I have just started trying to cold email/linked in message people who have the relevant job titles on linked in. I just started yesterday so I can't tell you how its going yet. But I'm looking for people at companies large enough to have people dedicated to a specific subsets of mechanical engineering.
I think its just the nature of innovation. It takes 1/4 the effort to copy as to create new and this is true in marketing as well as engineering. Call it the second mover advantage, where someone else has already paid the cost of innovation, risk reduction and marketing (convincing people that they want x) and the second mover capitalizes on the new zeitgeist that they created but with lower overhead.
I don't want to be too combative because you do have a point that, especially with kids, its hard to not live paycheck to paycheck. But if you start early all you have to do is bust your butt and live cheaply for a couple of years and wait for compound returns to kick in.
Back of the hand says that if you invest 10,000/yr from 20 to 30 you'll have saved ~$100,000. And then 7% and with the rule of 72 is then:
30: 100,000
40: 200,000
50: 400,000
60: 800,000
70: 1,600,000.
S&P is closer to 12% than 7% which means you might be able to get away with saving less aggressively or earlier retirement. If you are able bodied and willing to learn a trade you should be able to make atleast 20/hr. I made 19/hr right out of college as a manufacturing technician and saved ~1000 month. You have to sacrifice to do this e.g. live with roommates in a cheap area, rarely go out to drink/eat etc., but if you start early, don't have kids and save aggressively its very doable. I didn't completely live like a monk, I bought a canoe and went canoeing most weekends and had a rock gym membership for one year while doing this and a martial arts membership the other year. I also lived one block from the projects in a 3-1 with 3 other people so rent was tiny and ate rice and beans + chicken thighs or eggs 3-4 times a week for dinner to keep the cost of food down. Its straight forward on median salary, but you have to sacrifice. The budget is straight forward too: The budget is simple, you get 400 for rent, 400 for food, 400 for transportation, 400 for bills (internet, electric, water, sewage), 200 for health care expenses, 100 float and 100 for fun. You can even do it in SF if you do two people to a room (just like dorms in college) in a large house--transportation will goes down, rent might go up and food probably goes up as well.
You could also work 50 hours a week and save that extra 25% of salary which again at entry level in the trades would yield you close to 10,000/year (minus taxes but hello IRA). The Dave Ramsey retirement calculator says that if you save 1500/month from 22-25 you with 10% returns and no savings after that you'll become a millionaire at about age 53. You can make that happen as an entry level mechanic who lives like I did who works an average 10 hours of overtime a week.
If you had a million you could also get a loan with interest less than "risk free" assets. E.g. The stock market makes 7-10% but you can get a loan for 1-3%. So 1.5x your returns then become 12-16%.
Perhaps you can invest in lower risk dividend stocks which will pay out your interest + a little and 3x. If we assume those stocks only make 4% but also pay out 3% then you are looking at 16% returns. Moreover when those dividends get raised you are doing even better.
And the junior will learn which things to learn. I certainly think you should allow juniors to code review senior coders work if for nothing more than mentoring, but I am sensitive as to why an overloaded senior would balk at the idea.
Yep and how to construct, the naturals from set theory, the integers from the naturals, the rationals from the integers and the reals from the rational. I've forgotten the details at this point, but I remember the conclusions.
But you can define multiplication based on abstracting repeated addition. That how we did it my analysis class, although I forget some of the details. So if you say multiplication is repeated addition, it really isn't a lie.
I think the issue is that many of us are poor communicators (myself being number 1) so we say nothing I can do will help you instead of I can't teach linear algebra, numerical analysis and do the code review in an hour. Therefore putting a junior engineer who has a weak math background on a code review for my new algorithm which uses spectral sparsification for approximating matrix inverses in n log(n) isn't a good idea.
You assume that Apple is telling the truth. The cynic in me thinks that they narrowed the definition of tracking and follow in a legal sense but not in the way we would think of it. Or they are outright lying. It is also possible that it isn't apple doing it but a third party doing it on Apples behalf.
I would saw that copy.ai is a low but not zero stakes application. It develops a draft of copy for ads, landing pages etc. which you can review before taking live.
I am familiar with it in the aerospace industry. Digital Twin implies a higher degree of fidelity in terms of importing data from sensors and modeling of physics than just model or simulation might apply, even though it is a model and simulation.
For GE's digital twins in the jet engines, they will build a high fidelity representation of the each individual engine based on as built parts, and then they will simulate every flight based on accelerometers, force sensors, humidity sensors, temperature and pressure sensors which they have placed in the engine. This is different from a general model or simulation which will build a model from CAD and then have a series of expected flight simulations and use that to predict life of the engine.
They also cap profits based on the original bid size. So you bid 20 million for the F35 program you get 1.5 million profit. When you overrun the 20 million to 30 million you still only get 1.5 million "profit". Typically you also have to go ask for that 10 million in piecemeal as well. I need 500k to do this and 500k to do that and the program office approves or disapproves.
Of course, the contractors probably skim a little bit off the top of the 20 million back to themselves. They might for example bill for machine team on the CNC or charge $200/hr per an employee and only pay $60 (note that they have expenses for training, downtime, office space, equipment and management which that 200/hour needs to account for so the employee isn't getting screwed that badly.
Less moral contractors might build projects which intentionally fail but meet the specifications so that the gov't needs to execute a change order at which point they would get additional fee as part of the change order, however with the DOD you can get your company put on a blacklist which will mean you cannot win any more DOD contracts. But I have heard of a California construction company doing that repeatedly over the course of 30 years successfully. In the dod world, most companies try to propose improvements to the original contract. Typically they will have yearly goals associated with submitting and winning change orders as its an easier source of revenue than bidding and winning new contracts which typically have a 30% win rate.
I am making a comment just so I will see the project later. Swamped at work but in a week when I have some free time... I feel like a kid waiting on Christmas with presents under the tree.
There were no major causes it was a systemetic failure across all sectors due to nothing being winterized. Gas failed, coal failed, wind failed, solar failed, the grid failed. Its politics to point only at gas or only at renewables, it was systematic, which might be what you are saying.
Georgia and Atlanta have unsustainable growth which their natural resources can't support and are trying to pass off the externalities onto their neighbors. I am biased as a former resident of both Tennessee and Florida.
Very few people articulate the upside of the data sharing well. And that is the internet allows people to connect with the long tail customers. All of a sudden I can make friends with other worm farmers in the world. Not only that, but using this data I can effectively find other people who would probably be interested in worm farming and tell them about it. And grow the community of worm farmers. Not only that but individuals can now build niche businesses based around worm farming because they can find their potential customers. You can replace worm farming with every esoteric interest.
On one hand the internet and the big data platforms of Amazon, facebook etc. have allowed this economy and communities based on esoteric interests, but on the other hand they are able to manipulate us else like nobodies business and greed ensures that if it isn't being used adversarially now it will certainly be in the future.
Well the feedback loop is much faster with a solution manual than a professor. I agree there is a line between leveraging the solution manual to teach yourself more quickly and just copying the solution. My quantum mechanics professor would give us the solutions to the homework before we were expected to turn it in so that we could learn from his explanations.
I agree that you have to a some point learn how to approach problems which you haven't seen before, but almost every field I have seen, the right way is to start by copying solutions of others until you understand it and then riffing from there. My father was a professor/researcher and he said you shouldn't start a problem unless you knew what your solution was and what you expected it to provide.
In fact much of the research work I have done is see if technique from field x will apply to field y after I have become an expert in field y. Or push to edge of field y and take the next logical step. But pushing to the edge of field y almost always requires working through the solutions of the people who have been there before rather than reinventing the wheel.
Is it really cheating. If the goal is to learn the material using someone else's solution is incredibly helpful and can expedite the learning process. If there is a process to master a skill in 20 hours and another way to master it in 5, only the fool would chose the 20 hour process.
When I took electrodynamics the first semester I worked through all the problems myself. I started on Sunday would ask questions Monday and Tuesday where I was stuck and the process took me 20ish hours each week. When I took the second semester, a couple of the other students had the solution manual. I would attempt the problem, then when I got stuck, I would consult the solutions manual, understand what the solution manual was doing, then go back to my work and understand the problem. It would help me track down errors I made in algebra. I ended up spending about 10 hours a week on the problem sets, understood the material better (as well as the material from other classes) and got better grades (on both tests without solutions and homework).
I used to tutor kids in physics and one of my students went from a C at midterm to an A because there was real time feedback for the homework he is trying to do so he was able to grok the material. Worked out solutions to the homework problems is the next best thing.
When I was teaching myself machine learning, it was the same deal, I started working through other peoples worked out problems, it helped me grow my programming skills and learn machine learning more effectively. I would take their code break it down, add comments to lines I didn't understand on first reading and ran the programs.
Learning from solutions is one of the best ways to learn. And it is stupid to have to do twice as much work for the homework problems because some kids might cheat themselves. The alternative for students who have gotten behind or don't know the background is that they don't learn the material because you don't have . The solutions manual gives them an opportunity to catch up.