> It's not a problem with centrifuges. We don't understand fluid physics. :(
The phenomenon on the video is a consequence on the centrifuge itself. If you think that fluid in a centrifuge behaves like fluid at rest with extra gravitational pull, the problem there is your misunderstanding of non inertial reference frames, not your misunderstanding of fluids. In simple terms: going around in circles isn't the same as standing still.
In the rotating reference frame, I think the centrifugal force will cause no problem in an uncompressible fluid, just a weird pressure profile. It will affect the particles in suspension and bubbles, but I don't expect too much effect in the liquid.
I think the Coriolis force has a bigger effect. I expect more curls with the axis in the vertical direction (that is the usual axis of centrifugues), than in the other directions. Also, most of them rotating in the correct direction (like hurricanes on Earth).
Is there info about how is the camera mounted on the centrifugue? I expect it to be on top, because a spinning camera looks too difficult. I'd expected more vibrations. Centrifugues are noisy and vibrate a lot. Is the video stabilized?
I'm not sure about the effect of the vibrations. Probably it's more difficult to have a laminar flow.
The comment you replied to does not refer to WWI nor Russia's war with Ukraine, it refers to the Russian Revolution after WWI. It sarcastically indicates that "nothing" can be done now about the unjust state of Russia resulting in Navalny being a political prisoner.
The comment you replied to refers to the Russian Revolution after WWI. The damage inflicted by WWI greatly damaged the Tsarist regime. (And, no war, no German government shipping Lenin back home.)
You're all taking this way too seriously. You see, Twitter is this guy's way of marketing himself. He's basically showing off what he thinks companies want to see in a manager.
Google does the same. It wants the pages that it indexes to be original; if a page just copy pastes another page's content, its score is affected negatively or even de-indexed, they call it spam.
Google itself on the other hand does just this, for example Wikipedia text and lyrics are taken from other pages and copy pasted onto Google's page.
Try telling a "googler" this and theyll go "noooo but for Google it's different because Google has determined that's optimal and good for user experience". It's difficult to get someone to understand something when their paycheck depends on them not understanding it.
> Try telling a "googler" this and theyll go "noooo but for Google it's different because Google has determined that's optimal and good for user experience". It's difficult to get someone to understand something when their paycheck depends on them not understanding it.
In my experience googlers are very capable of saying “Google is bad but my salary is good”. Plenty of people understand things that are contrary to their paycheck.
That said, Google generally respects Wikipedia’s and others license to the data. And it is generally in the users best interest to get to desired content/information in less steps, regardless of the data’s provenance.
What I said is if I copy paste things into my page, Google will kill it because it's spam. If I say "but what I'm actually paying for this content"... That's irrelevant.
I'm not saying that Google is stealing content, I'm saying they're hypocritical is applying and argument when the conclusions benefit them, but not otherwise.
America has self correction and self repair mechanisms at the highest level of their government, so it won't completely melt down if it has a bad president.
It does have "checks and balances", to be sure, but I don't trust them to self-correct.
On the one side you have the Supreme Court, two-thirds of whom were nominated by the same political party. Their views were vetted for party loyalty before the nomination, and that vetting has become increasingly stringent. I do not trust the Court to fix a melt-down by a President who himself named a third of them -- which we had and may soon have again.
On the other hand we have the Congress, who is almost clinically incapable of anything. This law is part of a budget that was required months ago; the government itself has been operating on duct tape and baling wire. This is a rare instance where the Congress was able to act in a way that protects itself from its own incapacity.
And frankly I don't put much stock in it. I'm quite certain that a future President who chose to withdraw from NATO would simply do so and concoct an excuse why Congress' inaction was in fact consent.
The Congress has practically no power to force its will. It could potentially impeach and convict, but that has not happened even once. And even if it did, a President having a "melt down" could simply ignore it.
We do have self-correction, in the form of a vast government bureaucracy that keeps functioning even when its top leadership is a complete nutcase. But that has been increasingly presented as a conspiracy in itself, by the Presidential candidate most likely to have a melt-down. If he wins, it's because tens of millions of Americans support is belief that the government itself is a conspiracy against them.
What a stupid comment. Greed is universal, it's not especially American. Furthermore America is one of those countries where you can steal millions and still end up in jail. In many countries a few million is enough to avoid jail forever.
The phenomenon on the video is a consequence on the centrifuge itself. If you think that fluid in a centrifuge behaves like fluid at rest with extra gravitational pull, the problem there is your misunderstanding of non inertial reference frames, not your misunderstanding of fluids. In simple terms: going around in circles isn't the same as standing still.