July 30, 2023
Why do cicadas shed their skin? The shell (exoskeleton) of cicadas is hard and cannot expand as cicadas grow. When exoskeleton is removed, this is peeling of cicada. (Image from Dongfang IC) The real name of Four Different Elepha...
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July 29, 2023
Education itself is anti-human Objectively speaking, it's hard for people in this world to accept everything we need to learn. Or we can say that study of this question is in itself an anti-human affair. Multiplication tables and ...
Read moreBrief scientific information: 1. Raw dumplings sink, boiled dumplings float, because hot air is lighter than cold; 2. Adding salt can make potatoes and eggs pop. Adding salt increases density of water. 3. A parachute made of plast...
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July 27, 2023
01. The beard is fastest growing hair on human body. 02. Coyotes often eat feces of other animals. 03. Wearing yellow will make you appear bigger in front of camera. 04. The average body fat percentage of pigs is around 15%, a...
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July 26, 2023
01. Ravens have a special hobby, such as pulling other animals' tails. 02.5 Thermometers appeared in 17th century, when thermometers were filled with cognac instead of mercury. 03. Diamond is hardest substance in nature, but not...
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July 26, 2023
In everyday life, we often observe amazing natural phenomena, such as lightning, volcanic eruptions, earthquakes, meteorites, etc. ... These natural phenomena have left a deep mark on people's minds, causing people's endless curi...
Read more21. Why is sea water mostly blue and green? Looking at sea, I often find that sea water is blue-green. However, when you scoop up sea water, all you see is that it is as clear and colorless as water was in past. It turns out that ...
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July 26, 2023
The universe is a mysterious place full of unknowns. Let's explore secrets of universe together and learn some interesting scientific knowledge. 1️⃣ Origin of Universe The origin of universe can be traced back to a massive explos...
Read moreOf course, I am happy to share some practical scientific facts that are not known to ordinary people. Here are ten examples: 1. When making coffee, boil water and wait for a while before brewing coffee to improve taste. This is be...
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July 26, 2023
Hello everyone, in last issue you received first issue of a small scientific experiment, this issue is second issue, haven't you learned some useful knowledge from it? The editor is also honored to provide you with more useful kno...
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