I'm sure you're familiar with the countdown protocol, all the pre-flight checks, etc. These power up a range of subsystems, motors, etc, so that everything can be verified prior to ignition itself. The complete sequence takes a very long time. Under normal flight conditions, you can't check for absolutely everything (instrumentation is mass, and mass is the enemy) but there's still a lot. However, during an engine test, you can pack a lot more sensors in.

This is where you'd want to be spotting loose connections, pumps that aren't quite even, pressures that aren't as steady as they should be, vibrations that shouldn't be there or do not match expectations, turbulent flows, and so on.

At ignition, it takes between 3-6 seconds to go from stopped to 90% thrust. For humans, that's near-instant. For a computer sensor that's operating a million samples per second, that's 3-6 million readings. A computer performing a billion calculations per second shouldn't have much difficulty in comparing 3 million readings against model predictions and determining if both the values themselves and the rate of change at each point such a sensor exists are all good. Emergency shutdowns during those first 3 seconds are perfectly viable.

Vibrations are the ones that are likely the most interesting, because those are likely to change before something breaks, not sure how fast you can make infrared sensors, but that's also an area where things are likely to alter before point of failure.

You can't know the eclipse's gender unless you know which bodies are involved...

The appeal of Mars is that it could theoretically be made Earthlike, with a bit of handwaving perhaps, but not wholly outside the realm of plausibility.

As the appeal is in sending humans someday, there's going to be little support for building a toxic atmosphere, especially one which is particularly unpleasant to die in.

Lazy, yes. Bright, no. If you can't trust the average person to figure out that bread that's loaded with salt and sugar isn't healthy, then you can't trust the average person to figure out what a healthy balanced meal is.

The evolutionary pattern was created because food was unreliable and energy demands were unpredictable - but high, due to the large brain. (Possibly larger than it is today, but there seems to be conflicting data there.)

Now, rationing extreme energy foods is certainly one option, but it's not a particularly satisfactory one as the energy demands vary by profession and by time within a profession. You simply can't predict what people will need and there's no way to standardise this.

There is a second option. Intense focus is impossible for beyond about 45-90 minutes at a stretch, or for more than 3-5 hours in a day. Meetings degrade intelligence, according to psychological research, so you want to minimise those. After about 7 hours, work will mostly have negative value. If you increase the amount of high physical activity for at least an hour a day (and potentially longer if the amount of soft work is minimal in the job) then you will improve physical fitness and general health, without having to substantially alter diet. However, that still only gets you so far, because a poor diet still impacts physical and mental health, and can lead to brain decline. (It's a big factor in poor brain health in children in schools.)

A third option, then, is to actually improve meal quality in schools and for workplaces to work with the food industry to provide cheaper/easier access to high quality foods that actually taste good, not merely sensible energy foods. This would seem to be target solution, with in-work exercise to supplement it.

If that turns out to be the case, we get to find out something about what reshaping the brain means.

"I love this company" or "Developers, developers, developers, developers". https://www.youtube.com/watch?...

Of course it makes sense. Giving it to the power industry means we need to make more, and he can award the contract on a bribery basis.

Whilst that is perfectly true, it is questionable as to whether it is useful or necessary. If a rocket is being tested, then logically it should be heavily instrumented. If it's heavily instrumented, and the instruments are themselves competently designed, there is no obvious reason why the engine can't be auto-cut when problems start to arise. And they will have arisen long long before the explosion.

The values may have independently been "within permitted range", but if the pattern of those values doesn't make sense, then something has gone wrong. There may well also have been subsystems that were insufficiently instrumented.

"They're the experts" is often an irrelevancy - we lost TWO shuttles and crews to political decisions, when the experts on the ground were ignored. DeHavilland lost endless Comets to basically the same blunder, when political decisions by management over the reality of metal fatigue overrode analysis by actual experts. Improper monitoring and inadequate computer controls will be from a burden of costs and time (both political constraints, not engineering constraints). As, indeed, will improperly manufactured parts, improper software (anyone rememebr Arianne IV's mishap due to buggy software?), improperly-defined constraints, and inadequate quality controls.

The experts are usually either well aware of mistakes or afforded no means of detecting them.

I see no reason not to think this was anything other than a management blunder.

Absolutely not the point. That's not a small amount of money to have wandering around doing things.

Is the Shekel really stronger? Or is the dollar just going into the toilet? I'm seeing more and more international boycotts against Israel.

Coddling their little cupcakes until they become worse than worthless. Same as it ever was in times of plenty. Unfortunately, it leads to suffering.

He has been remarkably consistent for his entire tenure on Slashdot. His entire brand is not giving a fuck about anyone but himself, and he's proud to tell you so.

Anything that scares him is bad, and everything scares him.

Apparently the "hot fire" test was a great success!

Yeah, what that means is that they are going to be the de facto choice for pumps for european DCs, and yet they are asking the EU to build fewer of them, which will mean less business for them. This doesn't mean what you think it means. Unlike in the USA, a lot of major European corporations are still run with sustainability in mind. They would like there to be a tomorrow for them to profit in.