Do you do any simple experiments? Or track things and analyse them?
Recently downloaded the phyphox from F-Droid and thought about this while thinking about what all stuff I could do with it.
Are there any online resources about such stuff?
What all things have you(or people you know, in your locality etc) done along that line?
And not only big thigs, if you're tracking other stuff, please do share your experience on that too.
Sure I'll go. I grow vanilla as a side project to many other things. I've done some controlled backyard experiments with replication between my vineyard and another in my community to look at the impact of temperature on growth rates.
We plan on publishing but I've got enough day job publications going at once right now that a hobby paper is something I have a hard time justifying the time for, but the data is done and collected. We just used one and paper.
Sorry if this seems strange, but do you do data analysis? If not, I’d be happy to explore and visualize the data! It’s always interesting to me to do it.
Yep. 15 years in the trade. I even put together some cute python code to make bar plots where the bars were in the pattern of Vanilla vines with leaves in them. I just literally do not have the time to get back into it because I'm either writing or analyzing on 5 other papers at once and I've got two teams of analysts on other projects that I have to provide leadership for. It's just not something I can justify spending my free time on.
It's important to me that my hobbies don't become burdensome so I'm more than happy to just let it sit for a time where I have a couple free cycles to write it up and publish. Well probably just get it out as a note in a local ag journal. We took the data with the intention of building a growing degree day model for Vanilla.
This was years ago now; I did an experiment to test various AA battery chemistries in real-world conditions to determine if the price difference was worth it. This was tangentially related to amateur radio, I first got the idea from overhearing a conversation on 2 meters.
I used rechargeable Ni-MH, zinc oxide "Heavy Duty" batteries, alkalines, and lithiums to play a lot of video games on my Nintendo Wii. (the batteries in the controller) I found that the Lithum batteries performed less than twice as long as the alkaline batteries, nowhere near worth their price. The "Heavy Duty" batteries were less than half of the alkalines but that actually made them more cost effective. The Ni-MH batteries had the shortest single charge of them all, I forget what it worked out to be the break even point.
One thing I did note was the Lithium batteries were noticeably lighter than the Alkalines, so if weight is an issue they may be a viable option.
I've used phyphox for lots of stuff. It's great for looking at raw data from your phone's sensors but there are also a lot of great experiments built in to the app. The university that develops it has a playlist showcasing them all, it's a great way to spend a weekend.
I wanted to test whether a cheap piezo buzzer could be used as a crude ultrasound probe. It worked, so I tried to upgrade it into full-blown ultrasound imaging. The third iteration of that did produce an image, using a piezo buzzer cut in sections, a cheap FPGA, a MCU, custom PCB and mostly 3D printed pieces (acoustic lens, etc.). Aside from the expected low resolution, turned out that it wouldn't image anything beyond about 1 cm.
I did make a fourth iteration of the device, much smaller and theoretically much better. But life happened and I never finished the coding part.
Well, one thing I've noticed in most measures that involve mental things (mood, performance...) is that lots of things seem to be cyclical. For example, mood is often alternating (more so in my case), but productivity and burnout also tend to repeat predictably as long as the routine doesn't change.
Also, I'm maximally performant in tasks when most stable (good sleep, moderate mood, medication, no drugs...), but maximally productive when in a better mood.
I enjoyed using phyphox while on a plane recently. I found it fun to track the pressure and to see how it loosely corresponded to my own subjective experience of ascending vs descending.
I can't recall any "useful" things I've used the app for, but I really enjoy having it — it makes me feel powerful. Like, it's nice to think that if I did have some ideas of experiments to run, I could. It feels fitting to be able to access the sensors, because there are many ways in which our electronic devices nowadays aren't (or don't feel like) our own, so this feels like a small amount of clawing back power, even if I'm not using it for much.
I checked out phyphox and it's so cool. Gonna show this to my wife who is a high school science teacher. Young students love running experiments like these. When you give a curious mind a tool to measure the world with, and set them loose, good things happen. Thanks!
Probably not the answer you are looking for, but I run a ton of math on gaming. Doninos, Warhammer, Magic the Gathering exct. I used to play in a lot of tournaments. Not professional, I do not want that stress. But, I usually placed top 4.
I keep track of prices in cost per kg (or liter) so I am not fooled by shrinkflation and so that I know when a good sale is, without having to remember all prices. Basically just have a giant spreadsheet with the numbers.
Learned a lot and noticed that many ideas and mental images about it were bullshit.
What were the main ones?
Some relatives of mine have been thinking about rooftop solar and had talked about it to me too. Didn't comment much, other than generic talking points of warranty, on whether is on or off-grid etc.
Not sure if my "notes" apply unless we share similarities in geographic and market.
Backgroud:
1\3 of my country is in the arctic circle
During summer sun hardly sets, during winter is hardly rises (up nort, not at all)
Energy is produced mainly with Nuclear (main bulk), hydro, wind, solar (lately on the rise), coal (transfered to backup)
it doesn't get hot, so cooling is rarely needed during summer,
from may to september electricity is mostly dirt cheap. Nickle and dime stuff. It has even been negative. During winter it's quite expensive.
most panel systems here use some amount directly but sell most of their production to the grid and then buy it back when there's not enough own production. No batteries involved. Energy broker takes a cut and so does the grid company.
Salesmen that have come to my door to sell panel sets use annual average energy price and even that has been exaggerated. It totally ignores that you will be producing most when energy price is lowest. Their sales pitch calculations are designed to be hard to follow and then they rub the wonderous estimates in your face. You can't base a reclamation on unrealized results.
People who say that they have saved a ton of money with panels are usually those who have had fixed value pricing and totally ignore the fact that they would have saved most of it during summer time having energy market based pricing, which they now need to have in order to sell their solar juice to the grid and later buy it back. They of course suffer during the winter, but ignore that because that "has nothing to do with panels" (because it's dark and panels are covered in snow.
If I'd been connected to the grid, counter-intuitively the panels facing West would the most usefull, not the ones facing South, because they were active when I used the most. In our market the more you can use your own production the better and this high North sun is still somewhat usefull late in the evening.
If off-grid, lithum based batteries seem to be the only viable option. They are however a fire hazard. Up here if you store them outside, you need to insulate the space and keep it above freezing from December to March and that takes energy, when it's most expensive. You can dismantle your battery setup and store them unconnected more safely indoors, but that is not for the layman.
I'm using 220V/6kW heating element. When used with 60VDC directly from the panels, it's about 0,45kW. No need for control system, since that is too weak to bring the water to boil. It's function is just to decrease the consumption of heating oil. Oil burner is set to start at eavening just before enyone needs hot water and panel output goes down. Oil burner heats the water in the tank to 80ºC. It's about 40-60ºC next morning when the sun rises, depending on the consumption.
A fun experiment I did recently was to measure the speed of sound with my oscilloscope. I wired up a speaker and a microphone at a known distance from each other, connected the oscilloscope to both sides and measured how long it took between sound trigger & reception. I came within several meters/second accuracy which I think is a nice result for a basic home lab setup.
I also track a lot of metrics around the house using Home Assistant. Temperature, humidity, power usage, light levels, heating, but also stuff like total meters of filament used, total objects printed, system metrics. I like statistics and it's fun to compare months/years and clearly see the results of improved isolation for example.
For the average household I think tracking your energy and gas consumption is most useful as it allows you to spot accidental wasteful usage and both save money and the environment :)
I experiment with everything all the time. Try new approaches to things, see what worked and didn’t, adjust and try again. Cooking, exercise, social interactions, lovemaking, if I can evaluate it I run little informal experiments on it all the time.
Best quantitative example is exercise. I track lots of cardio metrics with my gps+HR watch so I can see in real time what I am doing to my pace vs heart rate. I track my estimated 1RM for various lifts across different training programs and methodologies and have found one that produces the best results for me. My watch also tracks sleep and I’ve found that 2 drinks affects my sleep while 3 drinks wrecks my sleep.
I lifted seasonally, phasing from 3 lifts and one cardio day in the winter to 3 cardio and 1 lifting day in the summer. Each fall was a bit of a reset, jumping back in at lower weight and working my way back up.
For me 5/3/1 is where it’s at. I started with 5x5 and plateaued out pretty quick particularly on OHP but I stuck with it for 2 years. From there I tried a variant that was 3x5 and amrap sets, I forget what it was called. That was only marginally better, tried it for two years.
From there I found 5/3/1. I was able to improve my 1RM in each lift beyond what I ever hit and the best part is I still improved year over year, so it has a much more gradual plateau.
It's an ongoing experiment that devolved into taking apart the mqchine andreplacing the broiler due to a manufacturing defect. The experiment will resume this month.
I do experiments mostly on my computer/phone but once I had a small digital clock that was powered by 2 cups of cola. it had a battery that generates a tiny amount of electricity from chemical reactions, and the cola was used as an electrolyte. then I connected some wires and it worked. pretty epic.
well on computers I mostly do performance benchmarking and comparing one to each other or installing other OSes and seeing how well they perform. on my phone, I use phypox, apk editor (apk extraction and editing), debloating and heavy phone optimization.
Sure! I'm assuming you're talking about coffee. I aim to get the best coffee possible as cheap as possible, so these factors are by far not optimized but they're good enough for me:
Coffee beans: Getting coffee that you like is maybe the most important factor. The first time I tried floral coffee, I thought my cup was not properly washed and still had detergent in it. Now I know I don't like floral coffee!
Water: I hate myself for doing this because of the plastic waste I generate, but buying a massive container of water that has been purified by reverse osmosis consistently results in way better coffee than using my tap water.
James Hoffman's V60 recipe v.s. Osmotic flow: James Hoffman's V60 recipe is a thousand times better. I think the main factor here is agitation; in this case, more is better. I have not experimented much beyond Hoffman's recipe because I like it. It's possible I could optimize a bit more with little cost.
The cheapest grinder my partner used in their previous place v.s. the grinder we recently bought: I am so sorry if I sound like a snob, but getting a grinder that is capable of creating uniform grinds has been game changing. It's not even close.
The way that I think about these factors is that I'm affecting the extraction of the coffee. I'm trying to take the things that taste good in coffee and leave the things that don't taste so good. I'm playing a balancing game: not too extracted and bitter, not too underextracted and insipid.
Of course, there are other variables that I could try to optimize for, such as body, acidity, sweetness, etc.. Maybe I will someday pay attention to it, and if it's not expensive or hard to optimize for them, then I'll be happy to change my way of making coffee. In the meantime, I'm happy with what I've got.
In the off chance you meant Scrum and ACT-Advisor stuff:
In Scrum, I'd say a lot of the experiments end up affecting factors that have, in the literature, already been identified as important: happy workers are more productive, stable interfaces between teams leads to faster development and higher quality work, cross-functional teams are better than having handoffs, etc..
As to the ACT-Advisor stuff, this may seem obvious, but doing Acceptance and Commitment Therapy improves my scores. I like to see that it's not only therapy sessions that improve the scores, but also weeks of intensively doing ACT exercises on my own.