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Comment Re:Home Assistant is awesome (Score 1) 33

I want one that works without crushing my CPU.
Via Amazon I bought a highly recommended 'V3 R860 RTL2832U' branded by RTL-SDR.com for $40 in 2022. https://www.amazon.com/gp/prod...

Lots of articles of it running on a Raspberry Pi.
Tried it on two Raspberry Pi 4, running various software and different OS's: unbearably slow, basically unresponsive.
Tried it on two of my desktop Ubuntu boxes, it was usable but of the applications needed to run it only two would work consistently.
Then I see several posts here saying these things are magic, but no links to real devices with any info about what software they use or what king of computer is hosting the dongle.

Submission + - SPAM: Importance of Biostatistics in Clinical trials.

Submitted by chrisbenson
chrisbenson writes: Biostatistics is the branch of statistics that deals with the data. Applied in many areas of biology, epidemiology, medical science, pharmaceutical analysis, environmental science, etc., biostatistics has been helping researchers analyze in many fields like healthcare, medical research, clinical management, etc. Before any drug gets approval, it undergoes some clinical trials, and that’s when biostatistics is applied to test its efficiency and quality.
Link to Original Source

Submission + - Saudi Arabia 'Forced To Scale Back' Plans For Desert Megacity (theguardian.com)

Submitted by Anonymous Coward
An anonymous reader writes: It was billed as a glass-walled city of the future, an ambitious centerpiece of the economic plan backed by Crown Prince Mohammed bin Salman to transition Saudi Arabia away from oil dependency. Now, however, plans for the mirror-clad desert metropolis called the Line have been scaled down and the project, which was envisaged to stretch 105 miles (170km) is expected to reach just a mile and a half by 2030. Dreamed up as a linear city that would eventually be home to about 9 million people on a footprint of just 13 sq miles, the Line is part of a wider Neom project. Now at least one contractor has begun dismissing workers. The scaling down of Prince Mohammed’s most grandiose project was reported by Bloomberg, which said it had seen documents relating to the project.

Submission + - Textbook Prices Have Increased by 1401% Over Last 50 Years (myelearningworld.com) 1

Submitted by LookMan
LookMan writes: Over the last 50 years, the cost of college textbooks has soared by a jaw-dropping 1401%, transforming what was once a manageable expense into a significant financial burden for students across the United States.

This staggering increase, which has seen textbook prices grow at nearly 3 times the rate of inflation, is more than just a statistic—it’s a barrier to education and a source of stress for millions of students trying to pay the already exorbitant costs of higher education.

Submission + - New charger could double the service-life of Li-Ion batteries 1

Submitted by NewtonsLaw
NewtonsLaw writes: Lithium-Ion (LI) batteries are the backbone of much of our modern technology. They're in our phones, our laptops, our smartwatches and even the EVs that are increasingly appearing on our roads. One of the problems with LI technolgy however, is the very finite life of those batteries.

In the case of an EV, the battery pack represents a very significant portion of the total price you pay when buying one. Right now, the life of EV batteries is generally considered to be at least eight years, under normal use. But what if that could be doubled — simply by changing the way those batteries are charged?

This announcement by researchers in Europe indicates that the service life (ie: the number of charg/discharge cycles) of LI batteries could be as much as doubled, through the use of a pulsed current charging technology.

The standard charge method for LI cells is to deliver a constant direct current (DC) until the voltage of the cell rises to around 4.2 volts, at which time the voltage is maintained at a constant level and the charge current allowed to fall off. Once the charge current reaches a predefined minimum level, the cell is considered charged.

The new pulsed current method does not use DC but instead opts to recharge by way of intermittent pulses of current. This is not a new charging technology although it's not the norm for LI cells. Pulsed current chargers have been used on older chemistries such as nickel-cadmium in order to reduce/eliminate the formation of dendrites that would otherwise create short-circuits or significantly increase the self-discharge rate. Applying this tech to recharging LI cells seems to be a significant game-changer, if the lab results are duplicated in "the real world (TM)"

Doubling the life of your EV's battery or even your smartphone's battery is no small thing.

Submission + - Oregon shutting down small farms to protect the environment

Submitted by Anonymous Coward
An anonymous reader writes: Small Farms in Oregon Suffer as New CAFO Definitions Threaten Livelihoods
In Oregon, the landscape of small-scale farming is undergoing a seismic shift due to recent regulatory changes affecting water rights and farm operations. These changes are casting a shadow over the future of family farms and local agriculture, invoking a series of legal challenges and widespread concern among the farming community.

At the core of the upheaval are two contentious issues: the expanded definition of Concentrated Animal Feeding Operations (CAFOs) and stringent water usage restrictions. These regulations have placed an undue burden on small farmers, many of whom are now facing the threat of closure due to what they view as overreaching government intervention.

Comment Disjointed space rock: Wost Band Ever (Score 1) 34

by drainbramage (#64273524) Attached to: NASA's Crash Into an Asteroid May Have Altered Its Shape

Okay I'll bite, if these are "disjointed" rocks and dust that are not a single big solid scary planet killer then why worry about us breaking it up?
From the description the thing is a bunch of broken parts.
Wouldn't these parts separate on their own once they get too close to an Earth size object and also suffer from more fragmentation from any interaction with an atmosphere?
I'm just asking cause I have no idea at all, maybe the XKCD could explain it which reminds me that I haven't checked XKCD for a long time.
Ha! I just checked, it's Goodhart's Law: https://xkcd.com/2899/

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