Humanity was born millions of years ago and is the only intelligent life on Earth, the hegemon of the planet. Although humans were born millions of years ago, the true…
1. Frogs can absorb oxygen through their skin You may know that frogs can breathe through their lungs. But, do you know? Frog skin can also absorb oxygen, which is…
Tiger skin orchid is a common foliage plant, also known as tiger tail orchid, centenary orchid, and so on. There are many varieties, and different varieties have slightly different leaf…
Making grass and wood ash is actually very simple. For example, when cooking in rural areas, burning fires or kang beds is mostly made of dead wood, fallen leaves, wild…
Science is a method and activity for human exploration of nature and understanding of the world, and scientific discoveries are the crystallization and creation of human wisdom. In human history,…
1. Where does the seawater come from: an endless ocean, with blue waves rolling and making people fascinated and confused: where does so much seawater come from? Some people believe…
Another glorious year in the scientific community is coming to an end. In this year, astronomers have made new discoveries about the universe, biologists have created clearer maps of Earth’s…
The rotation and revolution of the Earth have always been a topic of human exploration. As early as ancient Greece, some astronomers proposed the idea of the Earth orbiting the…
If you turn on the world population clock, you will find that the world population has now reached 7.798 billion. Nowadays, human footprints have spread all over the world. There…
The Mayan civilization was an ancient civilization in Central America that developed advanced agricultural technology, architectural engineering, astronomical knowledge, etc., but suddenly disappeared between the 9th and 10th centuries AD….
