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What Are Traces and Spans in OpenTelemetry?

Metrics tell you what changed. Logs tell you why something happened. Traces tell you where time was spent and how a request moved across your system. At the heart of distributed tracing in OpenTelemetry are two core concepts: Trace : The full journey of one request / transaction across services. : The full journey of one request / transaction across services. Span: A timed unit of work inside that journey (function call, DB query, external API call, queue processing, etc.). This guide walks

Google's AI Live Translation and Learning Tools Are Here. How to Use Them

Google Translate is getting an AI upgrade designed to make real-time conversations and language learning easier. The update is rolling out this week in the Translate app on iOS and Android. The first tool, for live translations, lets you have a back-and-forth conversation with someone by surfacing audio and text translations as you speak, so you can easily follow along. Advanced Gemini models allow for support of more than 70 languages, including Arabic, French, Hindi, Korean and Spanish. Googl

The ROI of Exercise

The ROI of exercise 22 Aug, 2025 I workout 4 days a week and I love it. It's the foundation of my morning routine, following spending 45 minutes drinking coffee on the couch and watching the sun come up with Emma. I've been doing this for a few years now and while I struggled (as everyone does) in the beginning, I can't imagine not exercising in the morning now. On the rare occasion that I do skip a workout, I feel it missing throughout the day as a lack of vitality and less mental clarity.

Peloton pivots to wellness alongside another layoff

is a senior reporter focusing on wearables, health tech, and more with 13 years of experience. Before coming to The Verge, she worked for Gizmodo and PC Magazine. Peloton has pivoted many times over the past few years in its quest to return to profitability. The latest, as announced in its Q4 2025 earnings call, is leaning into health and wellness instead of “just” cardio fitness. “With each passing year, we are coming to understand better the importance of strength, stress management, sleep,

Spain arrests hackers who targeted politicians and journalists

The Spanish police have arrested two individuals in the province of Las Palmas for their alleged involvement in cybercriminal activity, including data theft from the country's government. The duo has been described as a "serious threat to national security" and focused their attacks on high-ranking state officials as well as journalists. They leaked samples of the stolen data online to build notoriety and inflate the selling price. "The investigation began when agents detected the leakage of p

Build a Sentence-Level Text-to-Speech Reader in JavaScript

In this article, we’ll build a simple web tool to explore how Text-to-Speech (TTS) works in JavaScript. We’ll also dive into the logic of sentence-level highlighting. These two features are often combined to create accessible, dynamic reading experiences in the browser. We’ll go step-by-step: Learn how TTS works in the browser Explore how to highlight sentences dynamically Build a working mini tool with HTML, CSS, and JavaScript (Demo & Code) 📢 What is TTS in the browser? JavaScript provides

DHEA-S hormone linked to shorter lifespan in men, but not women

This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility: Credit: Pixabay/CC0 Public Domain A new genetic study suggests that higher levels of the hormone dehydroepiandrosterone sulfate (DHEA-s) are associated with a shorter lifespan in men, but show no significant effect on the lifespan of women. The research, led by CUNY SPH Professor Mary Schooling, used a Mendelian ra