frickinLasers

6 ms·

31.
by frickinLasers 2y ago
Because airships are simple and cheap, and as the blog post says: if they can get cargo point-to-point across the Atlantic, they will put air freight out of business. If they can't do that, at least they could be competitive.
32.
by frickinLasers 2y ago
I take your point in that there are a lot of naysayers here, as there were with Hyperloop. There were also hundreds of volunteers working on the project, who clearly thought it had a chance of working--and many more saying rockets would nev
33.
by frickinLasers 2y ago
I'd bet a bunch of former SpaceX engineers will figure out a solution.
34.
by frickinLasers 2y ago
It's really frustrating that there's not a way to educate the public on simple concepts like this. You'd think the out-in-the-open development approach of SpaceX, for instance, would make it blatantly obvious how much money t
35.
by frickinLasers 2y ago
> (about $230M saved by not using SLS) Since SLS launches are now upwards of $2B per launch by some estimates, how does this math work? Wikipedia also suggests $2 billion saved. https://en.wikipedia.org/wiki/Space_La
36.
by frickinLasers 2y ago
Journals are incentivized to publish fantastic results. Organizing raw data in a way that the uninitiated can understand presents serious friction in getting results out the door. The organizations who fund the research are (finally) beginn
37.
by frickinLasers 2y ago
Academic scientists aren't lobbyists, and politicians aren't giving us money. The funding institutions set research goals. Those funding institutions (staffed by people who actually understand science) don't conduct the resea
38.
by frickinLasers 2y ago
I had a perfectly pleasant experience opting out. The agent simply smiled at me, asked a question to verify that I was the person on the ID I had handed him, and off I went. It was much easier and less gropey than opting out of the mm wave
39.
by frickinLasers 2y ago
Have you tried https://www.xometry.com/ ? They have a network of vetted shops who bid on jobs when otherwise unoccupied.
40.
by frickinLasers 2y ago
Makes one wonder what the world will look like in 50 or 100 years. Which sci-fi alien civilization will we most closely resemble?
41.
by frickinLasers 2y ago
Yes, I can see many similarities. - Your code specifies design constraints--you need it to do X and Y and Z. - The engine designers needed the engine to fit in X and operate at Y temperature and not blow up (Z). - The compiler takes
42.
Test firing of a 3D-printed rocket engine designed through computational model(leap71.com)
161 points by frickinLasers 2y ago|70 comments
43.
by frickinLasers 2y ago
I shortened the title a bit from "LEAP 71 hot-fires 3D-printed liquid-fuel rocket engine designed through Noyron Computational Model." From the article: - First rocket engine built entirely through a computational model without hu
44.
by frickinLasers 2y ago
Put in a different context, this is like lifting your fingerprints off your car door, then paying you a tiny bit of company stock after selling those prints to your police department. It makes so little sense that it's hard to argue ag
45.
by frickinLasers 2y ago
Basic training isn't supposed to be a healthy work environment. It's about breaking the recruits down and reforming them into perfect, interchangeable cogs that won't interfere with the operation of the machine. Recruits leav
46.
by frickinLasers 2y ago
Your windows open differently too. Instead of angling inward/outward along either of two axes, ours usually just slide up-down or left-right, remaining firmly attached to the window sill.
47.
by frickinLasers 2y ago
Wow, this is an illuminating map. Restores a bit of faith in Western values.
48.
by frickinLasers 2y ago
> how come reusable rockets is not a "wild bullshit idea"? I don't understand the question. Could it be the fact that a Falcon 9 just landed after its 20th trip to space? Seems pretty reusable to me. > How come people w
49.
by frickinLasers 3y ago
I think if that study were done every year, we'd see the "happy again" age trend older and older, as retirement becomes less and less feasible for the majority.
50.
by frickinLasers 3y ago
I don't interview well. I wrote a program from scratch, tweaked it throughout my PhD, used it to get results for my thesis. I am quite confident in the robustness and accuracy of the program. I couldn't explain my code to an inter
51.
by frickinLasers 3y ago
Counterpoint: My bank, which has next to no physical branches, no longer permits depositing a check from a desktop. I must either use the phone app, or mail the check in.
52.
by frickinLasers 3y ago
I think it's a poorly titled article. The salient points for me were: - Braking produces [probably] unhealthy dust. - Much of that dust is electrically charged, meaning sweeping it out of the air (perhaps before it leaves the wheelwell
53.
by frickinLasers 3y ago
Nice hot take. Did you read the article? Their proposed solution--using the charge to facilitate removing the particles from the air--seems more helpful.
54.
by frickinLasers 3y ago
What did wikileaks show about the sophistication of tech surveillance?
55.
by frickinLasers 3y ago
https://arstechnica.com/security/2023/12/exploit-used-in-mas... Looks like criminals were using it for four years undetected.
56.
by frickinLasers 3y ago
It's also the wrong hand. But I think the little o looks more like a head in this case. O7 just looks like a hex code or something.
57.
From forest to penthouse: What it takes to build a high-rise out of wood(msn.com)
2 points by frickinLasers 3y ago|0 comments
58.
by frickinLasers 3y ago
Yes, but I think the relevant metric is deaths per 100 million miles driven. Self-driving cars haven't even traveled 100 million miles.
59.
by frickinLasers 3y ago
How would you even begin to gather the necessary information/materials for that?
60.
by frickinLasers 3y ago
and the tea?

More ›