immmmmm

Or maybe just change our habits, travel less and slower.

I just love long rail trips, often do Switzerland-Tunis via Palermo to see my in law family. Best trip ever was Tbilisi-Zurich via Batumi, ferry to Odessa Kyiv and Vienna.

Adaptation is not an alternative for mitigation. We have to do adaptation AND mitigation (drastic reduction of emissions).

We can stop CC, science is very clear on this.

I have worked half of my life in both fundamental and applied science, I know how this work. In particular you can refuse jobs you deem unethical.

Why not funding energy transition research for instance. It’s know to science for half a century we’ll cook to death if we don’t phase out fossil fuel energy.

And by know, I mean there’s literally millions of papers on the topic.

Oh yes, they had some of the best climate scientists back then.

It’s somewhat a scale up of what the tobacco industry did, same strategies, etc

a project in collaboration with the oil and gas company Exxon Mobil

I find it a bit dark that, at a time people, crops, forests and biomes are dying due to extreme heat caused by the fossil fuel industry’s reckless behaviour the last 50 years, the said fossil fuel industry funds research on exotic rheology.

When I was doing my phd, around 2 decades ago, I was often going to the library’s compactus to fish for a Phys Rev from the 80s. Back then papers were sparse and expensive. But the quality!

The Higgs boson is 3 papers, 6 authors and 6 pages in total!

At the end of my phd, 30++ pages slop papers were the norm.

Nowadays, well..

The paper by Higgs was one page. The guy probably published less than a hundred pages in his career.

One reason that made me abandon a career was the disgust caused by the publishing frienzy.

And now tokens..

It’s how gauge theories work:

- fermions (charges) are in the fundamental representation of the gauge group, here SU(3) so 3 Colors

- bosons are in the adjoint représentation, for SU(3) that 8 dimensions

agreed, when you start needing the the hodge star, diff form loose quite a lot of their interest.

i'd add it's quite nice in string theories for RR fields and coupling to D-branes, where writing 10 anti-symmetrized indices quickly gets annoying.. and topological field theories..

from a theoretical physicist point of view, i find GA don't add much to the standard tooling ppl use, i.e. Lie algebras, Clifford and (sometimes) differential forms. while it's always nice to have a formalism that "hides indices", in most cases (for (super-)gravitation at least) just writing tensor/clifford/lie indices is just much faster and less error prone.

i used to use differential form for gauge theories, einstein-cartan gravitation and ramond-ramond fields.

also, in a paper, we used O(D,D) clifford algebras/spinors to represent differential forms, which worked quite well in our very specific case (appendix A)

https://arxiv.org/pdf/1304.1472

ps: i had colleagues that worked on GA for ML in robotics but wasn't really impressed by what it accomplished

Well congratulations, you just stated the equivalence principle that led Einstein to GR (you need special relativity and a bit of maths and you’re there)!

As an occasional organiser of techno parties point 21) made me gently laugh. After decades of experience I’ve resorted to:

1) get the best quality, ultra high headroom, system money can rent

2) get a high quality monitoring system for the DJs

3) find a venue as remote as I can

4) go turn down the master volume on the main desk every now and then :)

I have a good friend who’s in the “hi end desktop cnc” bizness (with some very cheap models). Asked why he doesn’t do 3D printers (he designed plenty) and he told me the market is SO competitive and products so cheap it’s impossible to compete.

Designing a controller for his machines and as much as I would love to put the thing as OH, I don’t even think of it.

His company:

https://www.badog.ch/

I’m doing a bit of BREP for GIS and even in 2D with line segments only the problem is really non-trivial, a lot of edge (pun intended) cases to take care of. Type system helps enormously, so probably rust will be a win here (I think I saw a project along those lines).

That being said, for CAD (personal usage) I switched from Fusion 360 to Freecad 1.0 with almost no project and the latter is an order of magnitude faster.

Looking at some comments suggests quite a few

The beauty and power of the Noether Theorem is what pushed me to theoretical physics.

I consider it one of mankind’s greatest achievement.

I have been using pixi for half a year and it has been fantastic.

It’s fast, takes yml files as an input (which is super convenient) and super intuitive

Quite surprised it isn’t more popular

As someone that has been in the synth diy world for a quarter of century, I couldn’t agree more!

I do. With kicad and freecad 1.0rc. It is a joy and a pleasure.

Did he tackle Lorentz invariance?

BFBS: BF Blockchain Solutions BFF: BF for Finance

Have you considered porting to the vacuum tube 1 bit / 1 Hz MC14500 clone?

https://hackaday.com/2021/12/27/single-bit-computer-from-vac...

There's a discrete risc-v cpu too! https://www.hackster.io/news/filip-szkandera-s-pineapple-one...

i used MIPI sensors on jetson, and while the drivers were provided by the manufacturer we wrote a a python/c++ library based on V4L2 to acquire images

It is very disturbing indeed

am i dreaming or you are pushing old conspiracies on HN???

https://skepticalscience.com/Climategate-CRU-emails-hacked.h...

For a global shutter sensor that big that seems kind of reasonable.

Been buying smaller sensors, building multi camera machines, for researching projects and I like that thing.

Open hardware, i wish I was doing cinema to buy that thing, gorgeous!

Oh you should go say that to farmers close to the equator whose crops are failing due to climate change.

All that while fossil fuel companies receive 7000B$ of annual subsidies, and spend billions yearly to fuel disinformation.

“Magnets that accelerate particles”… the only particles that a magnetic field can accelerate are magnetic monopoles, and they are yet to be discovered.

The lhc, as well as all accelerators, use electric field to accelerate particles. Supraconcting RF cavities.

Since it’s not very practical to work with 7000 billion volts, physicists use magnets to bend particles paths so they pass several several times through the rf cavities.

At these local scales (and altitudes) it’s often called solar radiation management.

The MEER is another example but for humans (with mirrors): https://www.meer.org/

As always these only buy a bit of time if not coupled with massive and swift CO2, methane, chemicals runouts, etc etc etc reduction, didn’t check if mentioned in the article.