PhD candidate in yearning studies | Blocked by @lexfridman @dieworkwear @PaulSkallas
Beyond the Environment
- Tweets 9,821
- Following 1,021
- Followers 1,980
- Likes 117,493
Materials scientists watching everyone get excited about a superconductivity discovery knowing it isn’t real
31
146
4,617
804,022
how the fuck did this become the benchmark? Who is out here building nothing but screensavers?
o3-mini-high is fucking insane fr. 100 balls affected by gravity and friction bouncing inside a rotating 5d cube. you cannot get grok 3 with reasoning anywhere even CLOSE to this. absolutely ridiculous. oneshotted as well.
148
58
3,639
175,469
We took children out of factories a century ago
Now they play factorio
The children yearn for the factories
23
191
2,467
“Were you passing a value or a reference?”
“reference”
“SO YOU DO KNOW THE DIFFERENCE!!!“
15
133
1,771
64,265
it is lowkey insane that we subject high schoolers to this but also you cannot get too attached to one outcome because the process is extremely stochastic
8
6
1,557
60,838
Fulfilling a poll from awhile back, I should explain why the Cybertruck’s stainless steel panels require maintenance to keep good looking and why this is a difficult problem to solve for the Cybertruck
20
66
1,458
259,173
anyone wanna explain why there’s so much software? Why are SWEs like 2.5% of the us labor force. That’s a genuinely insane amount compared to all other engineering
95
23
1,195
293,610
just realized there’s a major unsolved issue for space colonization
how do you cook rice in zero gravity? We need water to stay on the bottom of the pot
89
29
1,163
52,988
the actual paper if you’re interested
researchgate.net/publication…
5
54
918
225,678
so many people are about to experience their first superconductivity hype-retraction-disappointment cycles
17
54
912
57,676
my AI hot take is almost fully formed but in short we’re going to look back on this as 6 months of llm-mania that preceded a period of major stagnation in the field
50
18
628
137,926
if this is in japan it’s a prop gun (hence the very sparky muzzle flash and small smoke volume)
8
1
573
19,827
I found a senior scientist position for a chemical company in NYC that asked for PhD
$90k-110k base
🤡🤡🤡
19
1
501
95,976
so many will learn how great automotive coatings technology is by the pain of its absence
3
10
460
159,311
an Apple pm in 2011, unaware of the cultural destruction he is about to unleash
“what if we made messages green so people know they’re on SMS?”
6
12
422
15,535
But the reality is not nearly as clean as these illustrations suggest for three reasons
1. Some iron rusts while the oxide layer is healing
2. Dirt, salt, water, aerosols and corrosive car exhaust all exist in the air
3. Surfaces are very rough at the small scale
1
7
302
22,678
If you live near the ocean or in a place that salts roads in the winter you’re at much higher risk for this! The surface will constantly be exposed to chloride ions that accelerate corrosion. This is a major reason for painting cars in the first place
1
3
297
18,846
this still pisses me off to this day. Centuries of refined educational prestige -> bond villain front company
7
290
16,858
Cybertruck uses a proprietary 300-series stainless. That is an austenitic steel with chromium and nickel as the major alloying metals. The chromium forms a very thin (<1 micron) layer of Cr2O3 which protects the iron inside from rusting
2
3
287
23,642
Here’s the images a cybertruck owner took two days after driving it in the rain. Small reddish-orange rust spots are developing
cybertruckownersclub.com/for…
4
1
276
28,579
This layer is is self-healing. A scratch that damages the oxide layer will eventually be covered with new oxide, preventing the rust from penetrating deeper into the steel. Hence the marketing claim is protection from “long term corrosion”
1
4
273
23,556
we need to return to ambiguous but slightly threatening defense contractor names like “Glenwood Kinetic Systems” or “Hawkstone Automation”
5
6
281
11,696
every aspiring cs dropout thinks they can fix dating, mental health or recipe suggestions at some point. It’s obligatory
12
5
268
17,130
dating apps are fucked in a whole new way
new 4o-image editing does not quite succeed the haircut test
It actually changes the hair really well, but also changes the face to be different enough to not be me anymore
Also my dog is derpier, and it can't stop itself from making the lighting look nicer
11
5
274
16,878
The combination of the last two poses a major challenge to the oxide layers. Salt and dirt can get trapped in the valleys. Chlorine ions from the salt form metal chlorides that prevent oxygen from repairing the chromium oxide layer. Iron is slowly etched and redeposited as rust
1
1
244
21,280
So in conclusion being a Cybertruck owner means worrying a lot about keeping it clean and dry or just embracing the rust spots. They’re not a structural concern for the stainless, but its going to be pretty hard to keep a Cybertruck as clean as in the marketing
10
5
241
17,303
This isn’t likely to become a structural issue but up close it certainly doesn’t look like the marketing (Which notably only promises resistance to “long term corrosion”)
1
232
24,886
However, once the steel surface gets dinged and dirty again from small rocks and dust you’re back to square one. You could clean your Cybertruck once a week or so but there’s a lot of surface to clean!
1
208
19,055
Perhaps there is a product that works well but more likely it will peel fairly easily under the abrasive environment of driving. Normal car paint is multilayered with both an electrically applied coat and primer that help basecoat and clearcoat stick really well
1
1
203
15,741
BREAKING: Lex Friedman was interviewing Yevgeny Prigozhin aboard his jet when it was shot down in the Tver region of Russia
11
2
198
35,868
Cleaning the surface will help by removing rust and salt as well as exposing fresh surface to reform the oxide layer. Citric acid and a scotch brite pad will do fine but this is a temporary solution. Also if you’re not careful the scratches from the pad will mar the surface
1
1
195
24,890
the sexual tension of “i want to kiss all the time but public decency forbades it” is amazing
1
4
187
8,265
You can provide some protection to the stainless using a process called passivation. This uses a dilute acid to etch away the iron on the surface leaving just chromium and nickel. Basically, it’s a boost to the oxide layer and will increase the time needed between cleanings
2
3
184
18,460
But this only delays the inevitable! Anything more than a superficial scratch will penetrate the oxide layer, exposing iron and causing rust spots to form again!
1
1
180
17,872
car paint is shockingly highly engineered to withstand scratches, uv, corrosion, weather and look good while doing it
2
169
7,007
nah this is based. Someone with the agency to teach themselves physics is worth 100 people who sneer at them
2
172
11,555
silicon valley contrarians will go “wow all these historic institutions have been hollowed out and reduced to status-mills” while excitedly talking about how they gave twenty year olds 100k to “accelerate humanity into the lightcone” with repackaged open source software
5
13
168
4,689
crop it in a little we have the perfect phone lock screen for when I'm bleeding out in the rain after avenging you
1
1
162
11,071
Opinions vary on this. Stainless steel is generally regarded as difficult to paint because many paints don’t stick well to the protective chromium oxide layer
1
162
15,264
colleges basically teach the same stuff everywhere but 95% of the value is the caliber of your peers and instructors. Go to the most prestigious school you can. The value of the network falls dramatically the lower you get
8
11
169
13,317
Okay so if a stainless surface isn’t protected it will form rust spots. Could we put a clear coat on the steel to protect it without changing appearance?
Maybe!
1
159
15,991
hey did you know the govt will send you $150k-2mil if you’re working on something cool and are willing to write a report about it? It’s called an SBIR or STTR
6
2
164
22,931
amphetamines were meant to power armies across Central Europe without sleep, not help you remember your keys
3
4
158
taking over a federal agency puts you way over the bar for being a “public figure” and any reasonable person should realize that when signing up for such a role
also govt has the resources to physically protect them. Very little in common here with the average person
1
162
5,408
critical support to insurance companies in their fight against the american medical association
1
152
10,410
someday these suicide drone folks are going to realize you can get rid of the cameras, propellors, guidance, wings and just precisely launch it with explosives over 10s of km far cheaper and faster and call it artillery
11
159
5,641
I hooked up chatgpt to a rotary phone with the whisper api and text to speech. Next step is getting the response time down!
Now i have the ultimate in retro-futuristic toys
11
22
149
17,638
We can’t use the bottom two layers and keep the stainless look so more than likely a clearcoat directly on stainless will be much less durable than typical car paint. Remember, the outside of a car is an abrasive environment
1
1
133
14,668
they didn’t learn from prigozhin’s mistake
Breaking: OpenAI board in discussions with Sam Altman to return as CEO trib.al/DTxl5tC
1
4
139
8,460