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Starlink Plans to Send 42K Satellites Into Space. That Could Be Bad News for the Ozone

Satellites like the ones used for Starlink's internet service could be depleting the Earth's ozone layer when they're deorbited, according to a study funded by NASA and published in Geophysical Research Letters in June. 2024. When Starlink's satellites reach the end of their lives, they burn up in the Earth's atmosphere and leave behind small particles of aluminum oxide. These travel down into the ozone layer, which absorbs harmful ultraviolet radiation. Researchers from the University of South

Zone 2 Cardio: Pros, Cons and Tips From Experts

Zone 2 cardio is one of the latest trends in fitness activity that may have you questioning if it is something you should add to your routine. Here's what you'll want to know before you start. It is a low-intensity, steady-state workout that allows you to sustain effort for an extended period while primarily using fat as fuel, says Gene Schafer, a NATABOC-certified athletic trainer and NSCA-certified strength and conditioning specialist. It means working at 60 to 70% of your maximum heart rate.

How to Think About Time in Programming

How to Think About Time in Programming Date published: Jun 23, 2025 Time handling is everywhere in software, but many programmers talk about the topic with dread and fear. Some warn about how difficult the topic is to understand, listing bizarre timezone edge cases as evidence of complexity. Others repeat advice like "just use UTC bro" as if it were an unconditional rule - if your program needs precise timekeeping or has user-facing datetime interactions, this advice will almost certainly caus

Show HN: Claude Code Usage Monitor – real-time tracker to dodge usage cut-offs

🎯 Claude Code Usage Monitor A beautiful real-time terminal monitoring tool for Claude AI token usage. Track your token consumption, burn rate, and get predictions about when you'll run out of tokens. 📑 Table of Contents ✨ Features 🔄 Real-time monitoring - Updates every 3 seconds with smooth refresh - Updates every 3 seconds with smooth refresh 📊 Visual progress bars - Beautiful color-coded token and time progress bars - Beautiful color-coded token and time progress bars 🔮 Smart predictions

Dyson Has Killed Its Bizarre Zone Air-Purifying Headphones

“No, this is not an elaborate April fool”. This is how WIRED first reported on the Dyson Zone at the end of March 2022. The Zone was a wild reimagining of an established product type—a big, bulky pair of headphones with an integrated air-purification mechanism that presented rather unfortunately like a high-tech gimp mask. A solution to a problem no consumer seemed willing to acknowledge existed in the first place. Worse was to follow. December 2022: “Dyson’s hellish-looking air-purifying heads

MLB is testing robotic umpires in Spring Training, eyes 2026 implementation

Forward-looking: Major League Baseball is testing a computerized system for calling balls and strikes during spring training exhibition games. This Automated Ball-Strike System (ABS), which has been in development for four years in the minor leagues, could aid MLB home plate umpires as early as 2026. The ABS uses a network of cameras installed in stadiums to track each pitch and determine whether it crosses home plate within the strike zone. The current iteration uses Hawk-Eye pose-tracking cam