This map is impressively detailed and accurate. When you look at a small village-sized area that you know today, you can often recognize the features on the Cassini map (no always though ; many hills were drawn as they appeared from afar, many of the tiniest locations were marked upon hearing word of them by locals).
But it gets even more impressive when you know what the times were like when this map was made.
Neighbouring valleys hosted different languages that sometimes were not intelligible to each other.
In places, local people didn't have a name for the prominent mountain they grew up and spent their life under.
One of Cassini's young cartographers was notoriously killed by villagers who put an axe in his head, because pointing his mysterious brass and glass instruments at mountains and bell towers made them be sure he was a bad wizard.
Those were the times. And this is the map !
I work with several professional cartographers here in France. All of them have several large printed maps in their offices, just for the beauty of them. I don't know of one who does not have a Cassini map along, somewhere on an office wall.
Many mountainous regions across Europe too, like the French region where I live. Tyres are potentially part of any routine police check. The region is a rather poor one, and many roads are simply not salted at all. With proper winter tyres (and AWD helps too, but it's not as important as tyres), you get through, albeit sometimes with poor elegance.
The amount of snow we get is never anywhere close to those American phenomena I see sometimes in the news, where snow gets half way up your front doors nearly overnight. Seeing that, I'm surprised to read that most people don't use snow tyres in such places : it feels like going against common sense even on an purely individual level.
In places that get a lot of snow we have good snow removal. Thus you don't need snow tires as you aren't driving in it much. You also learn to drive in snow, which mostly means slow down.
And conversely we read about what anyone in the Midwest would consider to be a minor snowstorm and it causes a catastrophe in the South. See for example this article about 3 inches of snow in Atlanta, Georgia.
That makes sense. Then there is still the problem of the cold tarmac, on which summer tyres are said to have poor grip, but that may not be as obvious to the average commuter as a road turned to thick white with two icy ruts to follow. And anyway I'm getting off topic regarding salt :)
And if you talk about Germany, there's a whole museum dedicated to those in Bonn. The "Artihmeum". In the city center, by the university. It's huge, fascinating, and I believe I was the only person inside when I visited last year... They even let you use some of the originals.
Come to Europe, masons' ghosts are all over... I used to live cheaply in a simple downtown appartment in a mediterranean city. Year carved in stone : 1724.
Or more likely because very young dogs would grow some basic traits of character while influenced by the behavior that their parents exhibit in front of them.
Puppies are supposed to be separated from their parents no earlier than about 6-8 weeks old. Critical socialization time is the first 3 months of their life. (Or so. These numbers vary by region and amount of caring; I'd rather have the puppies spend more time with the mom than less.)
If I think straight, the initial potential energy in a column of liquid would be the integration of mgh (actually integration of density * g * section * height), therefore mgh/2 at the beginning of the situation. Or said intuitively : the center of gravity of the column at half its height.
But obviously, even with this 1/2, your relation after dividing between two tanks still holds. :)
Yes, one h is hidden inside m... Ending up with energy = something * h^2 actually makes the relationship show the same face as the one for capacitors, where energy = something * v^2.
And that's what has been going on for a few days inside Europe now. Airlines flying empty or near empty planes to keep their slots. The European Commission was meant to make a move about that, I don't know if that's been done already or not.
Beside the discussable mortality rate among healthy adults, and beside surving with permanent lung damage, many people who are 30-40 have kids who are 0-10. Things take a whole new dimension there.
Coronavirus isn't like the flu in this regard, and is actually less severe the younger you are, including children.
No one under 10 has died from it, and only one person under 20. The mortality rate for people under 50 is about .2% (compared to 2.3% for all cases).
So far it's basically a logarithmic function of age.
The lung damage piece is obviously frightening, and we obviously still have a lot to learn about it as we're not sure why children are able to fend it off so easily yet.
The mortality rate of kids 0-10 has been extremely low.
As for permanent lung damage, it's hard to say. From what I've read about ARDS, as expected, if you're young, lung function and general physical function can improve back close to baseline over time (e.g. 5 years). So it's not like you're going to be confined to a rocking chair but you won't be winning any marathons either.
ARDS is not permanent lung damage. You may recover lung function after ARDS. You will not recover from permanent lung damage. It will even deteriorate and your prognosis is less than 5 years to live. Stratification is a red herring, but feel free to do so.
It might be a stunt, but stuff like that happens. Many years ago I used to work for a large European company that ran a booking system for several hundreds of airlines. The system was used as a back-end by more than one famous online booking site. Currency rates were updated automatically. Once, on a new year's eve, at midnight, a glitch slipped into the Canadian dollar conversion rate, setting 1 CAD to 0 EUR. All of a sudden, all Air Canada flights were for free for European customers, at what might be the worst time of the year :
"- so, this year's resolution : we take time to travel.
- hey look honey, Canada looks cheap.
- deal done, book right away, and let's open one more bottle of champagne !"
I don't know how many AC flights were booked before someone realized and an on-call guy fixed the conversion rate. However, I know that all those free bookings remained valid, and were offered by my company who payed all of it directly to Air Canada.
A cigar retailer I used to frequent had a buy 1, get 1 free special on a variety of cigar 5 packs on their site. One day, a cigar I loved was no longer part of this deal, so out of interest, I found the id of the product and placed it in the request. It worked!
That was a problem. So I emailed them to let them know that it was an issue, and received a phone response. I was told "oh, that's not a big deal." I responded by telling them to place a $500 box of cigars in the field.
I remember at some point the French computer retailer had an issue when running a "buy 2 get 1 free" offer on blu-rays. One could remove the two bought items from the cart and the free one would remain. Repeat ad-libidum.
Last year Amazon ran an offer where all photographic gear cost $94. All of it, even lenses which retailed for over 13k. https://www.usatoday.com/story/tech/2019/07/19/amazon-prime-... If there is one regret I have in my life, it was not checking the prime day that fateful morning.
I won the lottery on a similar issue. I was looking at monitors on Amazon using a business account, which sometimes offers volume discounts. Instead of a $10 discount, someone had set the unit price to $10 if you bought more than one, for a $1100 monitor. I bought five. I expected the order to be cancelled, but a week later five monitors showed up.
Along the same lines, I was shopping for fuel injectors and someone listed a particular part number at like $1.50ea. So now, years later, I have a peanut butter jar fulled of 24lb/hr EV1 injectors that are not the right flow rate for anything I own but hey, maybe I'll use them eventually. It's nice to find a pricing error but it's rare to be in a position to actually use or be able to re-sell multiple units.
Similarly long ago, a french amazon like site offered (alapage?) a 5e rebate for new customers, one coupon per person, and a person being identified by its delivery (fullname, address) pair. Except that they used string equality as comparison which means every typo combination got you a new account.
Suddenly anything <= 4.99 was open hunt. A month or so later, most item were now 5.01. And possibly uniqueness was now put on credit card number, people can't get more than a handful.
I never could find a figure nor an article in the news but considering how fast this spread around, it was an expensive mistake.
Once my brother wired 10M EUR from Austria instead of 10M HUF. The exchange rate is above 1:300. Needless to say, he didn't have 10M EUR on that account. Like, ever. Not even close. I still have no idea why the bank let him wire more money than he had especially on this magnitude. They reverted it but we needed to cover the spread which caused an almost 10k eur loss. That hurt.
I have once accidentally copied my one time password into my ebank for payment (I was trying to copypaste the amount from somewhere else, it didn't take, that happens often with PDF and then the clipboard contained the previous copy) and it would've let me do it if I don't stop it at the confirm screen. It's mind boggling.
It saves so many headaches. I used to support a system with an automated fallback. If today's feed wasn't in by cutoff then the previous day's feed was used.
Unfortunately we'd sometimes get partial or corrupted feeds. Partial feeds triggered investigation and possibly a manual rerun and corrupted ones often halted the system.
Because we only used monthly numbers for reporting, delaying and rerunning any other day was pointless beyond standard root cause analysis to prevent recurrence. And this system had hundreds of feeds so at first there were almost daily issues.
So I added a check to throw out any deviations over two sigma from the median of the last 30 days' good feeds which knocked out 99% of our data quality issues. I got in a boatload of trouble for different reasons but that's another story.
This predated DevOps: we were using the Carnegie Mellon Capability and Maturity Model (CMM) which split roles into Plan, Build, Operate and Control with me in the Operate tier. I proposed the change, got Build to schedule and release it but I didn't get buy in from the architect of the system. He was toweringly, incandescently angry that I had dared touch his design. To the point where I think he tried to get me fired over it. Fortunately cooler heads prevailed because really I was right and it was all just an ego thing on his part. I took a page from my boss who was masterful at dealing with these kinds of things. We buried the architect in all things operational to the point where he eventually asked us to stop and grudgingly allowed we knew what we were doing. I don't know if he believed it or just wanted the emails to stop.
