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共 35725 篇Robotics Shaping Our Future
AI and Robotics in the New Age of Industrialization Since 2025, a new era of...
Despite the darkness, I still see signs of hope in America
It's difficult to pinpoint the moment in my life where America started to lose the plot.
Best Bone Conduction Headphones (2026): Shokz, Suunto, Mojawa
Everyone needs a safe way to listen to music on outdoor runs. We’ve found the bone conduction headphones to grab on your way out the door.
Visiting the stars (and planets, and telescopes) in VR
Walkthrough experience includes visits to stars, exoplanets, and observatories.
Flock Cameras Can Surveil Cars Without License Plates
This is from a 2024 company presentation : Officers can also tap into data showing a car’s decals, bumper stickers, back and top racks—along with temporary and unique state tags. Flock calls it a “Vehicle Fingerprint” and it’s touted as a way for law enforcement officials to get more information “even when you don’t have full plate information,” the company’s presentation shows. The company gives police officers the ability to search that data as well, to “build stronger cases with less information upfront.” That includes being able to locate multiple vehicles law enforcement officials believe are moving together and what Flock calls a “multi geo search.”...
Sony already invested $34 million to repurpose its EU PlayStation disc factory
Sony is converting its PlayStation disc factory into a plant for optical microlenses.
Wing Commander IV and the FMV future that never quite was
C:\ArsGames takes a look at the time Chris Roberts more or less made a whole movie.
Microsoft filing shows how it shifts profits around to reduce its European tax bill
A new mandatory compliance report released by Microsoft shows how it declares profits in different European nations to reduce its tax bill.
Mini book: Agentic AI Architecture
In this eMag, we try to establish agentic AI architecture as a new type of software architecture that will likely dominate the industry for years to come. The articles, written by industry experts, cover various elements and aspects of agentic AI architecture. We aim to present the latest trends and developments shaping the new type of architecture as it enters the mainstream. By InfoQ
All Your Favorite Gadgets Are Getting Way More Expensive … Again
Thanks to the AI-driven chip shortage, prices for phones, computers, and consoles are sky-high—and still climbing.
7 Best Phones You Can’t Buy in the US (2026)
Avoid phone FOMO with our favorite smartphones that aren’t officially sold stateside but are available in markets like the UK and Europe.
The FDA Ruled That ZYN Pouches Are Safer Than Cigarettes. That Doesn’t Mean They’re Safe
ZYN nicotine pouches, the FDA found, can be advertised as a less-harmful option for adult smokers. But quitting all tobacco and nicotine products remains the best idea.
Oracle Quietly Halves Free Tier Ampere A1 Compute Limits with No Public Announcement
Oracle halved the Always Free Ampere A1 compute allowance from 4 OCPUs and 24 GB RAM to 2 OCPUs and 12 GB RAM with no public announcement. Support agents gave conflicting answers on whether PAYG accounts are affected. Documentation states the new limits apply to "all tenancies" while support emails say only free-tier accounts. By Steef-Jan Wiggers
The Best Ultralight Backpacking Quilts (2026): Zenbivy, REI
Lighten your pack this summer—skip the sleeping bag and carry one of our favorite ultralight backpacking quilts instead.
Day 56 – Mastering ClickHouse® AggregatingMergeTree: Build Faster Analytics with Pre-Aggregated Data
Introduction As data volumes continue to grow, running aggregation queries directly on raw datasets becomes increasingly expensive. Business dashboards, analytics platforms, and reporting systems often execute the same calculations repeatedly—such as total sales, daily active users, page views, or revenue trends. While ClickHouse® is designed to process analytical workloads at remarkable speed, repeatedly scanning billions of records still consumes valuable CPU, memory, and storage resources. This is where AggregatingMergeTree proves its value. Rather than calculating aggregates every time a query is executed, AggregatingMergeTree stores intermediate aggregation states that are merged automatically in the background. This approach allows analytical queries to read compact, pre-aggregated datasets, resulting in dramatically faster response times and reduced infrastructure costs. In this guide, you'll learn how AggregatingMergeTree works, why aggregate states matter, how to build an automated aggregation pipeline using Materialized Views, and when this engine is the right choice for your ClickHouse® workloads. What is AggregatingMergeTree? AggregatingMergeTree is a specialized ClickHouse® table engine designed to store aggregate function states instead of raw records. Unlike the standard MergeTree engine, which stores every inserted row, AggregatingMergeTree keeps partially aggregated values that ClickHouse combines during background merge operations. This significantly reduces the amount of data that must be processed when generating analytical reports. Because much of the computational work happens during data ingestion, dashboards and reporting applications can retrieve summarized information much more efficiently. Typical scenarios include: Sales reporting Website traffic analytics Financial summaries IoT sensor monitoring Business KPI dashboards Application observability metrics Why Use AggregatingMergeTree? Imagine an online marketplace processing millions of tr
Are Your GitHub Stats Worthy of a FIFA Card?
Are you a football fan? Since the FIFA hype is at its absolute peak at this moment, it is hard to...