Makale
25074 keşif · Açık ağdan seçilmiş keşifler, en yeniden eskiye.
-
All 5 genetic “letters” of DNA and RNA discovered in a 4.5-billion-year-old asteroid
Scientists have discovered all five essential nucleobases used in DNA and RNA in pristine samples from asteroid Ryugu, revealing that key ingredients for life existed in space billions of years ago. The remarkable finding adds to growing evidence from other asteroids and meteorites that these molecules were widespread throughout the early Solar System.
ScienceDaily · EN
-
Scientists identify two overlooked skills that predict reading success
A massive new study reveals that intelligence plays a surprisingly limited role in children's reading success, while visual processing showed no meaningful connection at all. Instead, the strongest predictors are sound recognition, vocabulary, and background knowledge, offering new clues about how to help struggling readers.
ScienceDaily · EN
-
Scientists discover surprising heart benefits of eating avocado and mango every day
Eating an avocado and a cup of mango every day may provide surprising benefits for heart health, according to a new study involving adults with prediabetes. After just eight weeks, participants experienced significant improvements in blood vessel function and diastolic blood pressure, particularly among men. These benefits occurred without weight gain or changes in calorie intake, suggesting that the nutrient-rich combination could support cardiovascular health through a simple dietary adjustment.
ScienceDaily · EN
-
Scientists discover a surprising clue to autism's origins hidden in the placenta
Scientists have uncovered an unexpected connection between inflammation during pregnancy, placental damage, and autism-like traits in male mice, while females appeared naturally protected. The discovery could help explain why autism is diagnosed more frequently in boys and reveal new opportunities for early intervention.
ScienceDaily · EN
-
A 50-year-old mystery of vanishing frogs reveals a hidden killer
A nearly 50-year-old mystery involving disappearing frogs in Brazil may finally be solved, with scientists uncovering evidence that a deadly fungus swept through the region and devastated vulnerable species. Remarkably, many frog populations have since rebounded, suggesting they developed greater tolerance to the disease that once threatened their survival.
ScienceDaily · EN
-
The brain’s hidden fear mechanism may explain anxiety and PTSD
A surprising new discovery suggests that fear may cause the brain to blur the line between danger and safety rather than distinguish them more clearly. By observing brain activity in mice using augmented reality, scientists found that memories of threatening and harmless environments began to overlap, potentially allowing faster responses to danger. This "better safe than sorry" survival mechanism could help explain why people with anxiety or PTSD sometimes experience intense fear in completely safe situations.
ScienceDaily · EN
-
Why are we so squeamish about eating hagfish?
When fishers are out working their boats, they are typically targeting a specific type of fish. However, other species often end up in their nets or trawls as well. This is known as "bycatch"—seafood for which the fishers receive no payment. Although it is illegal to discard bycatch back into the sea, it still happens.
Phys.org · EN
-
Why we give flowers to those in grief—or buy them for ourselves when we're sad
During his renowned excavations at the Shanidar Cave in the Kurdistan Region of Iraq, American archaeologist Ralph Solecki located burial sites containing pollen and flower fragments from various species of wildflowers. He interpreted this as evidence that Neanderthals may have placed flowers around their dead at their burial sites around 60,000 years ago.
Phys.org · EN
-
Beetle poop may have helped shape millions of years of yeast evolution
University at Buffalo scientists have found evidence that different species of yeast have shared genes originally acquired from an ancient virus—and the guts and droppings of beetles may have helped make it happen.
Phys.org · EN
-
Many local communities know how to communicate during disasters. Let's learn from them
It was a frightening time.
Phys.org · EN
-
'Evolution in the act': Forest lizards reveal rapid adaptation in a warming world
Yale research scientist Saúl Domínguez-Guerrero didn't set out to catch "evolution in the act" when he traveled to the Caribbean with a team of Yale researchers a few years ago. At the time, the team from the lab of evolutionary biologist Martha Muñoz planned to do fieldwork on Caribbean anoles, colorful, tree-dwelling lizards native to warmer regions of the Americas.
Phys.org · EN
-
JWST may have found where heavy black hole seeds formed
Astrophysicists think that the supermassive black holes (SMBH) we see in the modern universe are the result of a long, drawn-out process. That process is referred to as the hierarchical black hole mergers framework. It explains how some SMBHs can reach such staggering masses. Some of the most massive appear to have billions of solar masses.
Phys.org · EN
-
Forgotten flint tools reveal how Egypt's farmers organized work before the pharaohs
More than a century after they were excavated from beneath Cairo, almost 3,000 stone tools from Heliopolis show that specialized work was already reshaping village life before Egypt became a state.
Phys.org · EN
-
Afforestation reshapes wildfire activity across temperate regions worldwide
Tree planting provides wood, biomass and climate benefits, but the location where those new forests are established matters. An international study by researchers in Spain, Chile and Finland shows that converting nonforested land into planted forests can increase wildfire activity, with contrasting outcomes across temperate regions.
Phys.org · EN
-
The Monstrous Raptors That Threatened Our Ancestors
Did birds of prey shape human evolution? The post The Monstrous Raptors That Threatened Our Ancestors appeared first on Nautilus .
Nautilus · EN
-
Tourist Posts a Photo to a Facebook Group, Accidentally Discovering 120-Million-Year-Old Dinosaur Footprint
Not your average vacation snap The post Tourist Posts a Photo to a Facebook Group, Accidentally Discovering 120-Million-Year-Old Dinosaur Footprint appeared first on Nautilus .
Nautilus · EN
-
[分享创造] AI coding 让开发成本大降，现在缺的是 idea：我把一个比赛的 1.4 万个作品筛了一遍
AI coding 之后，独立开发的门槛低了很多，以前是"就差一个程序员"，现在是"就差一个 idea"。但个人视角有限，找一个有潜力、又和自己契合的方向并不容易。 最近 WorkBuddy 「 1024 造物挑战」程序员节应用创作大赛有 1.4 万多个公开作品，我把它当成现成的创意库做了一次筛选学习。（数据来源为公开作品页，个人学习整理） 我的标准（一句话） 只留「一个人能做、不用教育市场、不被巨头或资质卡住、且有人愿意付钱」的创意；拿不准就进待定，不硬判。 两张图 第一张是总览页，第二张是单个作品的评估卡片，用来展示评估维度。作品标题、作者和内容都做了模糊处理，图里的"适配分"只是对我个人背景的契合度，不是对作品的评价。 三层漏斗 规则层：去重、去空、去套话，纯代码。 模型层：用 DeepSeek 批量做初筛排除和评分，包括痛点、方案、变现、差异化四维，以及和我个人情况相关的"适配"六维。 人工层：自己做了个页面做组合筛选，对模型判断做改判 排除标准 E1–E12 （都是我个人的取舍，不是对作品好坏的评价） E1 单个 Skill / 提示词就能替代 E2 合规、版权灰色 E3 纯娱乐 E4 低频 E5 模仿复刻 E6 需要 ToB / ToG 才能成交 E7 赛道拥挤 E8 重复投稿 E9 面向开发者（我个人认为付费意愿偏低，不代表开发者工具不好） E10 需要教育市场 E1
V2EX · ZH
-
[问与答] BTC 被盗了还有机会追回吗
为了嫖一个 team48 的 gpt ，给 gate card 转钱的时候用复制粘贴的方法输入了助记词，结果今年副业收入的四万 rmb 全部被转走了。 地址是 bc1qstkdzr6hgrwzkhjkp8h03fgdyuw82t8wxuj26v 各位大佬们，这还有机会追回吗？痛！太痛了！！！
V2EX · ZH
-
[程序员] AI 时代下程序员的出路在哪里？
因为 AI 编程现在已经快速成为编程的主流了，以后程序员的工作机会肯定会越来越少。 尤其对于初级程序员，清华大学发布的《 AI 时代技能趋势报告》显示,初级程序员岗位 AI 替代率达到 87%。 有些观点认为：程序员行业正经历结构性重塑,程序员的核心价值从“手写代码”加速转向“架构设计与 AI 协同”。其实我也这么认为，以前程序员的主要工作是写代码，但是很明显，现在不用写了，让 AI 写就行了。 那么问题来了，AI 时代老的程序员的出路在哪里？难道都去做产品或者 FDE 去？ 新的就别做程序员好了。
V2EX · ZH
-
[分享创造] vibe 了一个插件，表单文本数据恢复
不得不说，谷歌插件审核还是很快的，昨天提交的审核，今天就通过了 场景： 写了一大段内容，却因为误删、刷新页面或关闭编辑窗口，需要重新输入？ 留稿会在你开启保护的网站自动保存文本草稿，帮助你找回已经保存的输入内容。适合填写网页表单、编辑商品资料、撰写评论等场景。 无需注册账号，不上传草稿，不使用云同步。 密码字段不保存，识别出的验证码、支付及证件等敏感字段会被跳过。普通文本中的敏感信息可能无法全部识别，请谨慎选择开启保护的网站。 插件地址： https://chromewebstore.google.com/detail/jhfcpciejngnhokpodcggoagcoangekn?utm_source=item-share-cb
V2EX · ZH
-
[程序员] 如何减少人为干预，让 agent 独立工作并提高交付质量
使用 Agent 后，个人产出确实提高了，但人也更累了：因为人在闭环中，既要检查结果，又要随时纠正任务跑偏和设计问题，很难真正放手。 我在想有没有什么简单的方式，让人尽量少的参与闭环。提供更充分的上下文和参考资料，能帮助 Agent 理解任务、提高交付质量。我也在尝试让多个 Agent 相互讨论和审核。虽然不少产品支持 Subagent 协作，但我担心同一家厂商的模型可能存在相似的盲区，因此更希望引入不同厂商的 Agent 交叉验证。 目前，我主要通过 Markdown 文档或复制粘贴，让不同 Agent 审核、质疑彼此的方案。这样有一定效果，但仍需要我来回传递信息、协调过程感觉很麻烦。 有没有更简单的方式，让不同厂商的 Agent 自动协作、相互审核，减少人工介入？
V2EX · ZH