At high temperatures and pressures, some substances are neither liquid nor gas, but a fluid with properties of both.
Whereas most people work to live, and prefer boundaries between the two, worklife is an intertwined way of being.
Brunch with your business partners, afternoon shaking hands on a golf course, dinner with a senator, placing bets on Wall Street, a penthouse suite at the resort hotel where you’re keynoting, hosting a fundraiser at your home…
Basically it's their personality, but they don't do like 8-12 hours/6 days a week of drudgery work like building web apps on a deadline for someone else - that shit's draining. But if I'm putting money to work knowing my (rich) life is secure and more in control of my destiny, it's empowering for a lot of people to stay connected to it 24/7 even though it's "work".
I believe the US stock market has become too big to fail. Which is one of the reasons why the central bank has stepped in, to stabilize and essentially prop it up. Too many American investors have their life savings in it, and if the bottom falls out, the pitchforks will be coming for those (who think they are) in power.
This goes back to the "olden days", we'd call them optics because there's a lens, an aperture, focus, waveguides, etc. Newer antennas actually DO have fiber optics (RF over fiber) conversion so you don't have to deal with waveguides and/or coaxial cables, just convert right to fiber at the feed.
You still need to deal with waveguides in modern design. A system like this will have OMTs (OrthoMode Transducers) and couplers made from machined / electroformed components that are essentially waveguide. If it has transmit capability it will have some kind of Diplexer made in a similar fashion. And of course, if it has transmit capability, there will be some kind of waveguide between the feed and the High Power Amplifiers (either Klystrons or Travelling Wave Tube Amplifiers). There's always some waveguide to serve as plumbing between the feed, these components, and others like the LNAs (Low Noise Amplifiers).
Most RF systems also won't convert right to fiber at the feed but have some kind of upconverter / downconverter assembly in the hub. Those converters might have fiber connectivity but more often than not it is some kind of intermediate IF frequency around the L/S-Band where the conversion to optical takes place separately.
While I am rambling on, I think the applications of this antenna will be very limited. The frequencies in use are generally speaking much higher now than they were 40 years ago (they picked up NSS-12 at 4 GHz, which is more or less DC these days). At lower frequencies you can get away with a lot of slop with regard to RMS surface accuracy and the like, but the Ruze equation is a harsh mistress and gain suffers considerably as frequencies go up. Modern antennas designed to work at higher frequencies will have a much better overall stiffness and surface accuracy, so you have more gain at the same diameter vs an old beast like this. All this is probably moot because an antenna feed like this designed for low frequencies won't even pass high frequencies.
The servo system is also another issue. They picked up a signal from a geostationary satellite which is as easy as it gets. If the satellite is inclined or (worse) in LEO / GEO, things get much tougher. And the higher the frequency, the tougher it gets because the antenna beamwidth is much tighter for a given diameter.
They’re using rechargeable NiMh, not alkalines. I would have used the older Eneloops or current Fujitsus, but maybe rechargeable Duracells have better quality than their alkalines.
Aspirin is anti-inflammatory. A huge number of illnesses are caused or worsened by inflammation. Aspirin is likely to show benefit for a huge variety of conditions.
It's a complicated topic, biochemically / physiologically, however. Guidelines and recommendations have changed many times in the past couple of decades. With the scale of epidemiological data collection and specific studies carried out in recent years, conclusions are still rather "mixed".
There are many reasons to think, mechanistically, that aspirin (acetylsalicylic acid) should come out "net positive" in its effects on human health. But, even some of the "prostaglandins", for example, can be important in endothelial function and health (in a positive way).
I will note that I haven't kept up with this topic much in at least 5 or so years, but, I can point to a couple of sources with some analysis / discussion that should be of use to most, I think:
I specifically remember concerns roughly 10+ years ago that some of the expected net benefits might, in fact, actually be net harms in the broader population - particularly for other NSAIDs (non-steroidal anti-inflammatory drugs), but, even, at some point not long thereafter, for "aspirin" as well. I may dig out that info if I get a chance to try to refresh, myself, and will comment again if / when I do.
I always think of Lewis Black's bit on this, though (while pointing out that this is the nature of science and its best to go with the best info available at any time, generally, IMO):
this is my napkin math read as well, but aspirin is an inhibitor of both COX-1 and 2 with somewhat higher affinity for the former. this leaves you messing with something else that's important for regulating platelets, your gut, etc. even selective inhibitors of the latter aren't out of the woods yet. there's some literature that's starting to suggest COX-2 may be at least somewhat constitutive in some tissues (endothelium, hence coronary vasospasm) even if it's also mostly inducible.
not sure why no one has tried developing a prostaglandin e2 inhibitor instead. going further downstream might be safer.
> Currently, a number of randomised trials which test aspirin and mortality are in progress. These focus upon the common cancers: colon, breast, prostate and one in lung cancer. One of these trials, based upon 3021 selected patients in remission from a HER2-negative breast cancer, has already reported [31]. This trial was ended prematurely because aspirin was associated with a possible increase of about 25% in deaths.
Classic baby/bathwater disposal problem. There are plenty of medicines that are beneficial for some applications but harmful for others. Maybe all of them, to some extent? That's why the authors wrote dozens of other sentences in that article.
