On 26 June, the 4th Eurasian Economic Forum in Minsk will host a joint
event with one of the Eurasian Economic Union's key trading partners in
the Persian Gulf: the United Arab Emirates.
Nature risk is just as important as climate risk and business dependency on ecosystems means banks are indirectly exposed, a Banque de France (BdF) director
An accelerating charge emits radiation, but the most astonishing thing about a *linear* particle accelerator is how *little* energy is lost through this process.
Jackson’s “Classical Electrodynamics” (14.29) shows that you’d need to subject an electron to the order of 2×10^{20} volts per metre before the radiation loss became comparable to the gain! This is ridiculously huge – 10 orders of magnitude more than any current technology – and the Schwinger effect would already cause electron-positron pairs to pop out of the vacuum at 10^{18} V/m.
Changing the particle’s direction in a circular accelerator is different. Here, the energy loss per revolution is about:
δE ≈ 10^{-4} E^4 / (m^4 R)
where energies are in GeV, R is in metres, and m is in multiples of the electron mass. So when E is tens of thousands of GeV, you need a very large radius for the accelerator.
One way to help with this is to exploit the m^4, and use muons, 207 times heavier than electrons, giving a two-billion-fold reduction i
... show more
An accelerating charge emits radiation, but the most astonishing thing about a *linear* particle accelerator is how *little* energy is lost through this process.
Jackson’s “Classical Electrodynamics” (14.29) shows that you’d need to subject an electron to the order of 2×10^{20} volts per metre before the radiation loss became comparable to the gain! This is ridiculously huge – 10 orders of magnitude more than any current technology – and the Schwinger effect would already cause electron-positron pairs to pop out of the vacuum at 10^{18} V/m.
Changing the particle’s direction in a circular accelerator is different. Here, the energy loss per revolution is about:
δE ≈ 10^{-4} E^4 / (m^4 R)
where energies are in GeV, R is in metres, and m is in multiples of the electron mass. So when E is tens of thousands of GeV, you need a very large radius for the accelerator.
One way to help with this is to exploit the m^4, and use muons, 207 times heavier than electrons, giving a two-billion-fold reduction in δE! Muons have a mean life of two microseconds, so there are huge technical challenges, but there are plans in the works:
[Weirdly, this article gets the mass benefits completely backwards: “because muons are only about 10% as massive as protons, they could rev up to those energies in a much smaller and presumably cheaper ring.” No, the advantage is not being lighter than protons, it’s being heavier than electrons.]
Today in 1863, 162 years ago: in the Shenandoah Valley (Virginia) -in the context of the American Civil War (1861-1865)- the slave army of Northern Virginia defeats the Union forces in the Second Battle of Winchester.
The concentration camp is a particularly deep low for humanity. Since the middle of the 19th century prisons have been created for groups, identities, allegiances and beliefs. Without trial, simply…
Palantir Technologies (PLTR 1.72%) and Amazon (AMZN -0.68%) are both heavily exposed to the artificial intelligence (AI) trend, and both are popular stocks.
✈️🥔 Report on transport aviation activity in Belarus ahead of “West 2025”, - AviVector
In June 2025, Russian transport aviation began flights to Belarusian airfields in connection with the planned Russian-Belarusian exercise “West 2025” scheduled for this autumn.
LOS ANGELES (KABC) -- "No Kings Day" protests are set to be held in Southern California and throughout the country on Saturday to protest President Donald
S2053 A bill to ensure that Write Your Own companies can sell private flood insurance products that compete with National Flood Insurance Program products.
TIL: The Irish govt has provided €50M for development of a [GAA] stadium in Belfast (and now the Brits have stepped up too -- don't tell the Brits ££ are worth more than €€). I guess it beats the hell out of the €€ RoI squanders to support greyhound racing. www.gov.ie/en/departmen...
DUBAI, United Arab Emirates (AP) — Iran launched retaliatory missile and drone strikes on Israel into Saturday morning, killing at least three people and
I hate it when they just do 1 season of a potentially promising series - not that that is the case with Murderbot (yet) but there have been a couple over the last few years.
@Tiffany@disabled.social @hannu_ikonen@zeroes.ca
I was in a bookstore with my sister and pointed to a murderbot book and told her I just finished that series.
Occupied Jerusalem (Quds News Network)- Israeli occupation forces shut down Al-Aqsa Mosque at dawn on Friday. They forced all worshippers out and sealed the mosque's gates. Israeli police stormed the
Evans’ inclusion comes as part-time throwing coach Corey Flynn moves on and is the only change to Robertson’s fulltime All Blacks coaching team for 2025 that
Flemish minister-president Matthias Diependaele is on Saturday leaving for a mission to Japan lasting almost a week, which will focus on life sciences. During
The Bank of Japan is considering halving its quarterly purchases of Japanese government bonds to 200 billion yen ($1.4 billion) from April 2026, the Nikkei
El Fiscal General Bonta demanda al famoso propietario Mike Nijjar y a PAMA Management por violar las leyes de vivienda de California y aprovecharse de... oag.ca.gov/news/press-releases…
OAKLAND — El Fiscal General de California, Rob Bonta, presentó una demanda contra un grupo de empresas de administración de propiedades y holdings inmobiliarios propiedad del magnate de viviendas de alquiler del sur de California Swaranjit “Mike” Nij…
To learn more, go to:Website: http://house.sherrill.govFacebook: http://facebook.com/RepMikieSherrillTwitter: http://twitter.com/RepSherrillInstagram: @repsh...
And still I can't help thinking that whilst this would have been great in the Bush era, it'll all be to no avail under the current fascist regime. And I fervently hope I'm wrong.
thank you for sharing. She is amazing and fearless.
Maybe women are less fearless of exactly this kind of bullies, because we grew up in a world being bullied by exactly this kind of men. (This is not a bash against men in general, I know a lot of great modern thinking, clever men, and there are many more of those out there, this specific Goofy Odd Posse though seems to be assembled soley of old school bullies, wishing to travel back in time.)
Thanks for following all that stuff and sharing. Here in Kyiv where there’s an overwhelming amount to do, it really helps to see folks fighting the good fight in #darkUSA.
Honestly, I was more aggravated at his weaselly question dodging than I was impressed with her on-point questioning. Don't get me wrong, she did great, just more irritated than impressed.
It's so good she just fired straight back with no engagement of his bullshit. "What do you have to say about how you fucked this up so badly?" "Awwaaooryeahfakenewsnstuff..." "Yep, because you're an incompetent moronic fuckwit. Ok, moving on to the NEXT thing you completely fucked up ..."
Wow, spot on, and Hegseth provided not a single answer… Why is this incompetent pompous clown still in office… beats any logic. But then again he was handpicked by the uberclown in office…
Vietnam led Southeast Asia in attracting South Korean tourists in the first quarter of this year with 1.3 million arrivals, driven by high levels of safety
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François @Prague
in reply to MAKS 25 👀🇺🇦 • • •