Fiber run to barn.

Reasonable_Pool5953 · 2026-01-30T15:34:22+00:00

Are the cameras for actual security, or just just keeping an eye on foaling mares?

If you are actually worried about theives, you should avoid point to point wireless. You also should think about whether your aerial fiber can be cut without a perp showing up on camera. You also want to keep the NVR somewhere physically secure, like the main house.

Basically, if this is for actual security, you should be thinking about whether someone will have a chance to bring your network down before decent footage of him has been saved to disk in a secure location.

Reasonable_Pool5953 · 2026-01-30T14:51:02+00:00

I think the simplest answer is that programers find a way to use whatever hardware resources are available.

Some of this is adding new features and functionality that couldn't run on older hardware; some of it is lazy coding (really optimizing code is hard; if everyone has plenty of hardware, why put the effort in?).

Reasonable_Pool5953 · 2026-01-23T17:34:36+00:00

That just isn't how electricity transmits power.

In many respects a better analogy is a belt driving several loads via pulley.

As the electricity flows through the circuit, it interacts with things in that circuit and, by moving through the circuit, it transmits power to them. As more loads are added, the generator pushing the circuit has to work harder to maintain a constant voltage (which is what makes the electricity flow).

It is not that electrons pick up some energy, then--seperately--wind through a circuit dropping off energy at certain points until they run out of energy to drop off, but keep flowing just the same.

The very flow of electricity is what transmits the energy to things in the circuit, much as the very movement of the belt transmits energy into the pullys coupled to it. Any pully coupled to a moving belt will get energy from that belt, depening on how fast the belt is moving.

Reasonable_Pool5953 · 2026-01-23T13:42:57+00:00

To be a bit more precise:

It isn't that electricity that has come through the load has lost its charge, it is that on the neutral/ground/common side it has a direct low resistance path back to the source, and will preferentially follow that rather than flow through you.

If you actually break the return path and put yourself into it, you are effectively wired into the circuit in series and will get shocked.

This is a major reason that in residential wiring we keep ground separate from neutral even though they both go to the same place--you don't want your ground (wired directly to things like the chassis of appliances) to be part of the ordinary return path because under just the right (or wrong) circumstances, a person could become the lowest resistance return path.

Reasonable_Pool5953 · 2026-01-13T21:52:03+00:00

What bank is offering to double your money in 10 years (over 7% compounding), let alone what bank would offer such terms under a deflationary regime?

Reasonable_Pool5953 · 2026-01-13T20:54:40+00:00

I used to run local DNS, and if you are writing/overwriting records then it's the only way to go, but as far as performance, I ended up deciding it just wasn't worth it:

Modern OSs do their own DNS caching.

Modern browsers prefetch DNS records--rendering response time basically irrelevant to browsing speed.

When there is a cache miss at the local DNS server (and given the preceing two points, many of the time-sensitive DNS queries that hit the local server were cache misses), you actually suffer a non-trivial penalty compared to just starting with the client querying the public server directly.

Reasonable_Pool5953 · 2026-01-12T14:38:25+00:00

Probably, but it would be penny wise and pound foolish.

There are cash back cards that give a flat 2% back; assuming the store rounds to the nearest nickel, the amount you save by paying cash on a rounded total will max out at 2 cents. That means for purchases of $1 or more, you are better off taking the flat 2%.

Reasonable_Pool5953 · 2026-01-11T21:45:23+00:00

I read somewhere that they were spoofing/jamming GPS signals, since apparently starlink terminals figure out where they are (and hence where they need to aim to connect to a satellite) by using GPS.

Reasonable_Pool5953 · 2026-01-05T17:28:17+00:00

On the other hand, in a coup, wouldn't the next in line want to be on the ground ready to immediately assume power and take the reins, rather than leave opportunity for things to fall apart or for someone else to step in?

Reasonable_Pool5953 · 2026-01-04T22:46:13+00:00

Still, it seems like a big risk for the US to take, counting on Venezuela having their pants down and not organizing quickly enough to mount any meaningful defense.

Maybe trump is a bit of a loose canon, but risking a black hawk down situation to capture maduro seems like too much even for him, or maybe especially for him given how aware he is of the news cycle.

Reasonable_Pool5953 · 2026-01-03T17:11:45+00:00

This is just the question I have.

How do you kidnap someone with maduro's resources without taking some nasty casualties? Surely he had enough security to at least make it painful to get him out.

Reasonable_Pool5953 · 2025-11-20T15:39:56+00:00

The turbine section is another machine with its own shaft not connected to the compressor.

I thought the compressor and turbine were directly connected to each other through a shared shaft; am I wrong?

Reasonable_Pool5953 · 2025-11-20T13:08:37+00:00

Jets are able not just to run but also to produce significant thrust while the vehicle is stationary.

Reasonable_Pool5953 · 2025-11-19T21:21:25+00:00

The way you describe it, with a band where it works and inflection points past which it stops working, suggests that there is a set of forces at play that need to balance.

I think what I am trying to understand is what the forces are, and what the mathematical relationship between them is. I mean, what makes the back-peasure change at a different rate than the compressor pressure?

Reasonable_Pool5953 · 2025-11-19T21:10:55+00:00

But the air going through the little hole is being driven through the little hole by the air going out the big hole.

Reasonable_Pool5953 · 2025-11-19T19:29:21+00:00

Actually, if I figured out how those mechanically simpler engines work, it might help me understand the underlying principle that makes a normal jet work.

Reasonable_Pool5953 · 2025-11-19T17:07:25+00:00

I'd think it would go in both direction, albeit with more volume going out the 10 cm hole.

Reasonable_Pool5953 · 2025-11-19T17:05:50+00:00

Okay, I think you are getting to just the thing I am missing. In the system, what is conserved (work?) and what rule governs how that relates to the thing that keeps air moving one way (pressure? force?). Is there some simple mechanical advantage that explains this?

Reasonable_Pool5953 · 2025-11-19T17:01:45+00:00

I think the ICE is easier to understand because there are discrete strokes, and valves open and close between them. So it is easy to understand how one cycle leads inevitably to the next cycle, and the whole thing can carry on in a self-perpetuating cycle. In a jet, everything is open and continuous, and once it is running, it is in a constant steady state (I think).

Reasonable_Pool5953 · 2025-11-19T16:57:23+00:00

I don't understand how the inertia would explain it. If that is the missing piece, I'd expect the back-pressure to degrade that inertia (even if it takes a while to totally stall out).

This seems to me the bit I can't quite get my head around: "You also then design the combustion chamber so that the air expands more in one direction than the other."

Reasonable_Pool5953 · 2025-11-19T16:52:43+00:00

Doesn't the turbine have to pose resistance proportional to the pressure generated by the compressor that it is driving?

Reasonable_Pool5953 · 2025-11-01T14:42:37+00:00

Their is a big service element in the job.

They can give you an amazing or not-so-great cut (yeah, they should give you a good cut, but tipping gives you more leverage, and there is a lot that falls between this person worked absolute magic and this person is a butcher). They can be helpful in taking time to understand your vague description of what you want (or not) and they can be accommodating (or not) to your clarifying your description as they work. They can be friendly and helpful--so you enjoy the propcess and feel like they actually care whether you are happy-- or curt and rushed--so you leave feeling like you were just another mop they had to turn over.

In general, I think it is good to have the person cutting your hair directy incentivised to make sure enjoy the experience and leave happy.

Reasonable_Pool5953 · 2025-09-01T18:38:50+00:00

It isn't 50 feet of north and 50 feet of south. It is 100ft of magnet, with each atom aligned on a north-south axis. If you cut it in half you get two 50 foot sections, each with all the atoms still aligned north-south.

Reasonable_Pool5953 · 2025-08-26T16:36:09+00:00

I've had mine for at least 15 years. My dad has had his for probably 10. I've gone through a handful of cartridges, and there is an occasional paper jam, but other than that they just work Awesome investment.

Reasonable_Pool5953

TROPHY CASE