You can calculate the average size of the expected small density differences in the 3000 K hot plasma, and for each Dark Matter model, which vary for instance by amount of Dark Matter or properties of Dark Matter, you get a different distribution of those differences. The actual differences physicists measure fits a model, where there is five times as much Dark Matter than baryonic matter, and the Dark Matter does not interact with itself or normal matter.

I think this might be the first time I've seen a Slashdot comment with a non-alphanumeric character that displayed properly. Nicely done, AC!

A lot of it comes from the Cosmic Microwave Background. It is nearly, but not fully the same everywhere we look. There are minuscule aberrations at the 10 to the power of minus 4 Kelvin, and they have certain frequencies. The frequencies are consistent with a medium where normal matter has a temperature of about 3000 K, but is embedded in a type of matter which does not interact - neither with itself, nor with normal matter.

To be frank, physicists have a whole list of things it can't be, because otherwise, they would be able to see the effects of it. This is a common misconception, to confuse not knowing what it is with knowing what it is not.

And they can rule out interaction of Dark Matter with itself on a large scale of magnitudes, e.g. everything above the Weak Force.

It was. The problem Democracy was not designed to address is a completely different one. To trust Democracy, you have to feel you benefit of it. For a long time, living in a democratic country meant improving your standard of living, slowly but steadily. Respect for the current system of government comes from the system of government benefiting you. It's aligned with the Golden Rule: Don't do unto others what you don't want to be done to you. The system of government sets boundaries of things you can do, and you respect them because you don't want the same things happening to you. You respect Democracy, because if the current government does something you don't want, you can always publicly complain, elect different officials or run for office until your grievances are addressed.

Several decades without real improvement of the standard of living for the average citizen has shaken the support for Democracy, because people feel Democracy has failed them. They no longer insists on upholding the rule of Law, because there is the impression that the Law benefits the wrong people. Decades of sentiment, reiterated in countless movies, novels, documentations and opinion pieces, have consolidated to the general view that government officials and politicians are either incompetent, grifters or blocked by countless laws and regulations to do something for you -- and this view is now so ingrained that people don't expect anything anymore from Democracy and are ready to try something else. The U.S. has broken the promise of your pursuit of happiness, and the pundits explain to you it's your fault. Throw out the rule of Law, throw out the balances of power, throw out elections in general when all they apparently do is benefiting the wrong persons.

Actually, it was. The whole point of a democracy is to have non-bloody rules to get rid of an unpopular government. The more hoops you have to go through, the less democratic a system is. At the end of Dashiell Hammett's "Glass Key" (the novel, not the movies), Paul Madvig comments that this time, the other side will win the election, and he will lie low for four years until the next vote. And yes, Paul Madvig is a self-serving grifter.

I guess, it's the first one. It's the strong man he is posing at. "We'll take your precious Lake Ontario as punishment!" And many of his voters like the strong man punching holes in the walls the establishment has erected - even if it is only an established name. And his voters like symbol politics, so he gives them symbolism.

Apparently not. Otherwise, consumers would not buy all those additional features. Some people calling themselves car guys have claimed for a long time that too much technology in a car is a bad thing. But that's not what consumer demand tells the car companies. And if you look at statistics, car break downs per mile driven are in a constant decline. A 1970ies car at 100,000 miles was ridden down. A 2020ies car at 100,000 miles is just well driven in. Yes, people could fix the 1970ies car themselves. Just buy the manual and the spare part, and off you go. But that was a necessity, not a feature. Today, people want their Apple Carplay and their Android Auto. And that means you need a computer as your head unit. People want cruise control and good mileage, and that means electronic injection. Lambda catalysts have reduced car emissions, and unleaded fuel has severally brought down violent crime numbers 20 years later. This also required electronic injection. People don't want to crank down their windows, and that means electric window controls. People like their stability control, so the car does not go off the road uncontrolled if you make a steering mistake. People like anti lock brakes. Airbags and pretensioners have brought down road fatalities from their heights in the 1970ies.

Yes, you now need to be a learned car specialist to service a car. But you need service far less often, and your car is a better car in all other aspects.

Yes and now. It was also the Age of Discoveries. That means that basically each ship crossing the oceans at the time also had a part time or full time scientist on board, who was measuring everything he could put his instruments on. The Royal Navy and its requirements for logs also demanded a lot of data to be taken daily, including air and water temperature.

Depending on the region you live in, it goes back until 1736 (e.g. Schoenbrunn, Vienna and Mannheim, Germany). In this year, several observatories in Central Europe agreed to take regularly measurements of weather data and keep a log of them.

And yes, that's the time when Daniel Gabriel Fahrenheit (1686 - 1736), Anders Celsius (1701 - 1744) and René-Antoine Ferchault de Réaumur (1686 - 1757) lived, each constructing his own type of thermometer, and defining his own temperature scale.

It was Attachmate, which swallowed Novell and spun of for instance SuSE Linux before being itself acquired by Micro Focus. SuSE S.A. is now a separate company in Luxembourg, and maybe, they are holding the original UNIX licenses, as it would fit into their portfolio.

That's why he said "That makes it usually cheaper to use a non-HEPA filter but a higher air throughput rate."

It's a tradeoff, like almost everything in life. Whether his "usually" is correct depends mostly on who wants to buy the system, and only they can tell.

You miss the point completely. The technology is there and unstoppable. Cutting down one company doesn't destroy the technology. Killing Napster didn't kill the technology, it just spread it around, decentralized it, then there were thousands of sites to control, and they never did manage to do that, did they? Killing Flock will do exactly the same.

Killing Flock won't kill the concept or the capability and more than demolishing Napster stopped music copying. I bet within 5 years, this scanning will be common in most dashcams and phone apps will be available.

Lashing out in anger without having a plan or knowing your target is juvenile.

Whoops -- accidentally moderated it. Undoing...