Bookmarks (1882)

Earth's aerial biosphere supports transient microbial life in clouds, contrasting Venus' potential for permanent microbial habitation due to its lack of a habitable surface. The study highlights adaptive mechanisms, including microbial life cycles, droplet colonization, and gravity-wave mixing, for surviving in Venus' clouds. Further research is needed to understand the dynamics and biomass flux in Venus' lower haze layer.

This study revisits the potential for life in Venusian clouds, addressing challenges like acidity, low water content, and nutrient scarcity. It proposes a life cycle where microbes reside in cloud droplets, form desiccated spores upon descending to the lower haze layer, and are transported back to habitable zones to restart the cycle. Spores act as cloud condensation nuclei, enabling survival under extreme conditions.

The authors propose a life cycle for Venusian microbes that begins in the lower haze layer where desiccated spores reside in a dormant phase. The spores are transported upward by vertical mixing induced by gravity waves to a habitable layer of temperate conditions. Acting as CCN, the spores become encased in a liquid droplet (mostly H2SO4 with some H2O) and germinate. During months aloft,...

This research proposes a life cycle for microbial survival in Venus' atmosphere, addressing challenges of persistence. Microbes reside in liquid droplets, protected from atmospheric loss, but descend to uninhabitable layers as droplets grow. They survive as desiccated spores in the lower haze layer, returning to the clouds through vertical mixing. This cyclic process could sustain life in Venus' aerial biosphere under extreme conditions.

The Venusian cloud decks are often described as a potentially habitable environment. To withstand the dry atmosphere of Venus, microbial life must use the protective environment of the inside of the droplet. Free-floating metabolically active cells outside of cloud water are known, but they are a small fraction of the overall aerial biomass on Earth.

Google recently unveiled Gemini 2.0, its latest and most advanced AI model in what it terms the “agentic era.” This new model represents a significant leap forward in AI capabilities, offering a suite of features that promise to enhance user interactions and developer experiences across Google’s ecosystem.

Experts in deep ocean research provided feedback on how DeepSee improved fieldwork planning, enhanced the science return on limited samples, and streamlined team communication and decision-making during expeditions.

How are you, hacker? 🪐 What’s happening in tech today, January 17, 2025? The HackerNoon Newsletter brings the HackerNoon homepage straight to your inbox. On this day, Persian Gulf War began in 1991, Popeye the Sailor made his first appearance in 1929, Google Videos launched in 2006, and we present you with these top...

DeepSee was deployed during a Gulf of California expedition to aid in ocean research data organization, planning, and analysis. It streamlined workflows, provided valuable insights, and received feedback for further improvement in in-situ analysis capabilities.

Red Letter Days are key dates that hold cultural, emotional, or historical significance. By aligning your content with these dates, you increase relevance, deepen emotional connections with your audience, and boost SEO rankings. To leverage this in 2025, identify key dates, create seasonal content, find unique angles, and plan ahead for maximum impact. Plus, test your strategy with the Spacecoin Writing Contest, where you...

'JWT' or JavaScript Object Notation Web Token is a standard defined in [ RFC7519] It can be defined in multiple ways and can be used to transmit information between two parties. In this article, we will look at how to integrate `JWT` into a common Java enterprise application.

This article isn’t about cryptocurrency or decentralized finance. Instead, we’ll explore public EVM blockchains and how they can be used in your next project. I will delve into the pros, cons, and practical examples, using the 0xweb library.

Researchers in Spain have found that gamification is better at motivating software engineering students in performing QA tasks.

As 2024 draws to a close, it’s time to reflect on the key moments that shaped the digital landscape. At HackerNoon, we’ve always believed in the power of curiosity and conversation. That’s why our weekly polls have become a cornerstone of how we engage with our audience. They’re not just questions—they’re windows into what’s captivating the minds of our readers, writers, and the HackerNoon...

Researchers in Spain have found that gamification is better at motivating software engineering students in performing QA tasks.

Researchers in Spain have found that gamification is better at motivating software engineering students in performing QA tasks.

In the past, developers used the same API for both reads and writes on every case. This led to struggles with optimizing indexes on fields that were heavily queried. Valet key pattern, CQRS and search databases changed that.

Researchers in Spain have found that gamification is better at motivating software engineering students in performing QA tasks.

Researchers in Spain have found that gamification is better at motivating software engineering students in performing QA tasks.

A new paper investigates the intriguing possibility that gravitational forces from celestial bodies influence electrical activity and sap flow in trees.

This section examines NFT transaction networks using graph analysis, revealing decentralized structures and key influential nodes. Using metrics like reciprocity, k-core, and Article Rank, researchers identified strong connected components and trading influence in a network of 33,678 nodes and 425,246 transactions. Community clusters and collection-based dynamics were also observed, highlighting transactional patterns.

This section focuses on datasets and tools used for NFT transaction analysis on the Ethereum blockchain. Key datasets include 6.5M transactions from 4600 collections and time-series data for CryptoPunks. Visualization and graph modeling are performed using Neo4j, while LPPL models predict market trends. Simplified assumptions treat NFTs as homogeneous to streamline analysis.

This paper analyzes NFT transaction networks on Ethereum, focusing on growth, influential nodes, and market trends. Using graph analysis, researchers studied 7 collections from 2017-2021, identifying evolving network properties. The Logarithmic Periodic Power Law model predicts price trends for CryptoPunks, providing insights into NFT market dynamics and bubble behavior.

This section reviews prior work on blockchain graph analysis, focusing on ERC-20 and ERC-721 token networks and the use of the LPPL model for bubble prediction. Notable studies include Ethereum and Bitcoin transaction network analysis and early empirical work on NFTs. Few efforts explore NFT-specific bubble prediction, highlighting the novelty of this research in using LPPL for a single collection.

This methodology section explores NFT ownership trends and decentralized dynamics, revealing that most owners hold few tokens while some addresses own thousands, typically for financing or automated purchases. It identifies a Zipfian token distribution and highlights the unique roles and significance of different NFT collections, such as Ethereum Name Service (ENS).

Spring Cloud Gateway is a modern, non-blocking API gateway that offers significant improvements over its predecessor, Netflix Zuul. While transitioning from Zuul to Spring Cloud Gateway requires effort, it provides a more robust and scalable solution for microservice architectures

The article discusses the effective use of the @Transactional annotation in Spring, focusing on solving concurrency issues in microservices. The article emphasizes the need to understand and properly implement transactions in distributed systems to maintain data consistency and integrity

DMCC and REIT Development announce construction of 17-storey Crypto Tower. Tower to support DMCC’s rapidly growing community of blockchain, DeFi and Web3 companies. Over 150,000 square feet of leasable space, including nine office floors, three dedicated floors for blockchain incubators, an AI innovation floor, a crypto club, gold bullion shop and vault storage area.

How are you, hacker? 🪐 What’s happening in tech today, January 16, 2025? The HackerNoon Newsletter brings the HackerNoon homepage straight to your inbox. On this day, Prohibition went into effect in the United States in 1920, Space Shuttle Columbia disintegrated upon re-entry in 2003, First Youtube video was posted ...

Bitcoin has good SoV and MoE functions. But it needs a semblance of intrinsic value. To maximize the SoV function, Bitcoin Maximalists have a term called 'Hodling', To maximize MoE, we need 'Hodl-Building'. We could Hodl now and Build now, or Build much later. Either way, Bitcoin will transform economics and the planet's tech landscape. It will also align AI towards maximum pro-human utility.

1. United States 2. India 3. China 4. United Kingdom 5. Japan 6. Germany 7. Brazil 8. Canada 9. France 10. Pakistan

Dr Sabine’s new video is a logical tome, and I couldn’t quite grasp it. Meanwhile, I had a bone to pick with the way maths is taught in High Schools. It is mostly boring, generic, and useless, yet kids are interested in TikTok videos (geo-political squabbles be damned). Perhaps this is the reason why we aren't making much progress in high-level physics, nor much...

Welcome to HackerNoon Startups of the Week! Each week, the HackerNoon team showcases a list of startups from our Startups of The Year database. All these startups have been nominated as one of the best in their respective category or region. This week, we’re pleased to bring you Super Duper Studios, Bokonzi, & Kuenha.

5 years ago I sold my WordPress plugin business to Automattic. Back then the landscape of software entrepreneurship was markedly different than it is today. Today, the game has changed: Distribution has become the new moat.

This guide walks you through creating a Python-based currency converter app with a GUI using Tkinter. You'll learn to fetch real-time exchange rates via an API, handle user input, and design a simple interface for seamless currency conversion.

Private method collisions in parent-child classes can lead to bugs and code smells. Avoid this by maintaining clear naming, avoiding overlap, and following clean code practices.te methods in parent classes with names that child classes can use.

Obyte is a decentralized app that lets users control their own money. The Obyte wallet includes a built-in private chat system that allows users to connect securely. You can use it to message contacts or interact with chatbots for tasks like getting information.

How are you, hacker? 🪐Want to know what's trending right now?: The Techbeat by HackerNoon has got you covered with fresh content from our trending stories of the day! Set email preference here. By @journalistic [ 4 Min read ] Intel shares have dropped approximately 60% over the past three years. Read More. Welcome t...

In this section, we provide a proof of the slow growth law and provide some hitherto unobserved consequences of the result.

Gennady Dmitrik is a skilled tech entrepreneur, founder of multiple startups, and a visionary developer of mobile applications in the FinTech area. With over 20 years of experience in software development, he has created more than 15 innovative apps. Gennady’s latest venture in FinTech aims to revolutionize trading terminals.

How are you, hacker? 🪐 What’s happening in tech today, January 15, 2025? The HackerNoon Newsletter brings the HackerNoon homepage straight to your inbox. On this day, Henry VIII declared himself the head of the Church of England in 1535, Flight 1549 made an emergency landing on the Hudson River in 2009, Boston Molas...

The Spacecoin Writing Contest by Spacecoin and HackerNoon is the perfect chance to win money by writing about the things you love: sci-fi, space tech, and space exploration.

Open unveils the #WEBisOpen Point System, rewarding users with $OPEN points for ecosystem engagement. From DeFi AI agents to decentralized science, Open's OVM powers transparent, scalable, and innovative blockchain solutions. Visit webisopen.com for updates on this transformative AI infrastructure.

NHIcon 2025 will provide technical insights and practical guidance to address the challenges of securing non-human identities, such as service accounts, AI agents, and other software workloads. The agenda also includes a keynote from Talha Tariq, chief security officer at HashiCorp, on zero-trust principles for non- human identities. Gartner® naming machine identity management a top security trend for 2025.

Sweet Security launches patent-pending Large Language Model (LLM) powered cloud detection engine. Engine can identify previously undetectable threats. Engine is capable of uncovering zero-day attacks and "unknown unknowns"

What were the Top 10 categories that grabbed more attention than the others? Well, you’re about to find out. 

Czech cybersecurity startup Wultra has raised €3 million from Tensor Ventures, Elevator Ventures, and J&T Ventures. The investment comes as global concern grows over the vulnerability of traditional security methods. Quantum computers will soon have the power to crack cryptography that protects billions of transactions daily.

In 2024, WEEX concluded the year with exceptional achievements and impressive growth. WEEX offers over 1,500 trading pairs, multilingual support, top-tier liquidity, advanced security measures, and user-friendly trading tools. The WEEX platform token WXT skyrocketed by 101.03% within 24 hours, hitting a historic high of $0.0339.

MEXC has successfully completed its Q4 2024 MX Token Buyback and Burn program, eliminating 3.39 million tokens valued at over $12 million. This burn reduces the total MX Token supply by 3.5%, demonstrating MEXC's ongoing commitment to enhancing token value and strengthening its ecosystem.