|
|
| |
| |
Wednesday 24th of November 2021
|
In chaos theory, the butterfly effect is the sensitive dependence on initial conditions in which a small change in one state of a deterministic nonlinear system can result in large differences in a later state. Misc. |
Lorenz wrote:
"At one point I decided to repeat some of the computations in order to examine what was happening in greater detail. I stopped the computer, typed in a line of numbers that it had printed out a while earlier, and set it running again. I went down the hall for a cup of coffee and returned after about an hour, during which time the computer had simulated about two months of weather. The numbers being printed were nothing like the old ones. I immediately suspected a weak vacuum tube or some other computer trouble, which was not uncommon, but before calling for service I decided to see just where the mistake had occurred, knowing that this could speed up the servicing process. Instead of a sudden break, I found that the new values at first repeated the old ones, but soon afterward differed by one and then several units in the last decimal place, and then began to differ in the next to the last place and then in the place before that. In fact, the differences more or less steadily doubled in size every four days or so, until all resemblance with the original output disappeared somewhere in the second month. This was enough to tell me what had happened: the numbers that I had typed in were not the exact original numbers, but were the rounded-off values that had appeared in the original printout. The initial round-off errors were the culprits; they were steadily amplifying until they dominated the solution." (E. N. Lorenz, The Essence of Chaos, U. Washington Press, Seattle (1993), page 134)[7]
Elsewhere he stated:
One meteorologist remarked that if the theory were correct, one flap of a sea gull's wings would be enough to alter the course of the weather forever. The controversy has not yet been settled, but the most recent evidence seems to favor the sea gulls.
|
| read more |
|
US considering sending extra weaponry to Ukraine as fears mount over potential Russian invasion @CNNPolitics Law & Politics |
The Biden administration is weighing sending military advisers and new equipment including weaponry to Ukraine as Russia builds up forces near the border and US officials prepare allies for the possibility of another Russian invasion, multiple sources familiar with the deliberations tell CNN.
The discussions about the proposed lethal aid package are happening as Ukraine has begun to warn publicly that an invasion could happen as soon as January.
The package could include new Javelin anti-tank and anti-armor missiles as well as mortars, the sources said.
Air defense systems, such as stinger missiles, are also under consideration, and the Defense Department has been pressing for some equipment that would have gone to Afghanistan -- like Mi-17 helicopters -- to instead be sent to Ukraine.
The Mi-17 is a Russian helicopter that the US originally purchased to give to the Afghans.
The Pentagon is now weighing what to do with them after the US withdrawal from Afghanistan in August.
But others in the administration are concerned that sending stingers and helicopters could be seen by Russia as a major escalation.
And while they are prepared to send some military advisers into the region, it is unclear whether any would go into Ukraine itself, the people said.
Retired Lt. Col. Cedric Leighton told CNN that Javelin antitank missiles "are quite effective against the T-80 tanks which the Russians are actually employing in these efforts against Ukraine right now."
But he noted that any additional assistance to Ukraine undoubtedly risks "further heightening tensions" with Moscow.
|
| read more |
|
2/2: Or will #AbiyAhmed be z new Menelik II who defeated Italian colonial army at battel of #Adwa in 1896, as he characterize #TDF as an imperialist agent? @KjetilTronvoll Africa |
He should keep in mind though, that z frontline commander at Adwa was #RasAlula from #Tigray, & there are no Alula in #ENDF.
February 1st 2021 ‘The genie out of the bottle’ @AfricanBizMag
“Everybody else is going to start wanting more freedom within the constitution. It’s impossible for the state to manage a guerrilla war up there and at the same time manage to control the rest of the country. If he put more resources into Tigray he’s going to lose more control of the other regions.'' “There’s no hope for him. If he has a fair election he will lose full stop.
Things fall apart; the centre cannot hold;
https://bit.ly/3Bk45GjTurning and turning in the widening gyreThe falcon cannot hear the falconer;Things fall apart; the centre cannot hold;Mere anarchy is loosed upon the world,The blood-dimmed tide is loosed, and everywhere The ceremony of innocence is drowned;The best lack all conviction, while the worst Are full of passionate intensity.
|
| read more |
|
|
|
|
| |
|
|
| |
|
|
| |
|
|
|
| |
|
|
|
|
