Discover and read the best of Twitter Threads about #abm

Most recents (7)

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Death of a Myth

We are experiencing the death throes of the #US unipolar hegemony over large parts of world. theamericanconservative.com/death-of-a-myt…
"Until citizens begin to realize the magnitude of their govt’s policy deceptions, it will become increasingly difficult to understand the #US changing global position & adjust to the effects of the growing negative perception of our country held by many people around the world." Image
Since World War II, & particularly after the collapse of the Soviet Union, the US was the dominant & unrivaled world power. Instead of being a peacekeeper & honest “world's policeman,” the US has increasingly been a destabilizing bully.
theamericanconservative.com/death-of-a-myt…
Read 13 tweets
Day 4, Session 2 of the #SpaceThreatsOEWG.

Exchange of views by Member States: 🧵
Live video feed here: media.un.org/en/asset/k1g/k…
Finishing topic 3, space-to-space threats.
Read 47 tweets
The 66th AD Battalion (HQ at Hatzor AB) operates the "David Sling" (DS) #ABM system.
The unit includes 2 batteries with 2 launchers each.
Back in 2018 Israeli media show an image of the Ein Shomer site.
The shadow clearly indicates the DS system present in
3 of the revetments ImageImageImage
2
Back in 2013 the construction of 4 Arrow launch bunkers and 2 concrete pads started in the north of the base, now usually occupied by 48 bunker msl & 2 six-tube surface launchers.
This leaving the revetments empty for the DS system which was introduced in 2017. Image
3
The supporting El-2084 Radar was placed next to the "Oren Yarok" ABM Radar which supports Arrow.
The use of the DS system was published in the Israeli media when captured during a launch from Ein Shomer in an (unsuccessful) intercept against a Syrian S-200 on 25.12.18 Image
Read 10 tweets
We are thrilled to announce that the very first #ABM in #archaeology textbook is now

PUBLISHED!!!
🎉🎉🎉

amazon.com/dp/1947864254

@CDWren @StefaniCrabtree
What's inside you may wonder?
🤔

▶️ Practical, hands-on tutorials designed for not-computational folk.
▶️ Algorithmic zoo, with all the most common ways to model, well, everything.
▶️ GIS, Networks and Data Science chapters.
The goal was to get archaeologists from zero to hero in #ABM with the least effort required.

All chapter have been extensively tested on students, workshop goers and colleagues.

You can do it even if you're not particularly computational in your research!
Read 5 tweets
Follow this thread for coverage of our SFI Flash Workshop re: #COVID19, "After the First Wave," organized by @mikha_ehl, Cris Moore, & @svscarpino — with presentations by @meyerslab, @Caroline_OF_B, @rajivatbarnard, @glenweyl, & @sdelvall.

More info:
santafe.edu/events/after-f…
Some background from Lauren Ancel Meyers @meyerslab about the #epidemiology modeling community's efforts to produce #pandemic projections for the @CDC — first about #influenza and then, suddenly and with the models incomplete, pivoting to #COVID19:
Aggregate data from travel in and out of #Wuhan in early 2020. To infer the pace of the #epidemic, @meyerslab and colleagues used info on timing & location from first cases in other areas, travel volume to/from Wuhan, and gave an early doubling rate for #COVID19:
Read 13 tweets
"You don't see radio changing gradually and suddenly become radar. #Darwin's theory doesn't work for #technology, and we have to make a new observation."

- W Brian Arthur at SFI today

#evolution #innovation #invention
"Novel technologies are constructed from existing technologies. These offer themselves as components for the construction of further technologies."

- W Brian Arthur at SFI today

#evolution #innovation #invention #technology #engineering #design
Unlike the two-parent #inheritance typical to (but not ubiquitous among) #complex organisms, #technology inherits features from n parents - a "vast ancestral #network" more like horizontal gene transfer networks in #bacteria.

W Brian Arthur on sumulating #invention on a chip:
Read 18 tweets

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