This sometimes solves the problem by itself, or it reduces the levels of stimulants needed.

So the first rule of getting attention for your paper is to re-define common terms...

A friend in college told me of a research project that had managed to balance a simulated inverted pendulum in 2D using 25 neurons and back propagation. But I had done this exact problem with conventional state space controls using only 5 summations (the equivalent of 5 neurons).

After I finish patting myself on the back, you then wonder what it would take for that 25 neuron solution to keep optimizing down the theoretical 5 neuron solution? The article is an interesting approach to that problem.

The paper they reference used 3456 input neurons and 9 output neurons, with no hidden nodes. They designed their input and output differently, so it's not a direct comparison. The optimized solution has 17 inputs, 2 outputs, and 2 hidden nodes. That's a massive level of optimization.

In addition, it is controlling a coupled 3D system (which is unstable). This is much more than 3 PID controllers.

Whenever you drive/walk in soft terrain, the wheel/leg is constantly climbing the ramp created by it sinking into the terrain. In a perfect system, this determines how much power you need to move. This is why trains are so efficient. A hard wheel on a hard rail has very little deflection -- so excellent efficiency.

Wheels have to climb that ramp for every inch of travel. Legs get to step forward and only take that penalty for each step. If everything else is the same, the legs win on soft terrain.

But everything else is never the same :-). The early legged vehicles used linear motions, which means you have these very long sliding surfaces. This is heavy and the drive system efficiency dominates over the terrain interaction efficiency. Add in the fact that you have multiple axis to drive and the weight and drive losses really add up.

Modern dog and human style walking robots are MUCH better on efficiency than those early designs. However, they require enough sensing and compute to dynamically balance. Legs can do things that wheels can't, but you have to have smart enough software to take advantage of that. The compute available for a high radiation environment is a fraction of what is in your smartwatch. Wheels are still winning on energy efficiency, but at least it's getting closer.

I worked on Dante at CMU and Marsokhod at NASA Ames; and was in the same group that developed Ambler.

That's 5X what is considered a safe dose.

Up to 2mg/kg/day is considered safe. Double that with care. But they were dosing every hour for days!

The introduction to SDR (software defined radio) is much appreciated.

Edit: defined, not designed

If you have a well understood problem space and a team that is up to speed on it, then the "why" is well established and the code is the "what".

However, there are often cases where the code is capturing a new area that isn't fully understood. You need to interleave an education of the "why" of the code.

I was once asked to clean up for release 10k lines of someone else's robotics kinematics library code. There weren't any comments, readmes, reference programs, or tests. It was just impenetrable, with no starting point, no way to test correctness, and no definition of terms. I talked to the programmer and he was completely proud of what he had done. The variable names were supposed to tell the story. To me it was a 10k piece puzzle with no picture! I punted that project and never worked with that programmer again.

Adding iodine to the cow's food made them healthier and that's how they estimated the dose for humans (mcg / kg).

Works on Mac, Windows, and Linux

Zig has a nicer syntax with fewer foot guns than C. It can also compile or link with C.

Some Autel drone are made in the USA, but not all.

Edit: added the Lite and fixed formatting

You may need a different level in different seasons of the year (because the sunlight varies) or if you change latitude (for the same reason). Your needs may be very different to the people around you.

Dr Gominak has done a bunch of research on D3 levels and sleep. Her RightSleep program will walk you through how to properly supplement into the ideal range. She has a few videos on YouTube with all the background info. This is my current favorite: https://www.youtube.com/watch?v=n1Qm5x7Lxgc

Having said that, most doctors don't have a clue about D3 dosing. You'll have to do some research.

Most people will overshoot in a month or two if they take 10,000 a day, but I know of people that have taken that level for long periods without ever going too high. It's super personalized.

There are some Antarctic cruise ships that come in and do a day trip. I hear the NSF hates this and makes sure everyone gets back on the boat.

They plan their logistics over a year in advance. Anyone showing up unexpectedly is going to throw that off.

The sun just orbits and never sets. So any normal day/night cycles doesn't exist.

There are other (smaller) bases on the Antarctic peninsula. I don't know what timezone they use. Their supplies are coming in from Chile or Argentina.

The Antarctic Support Contract was a thing back then too. They did most of the day-day operations, while the Navy managed flights, supplies, the mess (cafeteria), and the like. I don't really know the division of responsibilities.

Do you know if they are landing on winter flights, or just doing airdrops? The later is much easier to do. Even in the summer, the C-130s have to fly with enough fuel to return to NZ because there have been times when the winds become too high to land (and NZ is the "nearest" alternate runway).