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FocusTechnica

Improved Zinc-Air Battery Performance With Solar Power

Prospects to leverage overcoming the limitations of ‘zinc-air batteries’, promising next-generation batteries. Developed bifunctional electrocatalyst with staggered p-n heterojunction applying solar cell/semiconductor interface characteristics. Zinc-air…

Methane Plumes Detected Over Poland’s Coal Mines

This Copernicus Sentinel-2 image shows us Rybnik, located southwest of Katowice, with several coal mines visible in the nearby surroundings. Credit: Contains modified Copernicus Sentinel…

Will Apple build its own blockchain?

Hello readers, and welcome back! Last week, I wrote about the issues facing Axie Infinity in the wake of a $625 million heist. This week,…

Elon Musk, dual-class shares, and who owns the future

Welcome to The TechCrunch Exchange, a weekly startups-and-markets newsletter. It’s inspired by the daily TechCrunch+ column where it gets its name. Want it in your inbox every Saturday?…

Disinformation demands a collective defense

Lisa Kaplan Contributor Lisa Kaplan is the founder and CEO of Alethea Group, a technology company that detects and mitigates instances of disinformation, misinformation and…

Is social media (re)traumatizing you?

Drew Olanoff Contributor Drew is a geek who first worked at AOL when he was 16 years old. Previously a senior writer at TechCrunch, he…