wait to open the lid. Woah! I was surprised to find a whole boiled egg lying in the middle of the box. The experiment was a success! But why can the lunch box peel eggs? Curious, I ran to ask my mother. My mother touched my head and answered with a smile, "This is the principle of heat expansion and cold contraction." When a freshly cooked egg is immersed in cold water, the eggshell membrane and the egg white contract to different degrees when cold, and it is easy to form a certain gap, coupled with hard shaking, so that the eggshell easily falls off." Oh, I finally know the answer. By doing this experiment with my own hands, I understand that many interesting phenomena in our daily life contain a scientific truth. As long as we are good at observation, diligent in thinking, and brave in practice and exploration, we must be able to know the mystery.Bacon said: "If you tell happiness to a friend, you will get two happiness..." Therefore, happiness can be transmitted and shared. I remember during the winter holiday, my mother bought me a tiger kite, and it was windy that day, so I called my good friend, Lao Fan, and went to the square to fly the kite. When we got there, we assembled the kite, and soon the tiger kite was assembled. First of all, I held the line wheel in one hand, the kite in the other hand, and then ran up, the kite was thrown, although flying up, but soon it was like a deflated balloon slowly down. At this time, old Fan, who was standing beside him, was eager to try and said: "Ha ha, you are not going to make it, let me try, I can surely make it fly and not fall!" I took one look at his confident face and handed him the kite, which flew almost the same way I did, except that he stretched the string and then let it out. However, his technique is not so good, and soon he falls behind. His face turned red and he said, "There must be something wrong with this kite! At this time, the old man sitting beside us came over and said to us with a smile, "The kite is not broken, but your flying method is not right." Fly the kite upside down, but also have to fly along the wind, only in this way, can fly well "We listened to the old man's words, realized the skills of flying a kite, sure enough, after a while the kite jumped into the air, the tiger kite in the air, it seems to have become a real tiger, we each smile. We must learn to share happiness, because sharing happiness is a risk, and only by learning to share can we become selfless people.