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Cake day: July 3rd, 2023

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  • so-called “gravity batteries” is pretty much exactly a dam with a mini-dam/reservoir at the bottom. When there is an excess, you run the motor to reverse the waterflow to pump uphill into a highe-elevation water retention pond/mini-dam.

    This also helps reduce the amount of outflow water “lost” due to high-demand. Since you could take almost a day to fill the bottom reservoir and spend “wind”/solar to pump back the “lost” water downstream back into the higher-level reservoir.

    Even if things are inefficient wind/solar are “renewable”, so you can keep “wasting” excess to replenish the dam and still make enough money back ( think in-terms of drought, flooding, windy, sunny, cloudy, etc ) you can basically keep the high-output “system” always topped-up with water. And still supply water + electricity as it is needed. There is no “downside”.

    Not everyone agrees. So opinions can differ.


  • maniii@lemmy.worldtoLemmy Shitpost@lemmy.worldStudy hack
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    2 months ago

    If you use Google Meet or Zoom or some kind of Desktop recording software, you can record yourself talking between blank or paused video while taking the online course and have the transcript + your own voiced notes with the recording as review material + courseware.

    If you take the trouble of revisiting , revising, re-note-taking you might end up with better understanding and even self-generated workbook + answers too ( including your mistakes and what is a false trail or false path and the correct approach ) .



  • Driving manual takes BOTH Theory and Practice.

    1. Replay potential scenarios in your head and try to predict how you will react.

    2. Re-examine your realtime reactions on the road.

    3. Learn both rules of the road and real-life motorists reactions to rules.

    4. Safety - Safety - Safety. If it feels unsafe, get off the road safely and wait it out.

    Manual driving tips.

    Use the emergency-parking-hand-brake for hill-assists.

    Practice dual-brake-accelerator press/release.

    Practice clutch-release-hold with no brake-accelerator ( fully depressed clutch, quarter-release, half-release, no-clutch … does the vehicle jump forward, at what point does it start creeping forward, what noise is the engine making, how does the gear-stick/shaft feel smooth or vibrating or extremely-stuck, etc etc )

    Practice a reliable gear-stick-shift-shaft action. Turn your wrist outward and push horizontal, and up for 1st-gear. Neutral with a downward wrist and wiggle along the central neutral line. Turn wrist upward and firmly push straight forward for 3rd-gear, and tap gear-knob down and wiggle along central neutral line to confirm gear-stick is in the neutral, etc etc.

    So by judging how traffic behaves and by establishing clear personal good gear/manual habits, you can improve your reactions.

    Look forward of the vehicle for less than 10 meters ( 30 feet ) and drive below 60 kmph ( 40 mph ) if you can’t smoothly handle the manual transmission. Increase by 5 feet look distance as you get more comfortable over several months.

    Don’t drive in traffic, park if you feel unsafe without causing problems.

    Avoid steep shopping mall parking lots and narrow spaces until you are comfortable handling the manual vehicle.

    Add wing mirrors and antenna at the edges of the vehicle corners to help visually identify the area around the vehicle.

    Best of Luck and Have Fun once you are good at it. If after 2 years you aren’t getting any results, then manual may not be the best choice for you and you may need to give it up. Automatic transmissions are now making amazing progress and reliability.

    No shame driving automatic transmission vehicles.


  • Any sanitation worker, sewage diver, drain block remover, in most of the third-world countries.

    We need city drainages to be repaired, cleaned, maintained, and managed with draconian safety, extremely well-compensated, hazardpay up the wazoo workers comp and complete-healthcare all covered for life. So many workers are just abused for the lifeline work that keep a city’s arteries from getting clogged and flowing smoothly.

    I saw how Korean drain-workers do it with high-pressure water jets and incredible efficiency and knowhow talent of their vital job. I wish we didnt have the corruption that prevents this type of training, trained worker, worker pride in the essential labour that they do.

    Same goes for recycling and reducing waste. We humans don’t do nearly enough and the Top-20 major corporations that cause 80% of worldwide pollutants go unchecked and unpunished.



  • So, since this is related to your course and a required part of assignments, get things in writing,

    1. Let the Dorm and ISP know that you need an exception due to coursework.

    2. It might be in your best interest to temporarily invest in your own internet,I think 5G might have low enough latency to manage the connection.

    If all this is for one semester until you move back ? Just get a cheap mini-PC install pfSense or any other firewall/router software to isolate all your devices and Wifi router from the rest of the network. I believe some people have mentioned MAC-spoofing and TTL-reset as ways to bypass detection. And if anyone asks, you can show your written communications and your course requirements.

    Always be on the safe side when it comes to dealing with academics and private orgs.

    There might be a Dept Counselor or Rep you can discuss about your requirements. Even professors can help with some of these kind of things.






  • maniii@lemmy.worldtoTechnology@lemmy.worldStudent dorm does not allow wifi routers
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    2 months ago

    Mighty unpopular opinion here.

    OP you are there at the Uni to learn to grow and pass the course+exams. If you need to do extracurricular activities, please setup time at home, travel home to do those things.

    If home is faraway and you still want to do it, find a reliable off-campus-non-dorm location and do your stuff from there.

    Your main objective is to get through Uni without falling behind and managing your time and effort wisely. If you fail Uni because you focused too much on non-essential activities, be a responsible adult and accept the results of your adult decisions.

    Edit: I never said that OP shouldn’t do non-Uni activities. Just that time+effort has to be MANAGED between the two. Life isnt fair and life doesnt give two shits if you fuck up. That is what being an adult means.

    Edit2: I can see people commenting on Universities imposing mandatory dorm fees. Do you people not choose which university to apply and get accepted? Did you not think…“this uni is very strict, or this uni has a lot of on-campus resources, or this uni has great course-materials, etc etc” … and it would also include “this uni dorm is optional/mandatory and I can live there cheap or live outside expensive or it is bum-ducking nowhere but fields/forests/wilderness” … you did choose that uni to attend and paid up ?


  • A lot of Unis have IT on a shoestring budget.Especially the CompSci dept have the most idiotic IT “professionals” working there.

    Usually it is the Sciences dept like Mech-E or Tech-E or Elec-E who run massive Compute nodes for Rendering Physics or Fluid dynamics or something something research …

    Unfortunately, the Unis that have massive student dorms on-campus tend not to isolate their networks properly and allow students to directly connect to all depts Networks without any barriers. The isolation happens between LAN and Internet which is where most of the controls and filtering happens.

    It would be nice if each dept had their own VPN servers and proper network isolation at the LAN instead of the crazy monkey wiring everything to everything else on-campus.






  • I had an entire LIFETIME in ONE night. Dream was super realistic, but it was all anime waifus. From earliest childhood memory till old age and that final darkness basically that last moment woke me up with a start. I never imagined that an entire lifetime in one night dream.

    I don’t think I ever had such an experience ever again. It was just one time. Never to happen again so far.