2016年5月29日 星期日

EU ministers set 2020 target for free access to scientific papers

Results of research supported by public and public-private funds set to be…

2016年5月28日 星期六

Why Ancient Brits threw out their most valuable possessions

Why did ancient Brits throw out their valuable possessions? This is a question that researchers across Britain and northern Europe are asking about the Bronze Age hoards that have been left in the ground across Britain. Many have lain undiscovered for 4,000 years. Our curators are interviewed in this BBC Britain articlehttp://ow.ly/VHkn300z9UG

Hundreds of objects that seem far too important to dump have been found in…

2016年5月21日 星期六

Mary Anning

Natural History Museum, London 新增了 3 張相片 — 在Natural History Museum, London

Fossil hunter Mary Anning was born ‪#‎OnThisDay‬ in 1799.
This palaeontological pioneer spent much of her life searching for the remains of fossilised marine reptiles along the Dorset coast. Her finds and observations played an important part in many scientific discoveries, including the first ichthyosaur skeleton correctly identified and the identification of coprolites.
Still, Anning struggled to find acceptance in the scientific community of 19th-century Britain, which was mostly made up of Anglican gentleman, and consequently struggled financially for much of her relatively short life.
Today, several of Anning's discoveries are represented in the Museum's Marine Fossil Reptiles gallery, and Museum learning activities aim to highlight her story.

Mary Anning. Jane Austen 的小說描述過的地方:英國Lyme Regis 地方及小說家 John Fowles的地方簡史和其二百多年 Belmont House

Mary Anning was born ‪#‎onthisday‬ in 1799, one of the most famous fossil finders of her day. Her family had earned a living for years by gathering fossils on the shore at Lyme Regis in Dorset to sell to collectors, leading to the well-known rhyme: ‘She sells sea shells by the sea shore’. Mary learned about the fossils from her parents. Despite the lack of a formal education, she became an expert on the fossils she found, and the most eminent geologists of the day often sought her advice. In the 1820s she became the first person in Britain to find complete specimens of an ichthyosaur, a plesiosaur and a pterodactyl.
The specimens that Anning collected can still be found in museums throughout Britain. This large skull is part of the skull and lower jaw of an ichthyosaur (Ichthyosaurus platyodon). The British Museum purchased this shortly after Anning discovered it. The Museum’s natural history collections moved to South Kensington in the 1880s and this is now on loan from the Natural History Museum, London, on display in our Enlightenment Gallery.

British Museum 的相片。

2016年5月20日 星期五

Dung Beetles Navigate Poop-Pile Getaways Using Celestial 'Snapshots'

Oliver Sacks Foundation
Dung beetles, navigating by the stars.

Dung Beetles Navigate Poop-Pile Getaways Using Celestial 'Snapshots'
The tiny waste harvesters use the Milky Way as a guide to roll their dung…

It's not easy being a dung beetle.
Besides the obvious fact that they eat, well, dung, the act of just getting a meal is an involved process.
In the most elaborate carry-out scenario, the dung beetles must first stake claim to their piece of poop at the main dung pile, then shape it into a sphere for easy transport, fend off other dung beetles trying to steal it, and then — using the stars to navigate — determine the fastest way to roll their prize away to a safe spot for consumption.
But now, researchers from Lund University in Sweden say one part of this process might not be as taxing for the dung beetles as previously thought: The celestial navigation.
In a study published in the scientific journal Current Biology, researchers say dung beetles take "snapshots" of the stars and store the images in their brains.
Instead of using the stars — specifically the Milky Way — as a map that the beetles intermittently reference for directions, the researchers say dung beetles take one snapshot of the constellation, which is sufficient for navigation.
One of the researchers, Basil el Jundi, explains in a press release that the snapshot method for orientation allows the beetles to be more efficient because they don't have to rely on long processes to retrieve information.
"We are the first to have shown that dung beetles are taking these snapshots. We are also the first to show how they store and use the images inside their tiny brains," el Jundi says in the statement.
Researchers say the beetles make the snapshot while "dancing" atop their ball of dung. As the Two-Way previously reported, this poop-pile jig helps the beetles determine which path away from the dung is the best route...

2016年5月19日 星期四

《簡氏防務周刊》 :中國水下長城系統或削弱美俄潛艇優勢

新聞 / 軍事



2016.05.19 06:10


這篇由美國的中國軍事專家理查德·費舍爾撰寫的文章說,這個傳感器網絡體係也被稱為“水下長城計劃”,相關信息已經公開有一段時間,但是中國船舶工業集團公司實際上計劃建設的是改良版的中國水下聲波監聽系統(sound surveillance system)。在冷戰時期,美國曾研製水下聲波監聽系統,在對抗蘇聯潛艇方面具有顯著優勢。




美國國家利益網站在一天前發表了美國海軍戰爭學院中國海洋研究所教授萊爾·戈德斯坦(Lyle Goldstein)一篇題為《中國“水下長城”》的文章,分析《中國海洋報》去年12月的一篇有關構築海洋水下觀測體系建議的文章。戈德斯坦援引中國的文章說,中​​國的“水下長城”要覆蓋中國管轄海域,“而且要涉及關係國家利益的全球海洋,特別要對近海、深遠海、邊遠海島、戰略通道等關鍵區域” 。


2016年5月18日 星期三

With a Patient's Virtual Heart, Doctors Predict Cardiac Arrest

A customized computer model showing a heart's unique pattern of electrical activity can guide medical intervention

A customized computer model showing a heart's unique pattern of…

2016年5月14日 星期六

Google開源全球最精準AI自然語言理解技術;SyntaxNet ;Google to developers: Here's how to stop making dumb chatbots

Google Research今天宣佈,世界準確度最高的自然語言解

Generally, computers are useless at holding a conversation. They just take things a bit too literally. But Google is teaching computers how to make sense of the vagaries of human speech and text.
Starting today, Google is opening up those algorithms to outside software developers. The tools released will help programmers build language-based apps and services that are less prone to annoying misunderstandings than many of today’s chatbots. And they should help get developers hooked on the powerful machine-learning techniques Google is honing...

MIT Technology Review
We gave a Google language parser our own articles to read to test how well it works, and weren't disappointed.

The search company is releasing the secret sauce it uses to make sense of…

2016年5月11日 星期三

2016年5月10日 星期二

How a deep neural network learned to copy and paste artistic style

A neural network has taken its first tentative steps toward recognizing and reproducing artistic style.
A deep neural network has learned to transfer artistic styles to other images.

2016年5月8日 星期日

Is There a Fountain of Youth in Our DNA?

Weekend Reads: Nonie Hickle is 91. She ought to have cardiovascular disease, cancer, or at least gray hair. Yet she doesn’t have any of those things. Why not? The answer remains elusive despite one of the largest genetic studies to date of exceptionally healthy old people.
Many biotechnologists still think we might push death even further away, as these stories from the MIT Technology Review archives illustrate.
Study of exceptionally healthy old people fails to trace their well-being to specific genes.

2016年5月5日 星期四

This iPhone-sized radar could let drones fly further and avoid accidents

Compact radar system promises to let small drones cut the leash.
A sophisticated scanning radar the size of a paperback book could let…

2016年5月3日 星期二

The vitamin- nicotinamide ribosidethat- made elderly mice live longer, and stopped their organs from aging

basically, nicotinamide riboside helps to form NAD+. NAD+ keeps the mitochondria working. The mitochondria keeps stem cells healthy. And stem cells help our organs to regenerate.

基本上,煙酰胺核糖核苷有助於形成的NAD +。 NAD+保持工作的線粒體。線粒體保持幹健康細胞。而幹細胞幫助我們的器官再生。

The vitamin that made elderly mice live longer, and stopped their organs from aging