Latest Stories
Most recently published stories in Earth.
Travertine Pool in Hengduan Mountain-- A masterpiece of hydrosphere material cycle
Jiuzhaigou-Shuzheng Qunhai Cahuabian stone dam color pool is one of the main forms of travertine deposition. When the local surface water flows on a gentle slope, it is blocked by dead branches and leaves, and the flow velocity changes abruptly, which leads to the poor deposition rate of calcium carbonate and the formation of calcium flake stone dam color pool landscape. Cahuabian stone dam color ponds often appear in groups, with layers and beautiful lines, which is a fantastic scene of water color.
By Fwuebks Sushma4 years ago in Earth
Uncover the mysterious veil of "South Red agate"
Uncover the mysterious veil of "South Red agate" The origin of "Nanhong" The name "Nanhong" sounds like it has nothing to do with jewelry, and I don't know what it is. In fact, "Nanhong" is the abbreviation of "Nanhong". What is "Nanhong"? yes, it is one of agate. According to the Chinese standard "Jewelry and Jade name" (GB/T 16552-2017), agate is a variety of jade in quartz jade.
By Fwuebks Sushma4 years ago in Earth
Long-arm Muddy Yuanlong-- "Chimera", a bird dragon with bat wings
The first person to break this perception was Yi qi, which was published by Professor Xu Xing in 2015. Many parts of the body of the pterosaur are covered with feathers, which is similar to many other feathered dinosaurs. However, the forelimb area of this dinosaur still retains the imprint of the pterygium and has a rod-like long bone. Such long bones have no corresponding homologous structure in other dinosaurs and birds. On the contrary, similar structures can be seen in today's gliders such as hamsters. The main function of this long bone is to support the skin membrane, thus expanding the area of contact with air to increase buoyancy. As a result, the pterosaur was restored to have membranous wings and be able to glide like a pterosaur. Since only one specimen of the pterosaur has been found so far, although it caused a great sensation when it was published, scientists are very controversial about the structure of the rod-shaped long bone and pterygoid membrane.
By Fwuebks Sushma4 years ago in Earth
Biden says it will weaken Russia's space program, and Russia responds to freezing cooperation space stations in the United States and Europe.
Cooperation between the United States and Russia is crucial to the construction and operation of the International Space Station. After the Columbia space shuttle disintegrated on its return to Earth in 2003, Russia stepped in to launch astronauts for the United States to the International Space Station. After the decommissioning of the space shuttle in 2011, the United States relied on Russian spacecraft to transport astronauts to and from the International Space Station. It was not until 2020 that the SpaceX manned dragon spacecraft allowed American astronauts to re-enter orbit from the United States mainland. In response to the space cooperation between the United States and Russia, NASA also responded that the new export restrictions will not affect its cooperation with Russia on the operation of the International Space Station. (thepaper.cn, Russian satellite news agency)
By jsyeem shekels4 years ago in Earth
Global science
Material science Successful development of high strength and toughness molybdenum alloy for outer space nuclear reactor The space nuclear reactor has a broad application prospect in high-power earth orbit satellites and deep space exploration, but the materials in the space reactor need to be resistant to high temperature, neutron irradiation and other harsh conditions. Molybdenum and its alloys are key candidates for space reactors because of their high melting point and high thermal conductivity, but pure molybdenum has some problems such as low plasticity at room temperature and insufficient strength at high temperature. Recently, a study published in Acta Materialia has developed a high strength and toughness molybdenum alloy, which has obvious advantages in mechanics and radiation resistance compared with similar materials previously reported.
By jsyeem shekels4 years ago in Earth
The reason why the heart grows on the left is because of this missing organ.
Why does the heart grow to the left? it starts before it starts to develop. Some genes are no longer present after a few hours of expression during this period. And it is these "retirement" genes that make you and me healthy.
By gaisndm Hawkshaw4 years ago in Earth
We all live in a big bubble, and it created thousands of stars in the night sky.
A bubble spanning 1000 light-years surrounds our solar system, where thousands of young stars are born. It is called a local bubble and is produced by the gorgeous death of stars-supernova bursts-providing conditions for the formation of new stars. However, in the 50 years since its discovery, due to the limitations of observation technology, the overall image of the local bubble has been blurred to astronomers. Recently, someone has finally unveiled its mystery.
By gaisndm Hawkshaw4 years ago in Earth








