Did you ever try a slide rule (or a Japanese abacus) for maths?
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Disable power-saving features in System Settings and set the display to stay on. Run high-energy tasks like playing 4k videos, running benchmarks (Cinebench, Heaven, Prime95), and keeping multiple apps open, including video editing software and virtual machines (if any installed).
Also, turn on Bluetooth and Wi-Fi, keep peripherals connected, and disable Battery Health Management. Use the Mac until it shuts down completely, then try turning it on a few times to confirm that it's fully drained. Wait 1-2 hours before opening the Mac to allow any residual charge to dissipate.
I’ve heard of slide rules, bud. I learned about their invention in my science history class last year when we explored ancient civilizations like Japan, China, Greece, and Egypt (🇪🇬) and Mesopotamia, which were the ones we knew about in grade school but delved deeper into their scientific history in this class.
Although I never used one, slide rules are fascinating pieces of technology used to measure various mathematical concepts like trigonometry, logarithms, and many others. They come in different scales, similar to the triangular scales I used in my engineering labs, in addition to pocket steel rules. Slide rules are also neat and slightly larger than callipers. I found more information about them here: https://sliderulemuseum.com/SR_Course.shtml
Thanks a bunch for sharing your tips on how to drain the battery of MacBooks before replacing them. Apple’s own guidance on battery drainage for repair prep is pretty similar to what you said: https://support.apple.com/en-us/100353
But even with all the battery efficiency settings in Battery Health management and those settings that slow down performance and extend the battery life of Macs on a single charge, it’s still a big step before you open it up. It also mentions that you can use FaceTime or Zoom to make calls on your Mac for a few hours with the camera on, and you can blast the brightness up all the way without auto-brightness, True Tone, and night shift. And even hours of watching movies or shows on YouTube, Apple TV+, and other streaming services like 5 or more movies per charge should drain it, based on the battery health and capacity of your Mac. Geekbench and cinema also tax battery life, which is a good draining factor since it tests cpu/gpu aside from that funny joke I posted before the mods came along to tell me more about it with terminal.
When you meant having peripherals to start plugged into the Mac to take a heavier toll on the battery to drain it for the battery replacement process, did you mean wireless peripherals and accessories like the Magic Trackpad, Magic Keyboard, Bluetooth speakers, airport base stations, and Apple TV remotes (some Macs let you control with a remote) instead of wired-up accessories like mice with USB cables or receivers and hubs? Also, that 2-3 hour process to let the Mac sit after the full drain and confirmation that it’s already out of battery is a great idea if you can take your time to repair it. It allows any remaining heat to escape the components, especially if it’s been pushed out for so long that the fans were running at full speed.
In my two years living mostly in the midwest (with the exception of school breaks), nothing is ever canceled due to bad weather. It's just never happened. One small drop of snow back home in New Mexico, and everything would be canceled. In the midwest, there could be a blizzard and everything will go on as scheduled.
Good luck. BTW my dad, an engineering by training had a slide rule he used. He showed me but I never got the hang of it, well I wasn't interested. He got the first complex scientific calculators as well - Texas Instruments. I played a sort of cannon game on it which was fun and required imagination. Math and calculus were not my friends. History was.
Man, all you guys quoting websites, your Dad and museums as your only exposure to slide rules, makes me feel old! I used one all thru Jr High and half of high school, did have a simple calculator my Sr year, then got a reverse-polish Hewlett-Packard scientific calculator the summer before I started college.
I had an F (57%) in Calculus my senior year of high school a week before graduation. My teacher was nice enough to let me retake a test to get it up to a C-.
So, guess what? We’ve got an atmospheric river dumping rain all over the West Coast right now. The temperatures dropped to the low 50s and 40s today and the rest of the week. And guess what else? My physics teacher caught a nasty cold and sent a last-minute message saying school’s canceled because of it. No wonder my iPhone had a priority notification that I had to check as I was about to get ready!
But hey, on the bright side, she extended our physics homework for the week to next week! That means I don’t have to rush to get it done. Now I can prioritize the other subjects that have homework due before the physics and engineering classes, like my politics and comp sci. And the best part? I can stay dry from these wet storms, they even make mudslides happen.
Thanks for your input. Calc isn’t my strong suit either! I must take calc 1 and 2 to graduate, and I’ve already passed them. It’s a prerequisite for physics classes at my college, but if you haven’t taken calc before physics, you must take it at the same time. It can be challenging, but I did it. I only had to retake calc 2 because of a personal tragedy—my nan passed away. I have a TI scientific and graphing calculator.
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There is a lunar eclipse tonight (23:30-00:30 approximately) and I want to photograph it, but it's going to be chilly to cold outside and, if it's still raining, I don't want to be out there. Maybe, it will be so cloudy that I won't be able to see the moon.
Dang that does obstruct it. In my work trip with NASA we had an observatory deck on top of our office building. 🏢 It was cloudy due to wildfires and smoke 💨 that were en route towards San Diego so our boss had to reschedule our observatory session to see stars and real planets thru the telescope from day one to day three of our trip due to the skies being obscured. At least we still did it and had some fun 🤩.
I used to have almost all of my photographic equipment that was weather-sealed but what I have now is a camera body that is and a longer lens that is not. A little water will probably kill it. Besides, 42 degrees F is not exactly warm.
Sorry, people, I'm feeling very whiny today.
I seen these notes before. When I was in my 12th grade natural sciences class a lot of the seniors among the lower grades in our mixed grade level class got such notes like that. These notes also prompted them to make a trip to the counsellor asap to discuss their grades and how it’ll impact their future college prospects. People were sleeping during class when we had exams even though we had easy open book exams.I feel that. My senior year maths class ended up in an F for many of us. Then, the counseling office sent me a "you're not going to graduate" note, even though I still had more than enough credits to graduate.
Out of 700+ seniors, 250+ dropped out.😁
Is it stored indoors in a dry place or in a shed?
I was wide awake in class. The thought of being attacked at any moment kept me awake.
I certainly had, and still have, a hysteria about scientific maths. When I took my compulsory Intermediate Algebra class for my degree, I was fine in class participation and understanding and froze during every exam.
That senior class maths instructor was difficult to understand. He loved maths but had difficulty relaying the information. That seems to often be the case. The instructor in that Intermediate Algebra class was the exception.
Not much on my mind due to the agony in my neck and shoulder. Work has been hard. Just using my mouse was very painful.
I had a lesson on them in high school (1976) but slide rulers quickly became obsolete about that time as scientific calculators just began to become widely available. The one thing that I do remember, was that slide rulers made from bamboo were considered one of the best because thermal expansion of aluminum rulers made the extrapolation of a third or fourth digit unreliable.
Enjoy the lunar eclipse; I've seen a few - they are spectacular, (when it is not too cloudy, or too cold).
In Europe, alas, geography dictates that we won't get to see the full eclipse on this occasion; in fact, given the cloud cover outside, I doubt that we will get to see any of it.
Thanks. If I can't see it to photograph it, at least, I'll be warmer indoors. I saw something a month ago about a pink moon and then, recently, about a blood red moon. That has some extreme implications that I can't even mention here.
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I was planning to at least look at the moon tonight. It's partly cloudy now, so don't know which part will dominate later tonight. If I see four horsemen, I'm hiding in a closet.
I've heard the four horsemen bit a lot lately, but we can't really talk about that, either.
My hardest class of all, Operations Research, had an instructor like that. Unfortunately, he also wrote the textbook, and everyone in the class was lost. I didn't finish a single problem on the first test, and knew I was eff'd.
I got an "A" on that test, and for the class; so did everyone else. Extremely easy grader, don't know if he was worried about keeping his job or what. And so now I know nothing about Op Research.