1,334 karma · joined March 4, 2009
Beyond that, efficient use energy production requires some place for it to be used, Generally home and industry appliances.
Of course, there are clear examples when metric is both easy an intuitive. In everyday usage there are many cases where Imperial is beneficial (cooking -- metric is poor for individual servings, height and weight metric is inefficient as the modal height starts with the same digit, temperature requires more digits).
If you can start saving $100 a month, and ramp that up over time you'll see yourself become more secure and less anxious in a relative short time.
From your spending, everything is in line with a comfortable lifestyle. Of your expenses, only the food and car seem like opportunties to diet. I would suggest finding a way in to a second hand car for half you monthly cost, and trying to get your monthly food budget to around $800. Eat out less, eat less prepared meals, and ask your children to help prepare meals.
For the "exercise more" side of things, finding a higher paying job is the simplest way forward. Perhaps the most straightforward way there is to ask for a raise, but also understanding your market value by interviewing may be beneficial. When you land an increased salary, don't change your spending habits.
For me, the absolute best written is Age of Wonder by Richard Holmes. It covers a large swatch of British Science from Newton to Maxwell.
Other good reads are
1. The Invention of Science by Wootton (which is very academic in style),
2. The Wizard and the Prophet by Mann
3. Galileo At Work by Drake
4. Newton by Gleik.
For coursework, I would take notes. At the end of the day, I would reread the notes and complete them. Completing them means correcting errors, filling in details from examples, and using assignments and course material embellish the notes. Embellishment means adding notes of personal interest from other course material, and also adding examples from problem sets. My notes were my source of truth, and I kept them in good order. For exams and future coursework, I would only use my notes since they were complete.
In my professional life, I consume a lot of material but do not take notes. I find that there are two important aspects to learning. The first is high exposure to material. Being able to put a name or provenance to an idea is helpful in finding my way back there again. The second, which is similar to what nickjj mentions in a comment above, is to close the loop. To wit, my engagement with material is to find aspects for which I can test it outside of the scope presented or examine in in contrast to another idea. By engaging with the idea, I am able to come to an understanding of its verisimilitude and utility to me.
In the later, I do not take notes while attending lectures and reading. However I maintain complete lab notes for my work. Lab notes include random thoughts, references, uri:'s of data sets, links to papers and wikipedia articles. The lab notes are written for me, and are mostly in chronological order. By the contain as thorough an appendix as I have the patience to maintain.
On many topics people rebel against this attitude, because they see it as a moral imperative to be an activist. But that's not how I choose to live, and I find it is easier to be happy this way.
The term 'banned' seems to get more clicks and more emotional reaction.
First, pick a topic that you believe you can be fully engaged with. Here are some examples. But you can look at the threads of these from middle school through first year graduate school.
* Geometry (From Euclid to Topology to tensor analysis)
* Linear Algebra (From vectors to Convex Optimization)
* Calculus (Trig to PDEs')
* Algebra (From Groups to Number Theory)
Second, is do the work. With math is easy to trick yourself, in the moment, that you know the solution and understand the concept. But that mistake acrues, you get to a point where everything is opaque and there isn't a starting point without a hint. This feeling of self-assurance needs to be challenged. You need to do the work, rewrite the proofs, do the exercises completely, and explore the concept on your own a bit.
https://daytrippin.com/2018/10/08/john-lennons-lifelong-obse...
* ANSI C, Ritchie and Kernighan. This was my first real programming book.
* Essential C++, Lippman. This book helped me move from C to C++, and I usually reread the series prior to interviews.
* Introduction to Algorithms, CLRS. I've read this cover to cover many times, and it motivated me to go to graduate school.
* Zero to One, Theil. This book made sense of the world of tech startups.
* The Innovators Dillema, Christensen. This book shaped my world view of how business should operate.
However, for this discussion, my personal experience is surprisingly in line. I have worked with many colleagues whose primary decision to not have children is a result of worry over climate change. I have seen this response break up multiple marriages, motivate people to quit careers, and sprial in to depression.
One thing that I believe my kids has responded well to is the re-assurnace that when they have earned money it is theirs to do with as they wish. It won't be confiscated for punishment, and we don't force our children to make specific purchases. Further while both parents will often advise on purchases, we don't stand in the way of kids making bad decisions (quality, quantity, utility, etc).