jdnewmil
@jdnewmil@lemmy.ca
- Comment on Why is amperage more "obscure" than voltage (or watts)? 1 week ago:
And the smoke. When you let the smoke out it stops working.
- Comment on Why is amperage more "obscure" than voltage (or watts)? 1 week ago:
Batteries have both electron capacity (cumulative) and current capacity (rate) ratings. The chemistry and size determine how many electrons (aka Amperes times hours) can be stored, and the conductor sizes (including within the cells) determine how quickly it can be charged or discharged in sustained operation (without permanent damage).
A car battery can be shorted with a screwdriver and discharged at a high current, but only for a short time without damage to the cells. A 100Ah car battery can supply rated current for roughly twice as long as a 50Ah battery.
Sometimes people call these ratings energy and power ratings by multiplying each by rated voltage, but the voltage does vary with charge state and rate of current flow so those “ratings” are rather approximate.
- Comment on I have a rasberry pi 5 collecting dust, what are some neat useful things i can do with it? 1 week ago:
Pihole comes with DHCP disabled by default for this reason. But you still have to get the router to hand off the Pihole IP as DNS server to all dynamic IP devices.
- Comment on I have a rasberry pi 5 collecting dust, what are some neat useful things i can do with it? 1 week ago:
DHCP != DNS. DHCP allows you to mix pseudo-static IP addresses with dynamic IP addresses on your LAN, while DNS looks up IP addresses based on names. DHCP, or the equivalent IP address management GUI, is innocuous… you probably want to use it to specify what static IP you want the Pi to have… but you also need to tell your router DHCP to inform your in-LAN devices that the DNS server they should use is that same static IP when it hands out their assigned IP address.
- Comment on Save as PDF 2 weeks ago:
For those not in the know… PDF is a particular set of conventions for delivering peograms written in a programming language called “Postscript”, and like all programs they can be hijacked to trigger unexpected results, including the delivery of software viruses. And yes, while those programs run in “sandboxes” that are supposed to prevent propagation of harm, such environments can fall in that purpose due to creative triggering of imperfections in the sandbox code by the “contained” Postscript code.
Hence, quotes are used to convey lack of trust in the claim of safety.
- Comment on PLEASE 2 months ago:
Darwinism?
- Comment on THIS is a real test of how old you are. If you score 20 your future is short 2 months ago:
I never had my own AOL email account but I did throw away AOL signup disks and I sent email to AOL accounts… so I guess 20/20 assuming “phone bo” is a phone book.
As for not being long for this world… there are a lot of ways to go that don’t link with being old, so I guess that checks out anyway.
- Comment on Why do you hate AI? 2 months ago:
The value in LLMs is in the training and the data quality… so it is easy to publish the code and charge for access to the data (DaaS).
- Comment on Why do you hate AI? 2 months ago:
So you would click accept on my self-signed https website? Want some land in Florida?
- Comment on Lying can be so complicated 2 months ago:
Personally I would have used a sarcasm escape: /s
- Comment on Lying can be so complicated 2 months ago:
This is why they invented emoticons and emoji. On the Internet, no-one can tell you are smirking unless you tell them
- Comment on You thought it was too good to be true, but you had hope 5 months ago:
Vasectomy is like inflation… when it is zero the value we assume is described doesn’t go up or down.
- Comment on Clock logic 5 months ago:
whoosh!
- Comment on Th EU iniative for Stop Killing Games has reached the goal of 1 million signatures!! 7 months ago:
For the same reason I think software developers have the right to choose to release under copyleft, I think they have the right to release under SaaS or copyright. I don’t think it is fair to take those rights from them. (I may choose to avoid SaaS or other proprietary models where possible, but I am not pure about it… I just do so recognizing that proprietary tools are a band-aid and could become unusable when any upgrade or TOS changes.)
As one example, keep in mind that some governments may choose to punish a software developer for making “offensive” (by whatever their standards are) content, and rather than fighting a losing battle in one jurisdiction so you in some other jurisdiction can keep using that controversial software the developer may just choose to cut their losses and turn it off for everyone. If you force them to release it anyway then said punitive government may continue to hold the developer responsible for the existence of that software.
There are rights and responsibilities associated with a proprietary model… and IMO you (and your permissive government) should not be overriding those rights for your own short-sighted benefit.
- Comment on Th EU iniative for Stop Killing Games has reached the goal of 1 million signatures!! 7 months ago:
A) this issue applies to all kinds of software.
B) procuring software is a two-way street … the producer assigns terms by which access is obtained, and you agree to those terms in exchange for that access. If the software is SaaS then if the producer chooses to shut down the service then you are SOL. If the software is provided with a long list of terms via Steam, then you are basically buying SaaS with local caching and execution. Maybe don’t reward producers by agreeing to one-sided deals like SaaS?
This kind of headache is what prompted Richard Stallman to come up with the idea for the GNU license. Maybe you think that is too radical… but maybe imposing your ideas of what licensing terms should look like on (only?) game developers is radical also.
- Comment on magnum pi 8 months ago:
if it is a magnum, shouldn’t it be bigger? /s
- Comment on How Far Can We Degrade Our Hurricane Forecasting Before People End Up Dead? 8 months ago:
Sure there is. If you get dead, you don’t care about taxes, and if not, then you do. /s
- Comment on 2040 called, they want their wheelchair back 9 months ago:
Bro stair climbing wheelchair. Segway put a lot of design effort into this about 30 years ago before trying to go big with the normal Segway. www.scewo.com/en/
- Comment on copper 10 months ago:
A policeman? is that unusual?
- Comment on I miss when you could get a flagship phone that could fit in your hand 1 year ago:
As you add more compute per user interaction (“smart” features), you increase power consumption. To keep an 18hour discharge cycle, you have to have more battery. Since phone thickness is a negative marketing feature but increased screen size is a positive marketing feature, you end up with bigger phones.
Every time they reduce compute power consumption, feature inflation overtakes the gain and more power is needed over time. Try turning on battery saver in the morning… even with “normal” use the battery will last significantly longer due to disabling background power consumption.
- Comment on How the Plane and Helicopter Crash in Washington, D.C., Happened: Maps and Graphics 1 year ago:
3d trajectories. Heli was 100ft higher than it was cleared to be.
- Comment on Intruder 1 year ago:
Isn’t this basically the plot of “Home Alone” and it’s very popular sequels playing out with a firearm? With FPS games as the cultural backdrop, why is anyone shocked at this? Or is this just hand-wringing?
- Comment on How screwed would one be if their email provider shuts down? 1 year ago:
I think you meant “propagated”.
How do you monitor your email functionality? How long would it be before you noticed it was offline? What about paying for and configuring the new email server?
- Comment on How is it that "protecting basic democracy and the rule of law, and not crowning a criminal dictator" wasn't even on the chart?! 1 year ago:
Sure it is, if you don’t understand economics, which few Merkins do. The evidence is right in front of us.
- Comment on Scales that refuse to measure if the battery isn't brand new 1 year ago:
Agree. For clarity, the circuits that show the low-voltage status are much less hungry for current than the circuits that measure weight. So no, having enough battery to report low voltage does not imply that there is enough to make an accurate weight measurement.
- Comment on Calculatable 1 year ago:
Clear and Clear Entry.
The better option is to use an RPN calculator as Hewlett-Packard used to make. Then the back arrow button just eliminates one digit at a time.
- Comment on Straightforward. 1 year ago:
Published in the Journal of Improbable Research?
- Comment on Releasing everyone's SSN and the hacks used to acquire them 1 year ago:
Did anyone who up upvoted this actually follow the link and look at the script? This is a troll.
- Comment on Mermaid: Diagramming and Charting Tool 1 year ago:
I will just say that I think mermaid is great. I use it via the DiagrammeR package in R and via Quarto. In addition to manually typing in diagrams I sometimes write ad-hoc code that helps me visualize my data (and source code) by emitting one of the relevant mermaid syntaxes.
- Comment on How To Prevent Damage to Your DVDs and Blu-Rays 1 year ago: