Month: May 2025

Tesla hat die Produktion des Range Extenders für seinen Cybertruck aufgegeben. Offenbar lohnt sich die Produktion nicht. (Tesla Cybertruck, Elektroauto)

Die eigene Fitness hat man mit einem Aktivitätstracker stets im Blick. Die Google Fitbit Charge 6 ist bei Amazon jetzt im Preisrutsch. (Google, Wearable)

Es gab bisher wenig konkrete Aussagen der Netzbetreiber zu 6G in Europa. Nun fordern alle zusammen den oberen Teil des 6-GHz-Spektrums. (6G, Telekom)

Die erstmals erstellte Überwachungsgesamtrechnung ergibt mehrere Tausend Befugnisse für die Sicherheitsbehörden. Ein Bericht von Friedhelm Greis (Überwachung, Vorratsdatenspeicherung)

Windgeräusche können vor allem in E-Autos stören. In Windkanälen testen Autofirmen die Aerodynamik und -akustik. Wir waren im VW-Windkanal. Ein Bericht von Dirk Kunde (Elektroauto, Tron)

Automatisierte Prozesse gehören zum Fundament einer stabilen IT-Infrastruktur. In diesem Workshop wird vermittelt, wie Linux-Systeme durch Shell-Skripte effizienter gesteuert und wiederkehrende Aufgaben sicher automatisiert werden. (Golem Karrierewelt, Linux)

The world has been abuzz for weeks now about the inclusion of a journalist in a group message of senior White House officials discussing plans for a military strike. In that case, the breach was the result of then-National Security Advisor Mike Waltz accidentally adding The Atlantic Editor-in-Chief Jeffrey Goldberg to the group chat and no one else in the chat noticing. But what if someone controlling or hacking a messenger platform could do the same thing?

When it comes to WhatsApp—the Meta-owned messenger that’s frequently touted for offering end-to-end encryption—it turns out you can.

A clean bill of health except for ...

A team of researchers made the finding in a recently released formal analysis of WhatsApp group messaging. They reverse-engineered the app, described the formal cryptographic protocols, and provided theorems establishing the security guarantees that WhatsApp provides. Overall, they gave the messenger a clean bill of health, finding that it works securely and as described by WhatsApp.

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Over the last century or more, humanity has been developing an ever-growing list of chemicals that have never been seen by Earth's creatures. Many of these chemicals end up being toxic contaminants that we'd love to get rid of, but we struggle to purify them from the environment or break them down once we do. And microbes haven't had much chance to evolve the ability to break them down for us.

Over the last few years, however, we've found a growing number of cases where bacteria have evolved the ability to break down industrial contaminants and plastics. Unfortunately, these bacteria are all different species, target different individual contaminants, and thrive in different environments. But now, researchers have developed a new way to take the genes from all these species and place them in a single bacterial strain that can decontaminate complex waste mixtures.

Targeting contaminants

The inspiration for this work was the fact that a lot of industrial contamination contains a mixture of toxic organic molecules, but is found in brackish or salty water. So, the research team, based in Shenzhen, China, started by simply testing a number of lab strains to determine the ability to survive these conditions. The one that seemed to do the best is called Vibrio natriegens. These bacteria were discovered in a salt marsh, and their primary claim to fame is an impressive growth rate, with a population being able to double about every 10 minutes.

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Over the last century or more, humanity has been developing an ever-growing list of chemicals that have never been seen by Earth's creatures. Many of these chemicals end up being toxic contaminants that we'd love to get rid of, but we struggle to purify them from the environment or break them down once we do. And microbes haven't had much chance to evolve the ability to break them down for us.

Over the last few years, however, we've found a growing number of cases where bacteria have evolved the ability to break down industrial contaminants and plastics. Unfortunately, these bacteria are all different species, target different individual contaminants, and thrive in different environments. But now, researchers have developed a new way to take the genes from all these species and place them in a single bacterial strain that can decontaminate complex waste mixtures.

Targeting contaminants

The inspiration for this work was the fact that a lot of industrial contamination contains a mixture of toxic organic molecules, but is found in brackish or salty water. So, the research team, based in Shenzhen, China, started by simply testing a number of lab strains to determine the ability to survive these conditions. The one that seemed to do the best is called Vibrio natriegens. These bacteria were discovered in a salt marsh, and their primary claim to fame is an impressive growth rate, with a population being able to double about every 10 minutes.

Read full article

Comments

Multitasking on a phone has never been a great experience. While modern mobile operating systems offers tools for quickly switching between apps or even viewing multiple apps in a split-screen mode, the relatively small displays on phones make it hard to offer a true desktop-like experience with floating windows that can be moved and resized. […]

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