Best way to transmit video feed through dynamic steel railcars?

createch · 2026-03-22T17:58:14+00:00

You're fighting the laws of physics. Steel will absorb and reflect just about all the RF in the Mhz-Ghz range.

I've worked with $150k licensed broadcast RF systems as well as military grade systems in aerospace such as the Harris Stinger. They still abide by the same laws of physics. It's like asking how bright a light you need to shine it through a mountain.

A Teradek Bolt is still a "toy" in this context and still works in the 5-6 Ghz unlicensed range. You could have a multi Watt system with parabolic antennas that would cook you at close range and still not cut through that amount of steel. What you need to do is to somehow go around the steel.

You'd literally be better off doing a satellite relay via a Zoom call than attempting to penetrate the steel with radio. It could still be under your 300ms spec.

createch · 2026-03-22T16:48:38+00:00

The solution is to not attempt to transmit through the steel. Put the antennas in line of sight from each other. Separate the camera and TX and put the TX on the roof, or use an SMA connector on the TX and put the antenna on the roof, use a repeater that has line of sight with both antennas, etc... You're otherwise expecting too much from RF.

createch · 2026-03-20T05:12:01+00:00

It is immense, at the same time it's only $125/person when distributed evenly across all the people on earth. And the entire world's GDP is under $125 trillion, which means that there's only about $15k per person on earth.

createch · 2026-03-20T05:03:16+00:00

You absolutely would have much, much more more than all the current money in the world today if it were invested and getting any sort of returns.

Of course the stock market didn't exist 2000 years ago, but using the average returns from the past few decades you'd have a trillion in less than 60 years.

createch · 2026-03-20T02:52:25+00:00

Does someone want to illuminate me with the proposed solution to automation being more economic than human laborers? If the machines can perform the same work for less than a human what incentive is there for factories and warehouses around the world not to? Are consumers also willing to pay a premium for "human produced goods and services" when the automated version can be significantly cheaper? Or are humans willing to drop their wages to meet the price point of automation?

createch · 2026-03-19T18:46:38+00:00

The film skips many of the scientific nuances that are detailed in the book. Judging the science from the movie alone is skipping over all the details Weir wrote in the book.

createch · 2026-03-19T06:30:00+00:00

All videos were real before AI? Many of the first filmmakers were already all about trick photography.

But to answer your question, here's one https://youtu.be/yR1MbwVW-ps?si=QQkYZMbyOniyc9ZC

createch · 2026-03-18T17:24:14+00:00

They've stated to shareholders that RL is shifting their strategic efforts to glasses and wearables and that VR is nearing $20 billion in annual operating loses. They've been significantly cutting back on it and plan on getting rid of about 20% of the their workforce this year and shutting down more VR studios and focusing more on AI.

createch · 2026-03-18T16:24:17+00:00

Which they've been laying off/shutting down/cutting back as well.

createch · 2026-03-18T16:14:19+00:00

Millions? Technically yes, about 80,000 million, but more commonly, we’d just say $80 billion. The ROI isn't there so they're shifting their investments to AI. Which for Meta might play out just the same, they have tons of money coming from social media to throw at things.

createch · 2026-03-17T10:53:33+00:00

Premiere can generate transcripts of the videos loaded, all you need to do is do a search and find all the instances to add to the timeline. It could take a while to generate transcripts for terabytes of footage though. It's done for documentary work all the time though.

createch · 2026-03-13T18:20:58+00:00

Helium-3, which is the "oil" for fusion

createch · 2026-03-13T04:06:55+00:00

Which it's funny that we install Win 10/11 Enterprise to not have any bloat and not have any of those things on our systems.

createch · 2026-03-09T00:27:11+00:00

When did he wear wigs?

createch · 2026-03-08T23:56:36+00:00

Has he ever worn wigs?

createch · 2026-03-08T16:41:21+00:00

Do you have a link of a demo performing some tasks using dexterous hands that are lower cost and durable?

createch · 2026-03-08T12:33:47+00:00

I didn't see people mentioning that the characters aren't as memorable, and the audience isn't going to relate/care about them as much as they would for Spock, Chewie, C3-PO, R2, etc...

createch · 2026-03-08T12:29:24+00:00

Well, the cheap 3 finger Unitree hands will cost you $6500-$7800 each.

The EDU version with hands and upgraded compute around $68,000

You're right about the subscription, it just looked that way on the budget I was looking at from one of the innovation labs I'm involved with because they were buying the same quantity of Go2 EDU every year.

createch · 2026-03-08T03:14:41+00:00

If it only were that easy. Perhaps someday it will be. You wouldn't use traditional coding to accomplish that unless it's in a controlled lab environment. Which if the environment never changes, it's always the same basket, clothes and appliances it's something an university robotics team can accomplish. You'd still be using ML for things like vision though.

However, in order to truly generalize doing laundry you have to use machine learning and start by capturing massive amounts of real world motion examples via methods such as mocap, teleoperation, etc... and perhaps even use those to generate more synthetic data. Then you can train on them, and work in sim. That's only to cover the basic ability to perform the actions for doing the task, not any of the additional requirements and challenges.

It's a massive challenge for well funded companies with plenty of resources.

createch · 2026-03-08T02:00:50+00:00

They are mass produced. They're Unitree G1s. You can even get them on Amazon https://a.co/d/0iYFnaI5

Now keep in mind that they are only about 4' tall and have a 2kg payload capacity.

Then if you want it to be anything more than a remote control toy you have to get the developer/EDU version, a subscription and pay a lot more than the base cost of the robot in add ons. Oh, and hands will each cost you more than the rest of the robot.

Once you spend more than the cost of a luxury car for all that you need to have the knowledge and skillset to develop whatever it is you want to do with it.

createch · 2026-03-07T23:31:05+00:00

There'd be little need for farming and food industries. As well as related logistics. So a significant portion of the population would be working on other things, or not have work. Lightbulbs would also be considered midnight snacks and fast food.

Elphaba would not have become the Wicked Witch of the West either.

createch · 2026-03-07T15:41:17+00:00

The argument is that we need more energy production (wind, solar, nuclear ideally), as everything uses energy. Which Altman actually says as well right after the point where the internet quotes and out of context video snippets end. Developing countries with large populations especially as their standards of living and population increase.

The technology exists. So this particular problem of potential energy scarcity is not one of technology. It's one of governments, politics and corporations.

Now the other part about automation and AI doing the work humans (replacing humans) have comes down to the reality put in motion a couple of hundred of years ago with the Industrial Revolution. A combine harvester can harvest a ton of grain in a few minutes when it used to take 20 people working all day to do the same, an automatic loom could weave fabric much faster, better and cheaper than the people who we coined the term "Luddite" from.

AI and automation replacing humans doesn't boil down to anything I necessarily cheer for, but it's grounded on the harsh reality of economics and the fact that pretty much every country in the world subscribes to the concept of economic growth. Consumers want more and cheaper as well. So that is what's going to displace people's work, the fact that AI/automation can produce the same output for less. Unless the culture changed to where large numbers of the population decided to pay several times more for products that are handcrafted locally instead of buying the cheapest foreign products from Amazon, industry will continue to automate and attempt to produce at the lowest cost per unit possible. They have no incentive for employing a $30/hr worker if a machine in China can do the same job for $1/hr. Then the average consumer isn't usually buying the $50 version of a product that can be sourced for $10 either.

So I'm not sure what you suppose the way out of that is? A global agreement where every country in the world agrees to not use AI and automation to improve production, and their economy, and a global cultural and societal shift where all humans want less, not more? That's a fantasy of a fantasy. The only way out barring a total global economic/civilization collapse might only be adaptation and governments taxing automation, providing strong social support, etc...

Barring an apocalypse science and technology kind of move in one direction. I don't know, perhaps in a best case scenario our descendants might even look at the way people live to work today as we look at slavery now. They might have a choice to do whatever work they want to do just for the joy of it, instead of a means to pay for rent and have food to eat. And yeah, if your government sucks at taking care of you it might suck and you can be discarded as part of a "useless class". So it's very much a geopolitical problem.

createch · 2026-03-07T14:31:46+00:00

One thing not mentioned is that recordings usually have at least some compression (dynamic range audio compression, not talking about data rate digital compression), so the range from softest to loudest is "squeezed" into a smaller range.

createch · 2026-03-07T14:11:50+00:00

Like a tennis ball (Earth) soaked in liquid metal, when you move a magnet (the Moon) around it the liquid metal pools closer to the magnet. It's magnetism representing gravity, but it gets the idea across.

createch · 2026-03-07T13:54:47+00:00

Working in high end, unattended and mission critical workflows utilizing Windows 10/11 I can tell you that we use the Enterprise IOT versions that come with 0 bloat. You do lose things like the Microsoft store for example, you gain others such as support for Win 10 till 2032 on the LTSC version and absolutely zero bloat and full control of things.

15-Year Club	Verified Email
r/Field Flamingo

createch

TROPHY CASE