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Cable Bacteria Are Living Batteries

news.ycombinator.com Niko Mccarty 2025-12-25 22:12:57

Under a cloudless August sky, I sailed upon an InterCity train from København station to Aarhus, an 8th-century Viking settlement that is now the second largest city in Denmark. After disembarking, I trekked toward the local university to a door marked INSTITUT FOR BIOLOGI. Upon entering, I was greeted by Ian Marshall, a lanky Australian professor with graying hair, who ushered me into his first floor laboratory. Dimly lit, the room was thick with the scent of wet earth. Large plastic buckets l

Topics: bacteria cable electrons mud sulfide
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Post SMTP plugin flaw exposes 200K WordPress sites to hijacking attacks

bleepingcomputer.com Unknown 2025-12-29 21:17:39

More than 200,000 WordPress websites are using a vulnerable version of the Post SMTP plugin that allows hackers to take control of the administrator account. Post SMTP is a popular email delivery plugin for WordPress that counts more than 400,000 active installations. It’s marketed as a replacement of the default ‘wp_mail()’ function that is more reliable and feature-rich. On May 23, a security researcher reported the vulnerability to WordPress security firm PatchStack. The flaw is now identif

Topics: email plugin post smtp vulnerable
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Best Breast Pumps (2025): Wearable, Portable, Easy to Clean

wired.com Nena Farrell 2025-12-29 18:02:00

Honorable Mentions Elvie Pump for $550: The Elvie worked just fine, but it didn’t do anything cool enough to warrant such a high price tag. I saw the same results as I had with cheaper pumps, and it didn’t have as many cool features as the similarly priced Willow 3.0. The timer feature is nice, though, as are the fridge- and freezer-ready bottles attached to the wearable pump. Medela Pump In Style for $209: This famed pump has great strength and is easy to use, but it’s not portable. We are ex

Topics: breast milk pump pumps wearable
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Samsung's Galaxy Z Flip 7 and Fold 7 Are Available Now. Here's How to Buy

cnet.com See Full Bio 2025-12-30 20:57:00

Our expert, award-winning staff selects the products we cover and rigorously researches and tests our top picks. If you buy through our links, we may get a commission. How we test phones Samsung's Galaxy Z Flip 7 and Fold 7 Are Available Now. Here's How to Buy You can still score trade-in offers to knock down the price.

Topics: available award buy commission cover
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Nullable but not null

news.ycombinator.com Unknown 2025-12-30 23:22:02

When working on backend applications, especially those with evolving database schemas, it’s common to see a recurring pattern: A new field is added to a model. To avoid locking the table during the migration, the field is added as nullable. The application logic is updated to start filling in this field. A backfill job runs to populate the existing records. The field is left as nullable. People often forget the final step which is updating the schema to make the field non-nullable once the dat

Topics: field model nullable schema total_rows
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CNET Survey: 64% of People Still Don't Want a Foldable Smartphone

cnet.com See Full Bio 2025-12-31 03:06:00

Foldables have been a staple of the smartphone release cycle for years now, with products from companies like Samsung, Motorola and Google. Despite the refreshingly unique form factor in a sea of mobile uniformity, the vast majority of consumers still aren't sold. According to a CNET survey, 64% of respondents say they aren't willing or interested in buying a foldable smartphone in the next year, while just 13% say they are. An additional 20% aren't sure if they want a foldable and only 3% say

Topics: foldable like make samsung smartphone
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Fire TV feeling slow? I changed these 10 settings to dramatically improve the performance

zdnet.com Elyse Betters Picaro 2025-12-31 14:26:00

Why is my Fire TV running so slow? That's a complex question to answer. It could be the age of your device. Older hardware might struggle to load the latest apps and services. But it could also be a combination of outdated software, too many background processes, and accumulated temporary files. All these things can make your Fire TV or Fire TV Stick lag. Fortunately, the tips above address most of these problems. Are there any other Fire TV features I can disable? Amazon's Fire TV has a surp

Topics: apps data disable slow tv
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nullable but not null

news.ycombinator.com Unknown 2025-12-31 17:22:02

When working on backend applications, especially those with evolving database schemas, it’s common to see a recurring pattern: A new field is added to a model. To avoid locking the table during the migration, the field is added as nullable. The application logic is updated to start filling in this field. A backfill job runs to populate the existing records. The field is left as nullable. People often forget the final step which is updating the schema to make the field non-nullable once the dat

Topics: field model nullable schema total_rows
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Google invests in carbon dioxide battery for renewable energy storage

engadget.com Unknown 2026-01-01 04:00:45

Google has announced that it has signed a global commercial partnership with Milan-based startup Energy Dome and has also invested in its long duration energy storage (LDES) tech for renewable energy. The deal, its first investment in LDES tech, entails using Energy Dome's carbon dioxide battery for the grids that power Google’s operations around the world. Batteries are used to keep excess energy generated by renewable sources, such as solar and wind, during peak production and when demand is l

Topics: batteries dioxide dome energy renewable
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The Galaxy Z Fold 7 might be thinner than claimed, but there’s bad news for rivals

androidauthority.com Unknown 2026-01-01 23:06:05

C. Scott Brown / Android Authority TL;DR A Korean study has revealed that the Galaxy Z Fold 7 is thinner than actually claimed. The study also found that other recent book-style foldables were thicker than advertised. This comes after reports that the Galaxy Z Fold 7 was thinner than the HONOR Magic V5, which claims to be the thinnest foldable. HONOR says the Magic V5 is the world’s thinnest foldable phone, but the company uses a dubious measurement method to make this claim. Now, a Korean s

Topics: claimed fold foldable phones thicker
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Why I recommend this tablet for kids over the iPad - especially at this price

zdnet.com Maria Diaz 2026-01-02 02:45:14

ZDNET's key takeaways The Fire HD 10 Kids Pro tablet is available for $190. Designed for older children aged six to 12, this kids' tablet features a slimmer design, better performance, strong parental controls, and a free screen repair or replacement within two years of purchase. While it's better than other Amazon Fire Kids tablets, the Fire HD 10 Kids Pro tablet doesn't outperform an iPad -- but it's also a fraction of the iPad's price. $189.99 at Amazon What makes a good tablet? It's easy

Topics: 10 amazon hd kids tablet
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Can Amazon finally make AI wearables happen? This buzzy new device could be its best bet

zdnet.com Sabrina Ortiz 2026-01-02 02:00:16

Sabrina Ortiz/ZDNET If you have ever used an AI transcription service for meetings, calls, lectures, or more, you know how good the technology is at capturing every detail of a conversation and converting it into text. Now, imagine a world where you could access an AI-generated transcription of every real-world interaction you have. Enter the Bee AI wearable. On Wednesday, Bee CEO Maria de Lourdes announced via LinkedIn that Bee is joining Amazon. The concept behind Bee is simple: a $49 wristb

Topics: ai bee day product wearable
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OpenAI confirms ChatGPT Agent is now rolling out for $20 Plus users

bleepingcomputer.com Unknown 2026-01-02 18:59:14

ChatGPT Agent is now rolling out to users with $20 Plus subscription, but OpenAI warns that it will take a few days for the rollout to finish. ChatGPT Agent is already available for those with $200 Pro subscription, but what exactly is the 'Agent' mode? With Agent, ChatGPT can now do work for you using its own computer. This includes handling complex tasks from start to finish. As OpenAI noted in a press release, Agent mode allows GPT to handle requests like “look at my calendar and brief me

Topics: agent available chatgpt deck mode
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After Years of Promises, Tesla Says Its Cheaper Car Is Actually on the Way

gizmodo.com Luc Olinga 2026-01-02 23:13:29

For nearly a decade, it has been the holy grail for Tesla fans and the key to its mainstream future: a truly affordable electric car for the masses. After years of promises, delays, and speculation, the company confirmed on Wednesday that the long-awaited cheaper Tesla is finally moving from myth to reality. In its Q2 2025 earnings release, Tesla stated, “We continue to expand our vehicle offering, including first builds of a more affordable model in June, with volume production planned for the

Topics: affordable car model musk tesla
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