资讯

Silk’s remarkably repetitive molecular structure gives the material its tensile strength, while the molecules themselves grant its biocompatibility and biodegradability. In fact, by boiling the ...
Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...
These tiny creatures release silk threads, creating 'angel hair' landscapes. Though startling, this natural phenomenon is harmless to humans. Scientists are studying this ancient survival method ...
They flock to the Kuchu Teien (aerial garden) Observatory located on the rooftop of the 170-meter-high Umeda Sky Building in the city’s Kita Ward. The unique-looking structure consists of two ...
WE wish to suggest a structure for the salt of deoxyribose nucleic acid (D.N.A.). This structure has novel features which are of considerable biological interest. A structure for nucleic acid has ...
Apr. 23, 2025 — Inspired by the movements of a tiny parasitic worm, engineers have created a 5-inch soft robot that can jump as high as a basketball hoop. Their device, a silicone rod with a ...
Aerial video above the heart of Loughborough, UK, showing dense patches of red brick houses, commercial buildings and busy streets. Royalty-free licenses let you pay once to use copyrighted images and ...
Over 2,000 years ago, Zhang Qian traveled to the Western Regions, opening up the Silk Road and building a bridge for economic and cultural exchange across Eurasia. Today, the love story of an ...
An aerial drone photo taken on April 19, 2025 shows the Jade Lake in Mangya, Haixi Mongolian and Tibetan autonomous prefecture of Northwest China's Qinghai province. [Photo/Xinhua] Because of the ...