GamingChairModel

joined 2 years ago
[–] GamingChairModel@lemmy.world 2 points 13 hours ago (1 children)

There are lots of benefits to using base 12 for measurements.

12 is better than 10, I'll give you that. But 100 is better than 144, and 1000 is way better than 1728.

And that doesn't even get to 0.1 versus 1/12, or 0.01 versus 1/144.

So 12 might be a better standalone number, but it's a terrible base to work in.

Fahrenheit today is literally defined through Celsius

The same as pretty much every unit they use

At this point, that's basically every unit other than the seven fundamental units. Degrees Celsius is defined from the fundamental unit Kelvin.

Plus the actual definitions of those fundamental units were defined based on historical measurements tied to former definitions. Today the second is defined around the frequency of the cesium-133 atom, but it was traditionally measured as 1/(60 x 60 x 24) of the time of a single rotation of the earth, which stopped serving us when we realized the rotations had too much variation between days. The meter is currently defined around the speed of light and the second, but was previously defined in terms of what they thought the Earth's circumference was, and then a metal bar they kept in Paris, then based on the wavelength of light emitted from a transition in krypton-86. Same with the kilogram, currently kept at Planck's constant but previously based on a particular chunk of metal that was mysteriously losing mass over time, and before that defined from the density of 4°C water and the definition of the meter.

Conventions are important. The history of how we got to particular conventions can often be messy.

Or, if the app has the private key for decryption for the user to be able to see the messages, what's stopping the app from copying that decrypted text somewhere else?

The thread model isn't usually key management, it's more about the insecure treatment of the decrypted message after decryption.

[–] GamingChairModel@lemmy.world 18 points 5 days ago

JPEG Organisation?

The G in JPEG already stands for "Group."

Ok, first off, a lion…swimming in the ocean? Lions don’t even like water. If you placed it near a river, or some sort of fresh water source, that’d make sense. But you find yourself in the ocean, a 20 ft wave, I’m assuming it’s off the coast of South Africa, coming up against a full grown, 800 lb tuna with his 20 or 30 friends. You lose that battle. You lose that battle nine times out of ten. And guess what, you wandered into our school of tuna and we now have a taste of blood! We’ve talked to ourselves. We’ve communicated and said, “you know what? Lion tastes good. Let's go get some more lion.” We’ve developed a system, to establish a beachhead and aggressively hunt you and your family. And we will corner your, your pride, your children, your offspring…”

How ya gonna do that?

We will construct a series of breathing apparatus with kelp. We will be able to trap certain amounts of oxygen. It's not going to be days at a time, an hour, hour 45. No problem. That will give us enough time to figure out where you live, go back to the sea, get more oxygen and then stalk you. You just lost at your own game. You are out gunned and outmanned.

[–] GamingChairModel@lemmy.world 13 points 6 days ago (1 children)

The only solution is to train LLMs on more 4chan content, surely there will be no side effects from that.

[–] GamingChairModel@lemmy.world 4 points 1 week ago (1 children)

Using space elevator technology (metal structural beams and metal guy cables) I think we can get things up to 100m geosynchronous "orbit" pretty easily.

[–] GamingChairModel@lemmy.world 2 points 2 weeks ago

I'm giving some reasons why turning on or off location services at the OS level doesn't appreciably change battery life.

[–] GamingChairModel@lemmy.world 9 points 2 weeks ago (2 children)

You can turn off higher level location services at the OS level, but at the radio level the cellular network will always need a precise enough location to handle tower handoffs and timing issues between the tower and phone, as well as modern beam forming techniques where the tower "aims" the signal at the phone. The simple act of the phone communicating with a specific tower tells the phone where it is (sometimes with surprisingly high precision).

911/emergency services also use more low level location techniques, but I'm pretty sure those functions don't get called unless you dial an emergency number.

[–] GamingChairModel@lemmy.world 1 points 2 weeks ago

It's not feasible for a mass market consumer product like Starlink.

Why not? That's a service designed to serve millions of simultaneous users from nearly 10,000 satellites. These systems have to be designed to be at least somewhat resistant to unintentional interference, which means it is usually quite resistant to intentional jamming.

Any modern RF protocol is going to use multiple frequencies, timing slots, and physical locations in three dimensional space.

And so the reports out of Iran is that Starlink service is degraded in places but not fully blocked. It's a cat and mouse game out there.

[–] GamingChairModel@lemmy.world 3 points 2 weeks ago

I'd think that there are practical limits to jamming. After all, jamming doesn't just make radio impossible, it just makes the transmitter and receiver need to get closer together (so that their signal strength in that shorter distance is strong enough to overcome the jamming from further away). Most receivers filter out the frequencies they're not looking for, so any jammer will need to actually be hitting that receiver with that specific frequency. And many modern antenna arrays rely on beamforming techniques less susceptible to unintentional interference or intentional jamming that is coming from a different direction than where it's looking. Even less modern antennas can be heavily directional based on the physical design.

If you're trying to jam a city block, with a 100m radius, of any and all frequencies that radios use, that's gonna take some serious power. Which will require cooling equipment if you want to keep it on continuously.

If you're trying to jam an entire city, though, that just might not be practical to hit literally every frequency that a satellite might be using.

I don't know enough about the actual power and equipment requirements, but it seems like blocking satellite communications between satellites you don't control and transceivers scattered throughout a large territory is more difficult than you're making it sound.

[–] GamingChairModel@lemmy.world 5 points 2 weeks ago

90GB of both RAM+NAND combined. I'm guessing most of it is actual persistent storage for all the stuff the infotainment system uses (including imagery and offline map data for GPS, which is probably a big one), rather than actual memory in the sense of desktop computing.

 

Curious what everyone else is doing with all the files that are generated by photography as a hobby/interest/profession. What's your working setup, how do you share with others, and how are you backing things up?

view more: next ›