logo
Chinese study of feather fossils reveals how birds beat dinosaurs in conquering the sky

Chinese study of feather fossils reveals how birds beat dinosaurs in conquering the sky

Dinosaur feathers found trapped in Burmese amber have shed new light on the evolution of flight feathers, an essential step that allowed early birds to surpass their
dinosaur relatives in conquering the skies, a Chinese study has found.
Advertisement
Through a detailed structural study of feathers dating back 99 million years to the Cretaceous period (145 to 66 million years), the researchers were able to gain insight into how feathers evolved during this era.
'Feathers are critical for the flight of birds,' the team led by
Feathers are critical for the flight of birds,' the team led by
researchers from the Chinese Academy of Sciences (CAS) said in a paper published in the peer-reviewed journal Science Bulletin on May 13.
An essential feature of the evolution of birds was the
development of feathers that helped generate thrust and lift.
While modern birds are the direct descendants of
dinosaurs , scientists believe that most feathered dinosaurs in the ancient world did not have the same ability to fly, though there has been evidence that some species could glide or have powered flight.
Advertisement
When most people picture flying dinosaurs, the creatures they imagine with large, fleshy wings are actually non-dinosaur reptiles that lived in the same era, such as the pterosaurs.
Orange background

Try Our AI Features

Explore what Daily8 AI can do for you:

Comments

No comments yet...

Related Articles

Chinese scientists break design ‘curse' that killed US Navy's X-47B drone programme
Chinese scientists break design ‘curse' that killed US Navy's X-47B drone programme

South China Morning Post

time6 hours ago

  • South China Morning Post

Chinese scientists break design ‘curse' that killed US Navy's X-47B drone programme

Chinese aerospace engineers have a revolutionary software design, which they say will allow them to overcome a major barrier to stealth aircraft development The new platform allows plane designers to have as many design variables as they want without increasing computing load – a feat long deemed impossible in aviation circles. The researchers described their innovation as breaking the 'dimensionality curse' and used the US Navy's X-47B, a demonstration stealth drone, to illustrate how the system worked. Once celebrated for its carrier landings and autonomous aerial refuelling, the X-47B project was cancelled in 2015 because of unresolved trade-offs between stealth, aerodynamics and propulsion. However, the Chinese software design delivered dramatic improvements to the design with 740 variables, including measures to reduce flight drag and its radar signature, as well as improving engine thrust while maintaining airflow stability. 'Traditional global optimisation algorithms face the curse of dimensionality problem,' wrote the team led by Huang Jiangtao from the China Aerodynamics Research and Development Centre in a peer-reviewed paper published in Acta Aeronautica et Astronautica Sinica earlier this month. The shape of components such as wing leading edges and engine inlet ducts affects two crucial things: how smoothly the plane flies and how easily it can be detected by enemy radars.

Chinese man works at coalface with father aged 12, goes on to earn mining engineering PhD
Chinese man works at coalface with father aged 12, goes on to earn mining engineering PhD

South China Morning Post

time9 hours ago

  • South China Morning Post

Chinese man works at coalface with father aged 12, goes on to earn mining engineering PhD

A man in China who worked at the coalface with his father as a boy has gone on to earn a PhD in mining engineering, inspiring many people online. The 30-something man, who is known online as 'Coal Miner No 3', recently shared the acknowledgements from his PhD thesis on social media. He also recalled his childhood in a poor area and being sent to learn martial arts. At the age of 12, he joined his father down the coal mines while his mother ran the household. The man known as 'Coal Miner No 3' is pictured after a tough shift underground. Photo: Douyin Driven to escape poverty, he studied hard and worked part-time as a construction worker, a waiter, a cook and a miner during secondary school.

Has the Qianfan satellite network – China's Starlink rival – run into trouble?
Has the Qianfan satellite network – China's Starlink rival – run into trouble?

South China Morning Post

time21 hours ago

  • South China Morning Post

Has the Qianfan satellite network – China's Starlink rival – run into trouble?

A Chinese mega-constellation of communications satellites is facing serious delays that could jeopardise its ambitions to compete with SpaceX's Starlink for valuable orbital resources. Only 90 satellites have been launched into low Earth orbit for the Qianfan broadband network – also known as the Thousand Sails Constellation or G60 Starlink – well short of the project's goal of 648 by the end of this year. Under international regulations to prevent spectrum hoarding, satellite operators must deploy a certain proportion of their constellation within set times after securing orbits and radio frequencies. Shanghai Yuanxin Satellite Technology, the company leading the project, plans to deploy more than 15,000 satellites by 2030 to deliver direct-to-phone internet services worldwide. To stay on track, Yuanxin – which is backed by the Shanghai municipal government – would have to launch more than 30 satellites a month to achieve its milestones of 648 by the end of 2025 for regional coverage and 1,296 two years later for global connectivity. At the heart of the delay is a severe shortage of rockets, as China's manufacturing and launch capacity struggle to keep pace with the explosive demand for satellite deployment, according to a rocket engineer based in Beijing.

DOWNLOAD THE APP

Get Started Now: Download the App

Ready to dive into a world of global content with local flavor? Download Daily8 app today from your preferred app store and start exploring.
app-storeplay-store