pglpm

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I'd like to subscribe and occasionally post to some usenet newsgroup like sci.physics or sci.physics.research. It's difficult! I tried to simply enter "sci.physics" in Thunderbird's Newsgroup reader, but apparently it doesn't work simply like that... Even subscribing to news.eternal-september.org didn't help – I think my understanding of providers and groups is very confused.

Could anyone kindly help?

https://cubari.moe/read/gist/OPM/203/1/

This is quite new. Just wanted to share. (The link is from Sci-Hub, so the whole thing seems legit).

Edit: but, if I'm getting it right, they're just replacing paywalls with another paywall?

Does anyone have some thinkfan setting for Thinkpad X1E4 (X1 Extreme gen 4) to share? Cheers!

[Mod: not sure if this kind of question fits this community; please delete if it doesn't and accept my apologies]

New One Punch Man (original) chapter out!

https://fanfox.net/manga/onepunch_man_one/c152/1.html

https://doi.org/10.1038/s41567-024-02678-8

https://doi.org/10.1088/1681-7575/ab3fbf

Cheers!

cross-posted from: https://lemmy.ca/post/33867210

Here's a little physics riddle. It's really meant as a moment of self-reflection for physics teachers (I invite you to compare what answers you'd give within Relativity Theory).

We're in the context of Newtonian mechanics.

There are three small bodies. In the inertial coordinate system (t, x, y, z), we know the following about the three bodies (at a given instant of time):

• The first has mass 3 kg
• The second has velocity (1, 0, 0) m/s
• The third has momentum (2, 0, 0) kg⋅m/s

Now consider a new coordinate system (t', x', y', z') related to the first by the following transformation (a Galileian boost):

t' = t, x' = x - u⋅t, y' = y, z' = z with u = 1 m/s

Questions:

• What is the mass of the first body in the new coordinate system?
• What is the velocity of the second body in the new coordinate system?
• What is the momentum of the third body in the new coordinate system?

Can you give definite answers to these three questions, and motivate your answers with simple physical principles? Note that by "definite answer" I don't necessarily mean an answer with a definite numerical value.

Here's a little physics riddle. It's really meant as a moment of self-reflection for physics teachers (I invite you to compare what answers you'd give within Relativity Theory).

We're in the context of Newtonian mechanics.

There are three small bodies. In the inertial coordinate system (t, x, y, z), we know the following about the three bodies (at a given instant of time):

• The first has mass 3 kg
• The second has velocity (1, 0, 0) m/s
• The third has momentum (2, 0, 0) kg⋅m/s

Now consider a new coordinate system (t', x', y', z') related to the first by the following transformation (a Galileian boost):

t' = t, x' = x - u⋅t, y' = y, z' = z with u = 1 m/s

Questions:

• What is the mass of the first body in the new coordinate system?
• What is the velocity of the second body in the new coordinate system?
• What is the momentum of the third body in the new coordinate system?

Can you give definite answers to these three questions, and motivate your answers with simple physical principles? Note that by "definite answer" I don't necessarily mean an answer with a definite numerical value.

cross-posted from: https://lemmy.ca/post/29254007

https://www.lieffcabraser.com/antitrust/academic-journals/

"On September 12, 2024, Lieff Cabraser and co-counsel at Justice Catalyst Law filed a federal antitrust lawsuit against six commercial publishers of academic journals, including Elsevier, Springer Nature, Taylor and Francis, Sage, Wiley, and Wolters Kluwer, on behalf of a proposed class of scientists and scholars who provided manuscripts or peer review, alleging that these publishers conspired to unlawfully appropriate billions of dollars that would otherwise have funded scientific research."