zack's lab

3.4K posts

zack's lab banner
zack's lab

zack's lab

@zackslab

electronics engineer. ex-tesla (optimus). former marine corps scout sniper. https://t.co/Jp281sNdo0

Katılım Mayıs 2023
224 Takip Edilen3.9K Takipçiler
Sabitlenmiş Tweet
zack's lab
zack's lab@zackslab·
show me your home lab! “What’s your choice for a single best aid to an interesting and productive circuit design career? A PhD? An IQ of 250? A CAD workstation? Getting a paper into the Solid State Circuit Conference? Befriending the boss? I suppose all of these are of some value, but none even comes close to something else. In fact, their combined benefit isn’t even worth a fraction of something else. This something else even has potential economic rewards. What is this wondrous thing that outshines all the other candidates? It is, simply, a laboratory in your home. The enormous productivity advantage provided by a home lab is unmatched by anything I am familiar with. As for economic benefits, no stock tip, no real estate deal, no raise, no nothing can match the long-term investment yield a home lab can produce. The laboratory is, after all, an investment in yourself. It is an almost unfair advantage. The magic of a home lab is that it effectively creates time. Over the last 20 years I estimate that about 90% of my work output has occurred in a home lab. The ability to grab a few hours here and there combined with occasional marathon 5-20 hours sessions produces a huge accumulated time benefit. Perhaps more importantly, the time generated is highly leveraged. An hour in the lab at home is worth a day at work. A lot of work time is spent on unplanned and parasitic activities. Phone calls, interruptions, meetings, and just plain gossiping eat up obscene amounts of time. While these events may ultimately contribute towards good circuits, they do so in a very oblique way. Worse yet, they rob psychological momentum, breaking up design time into chunks instead of allowing continuous periods of concentration. When I’m at work I do my job. When I’m at home in the lab is where the boss and stockholders get what they paid for. It sounds absurd, but I have sat in meetings praying for 6 o’clock to come so I can go home and get to work. The uninterrupted time in a home lab permits persistence, one of the most powerful tools a designer has. I favor long, uninterrupted lab sessions of at least 5 to 10 hours, but family time won’t always allow for this. However, I can almost always get in two to four hours per day. Few things can match the convenience and efficiency of getting an idea while washing the dishes or putting my son to sleep and being able to breadboard it now. The easy and instant availability of lab time makes even small amounts of time practical. Because no one else uses your lab, everything is undisturbed and just as you left it after the last session. Nothing is missing or broken, and all test equipment is familiar. You can get right to work.” - Jim Williams “The Art and Science of Analog Circuit Design”
zack's lab tweet media
English
11
15
221
25.8K
zack's lab
zack's lab@zackslab·
@memristor @signulll although i don't think anyone works out their face. so i dunno, just shooting from the hip here
English
0
0
0
13
zack's lab
zack's lab@zackslab·
yeah i just started looking into it more. maybe the confusion comes from the discrepancy that people who lose weight naturally are doing both exercise (keeping muscle mass up) and caloric restriction, where as the pill people just continue their sedentary lifestyle and pop pills.
English
1
0
0
21
signüll
signüll@signulll·
why does ozempic caused the “ozempic face”? what’s the distinctive science behind why you can almost always tell if someone lost weight due to ozempic vs naturally?
English
66
0
102
39.2K
zack's lab
zack's lab@zackslab·
supposedly it dates back to ancient egypt/babylon times. pine resin was being used on like everything for various reasons (water proofing, preserving, burning). i think maybe they just observed it on metals, especially once we began trying to join metals together with heat (not sure what time period that was)
English
0
0
0
5
zack's lab
zack's lab@zackslab·
fun fact: soldering flux is just pine resin. the tree i cut down yesterday could supply me with a lifetime of flux. i'd have to distill it into rosin of course.
zack's lab tweet media
English
36
10
339
17.9K
zack's lab
zack's lab@zackslab·
@cunha_tristan i don't fully understand all the chemistry, but i think that is the gist of it, yes
English
1
0
1
9
Tristan Cunha
Tristan Cunha@cunha_tristan·
@zackslab So it's like a stable acid at room temp and turns in to an "active" acid at high heat where it reacts with oxidized stuff to clean the metal.
English
1
0
1
10
ordinary average guy
ordinary average guy@hri8477gj·
I have 4 kids and the Model Y works just fine. In fact we regularly road trip down to your neck of the woods with all our camping gear to camp in the mountains. We fit our family of six, plus all our camping and cooking gear, with the help of a hitch mounted storage rack. Also have roof racks for our car top carrier, but honestly we never need to use that.
English
2
0
0
333
Dave Jones
Dave Jones@eevblog·
Oh come on, only 3 Likes for the PCB joke of the year? This is some of my finest work.
Dave Jones tweet media
English
6
0
48
1.8K
zack's lab
zack's lab@zackslab·
@Valient77 yes! apparently we’ve been using this since like ancient egypt. the aliens introduced us to flux.
English
0
0
0
33
Valient
Valient@Valient77·
@zackslab You mean the stuff that cleans metal?
English
1
0
1
46
zack's lab
zack's lab@zackslab·
rosin flux is definitely still used a lot in industry, but there are also synthetic organic versions that have activators for more aggressive oxide removal. there are many use cases where tree derived rosin is still preferred, but you will almost always specify cleaning in your assy notes.
English
1
0
0
17
WilliamTheBrand
WilliamTheBrand@iamwilliambrand·
@zackslab That is what my instructor of electronics informed us in college, and they would be the Air Force, Military Contractors, and NASA. I have both, rosin and nonrosin. There is a visble difference. Rosin is harder to clean and has a shorter shelf life.
English
1
0
1
25
Yoju
Yoju@yojutsushi·
@zackslab a girl at college burned down her dorm this way
English
1
0
1
63
zack's lab
zack's lab@zackslab·
@i2cjak every day is a good day to boot altium.
English
0
0
3
365
Hillsy
Hillsy@SimonHillzzz·
@zackslab This can't be true, I've never seen a YouTube clip on survival soldering.
English
1
0
1
63
zack's lab
zack's lab@zackslab·
@cunha_tristan yes it is a weak organic acid and when heated it becomes thermally activated “enough” to donate a protons to the oxygen in the oxide layer, and h2o is the result.
English
1
0
5
186
Tristan Cunha
Tristan Cunha@cunha_tristan·
@zackslab How did we discover sap is good for soldering? And how does it work, is it an oxidizer?
English
2
0
3
210
Will
Will@willreil·
@i2cjak I have 0 game sense but if we play on a 1v1 map my reaction times will crush you into sand, turn that into a silicon wafer, etch it, install it in my computer with no fan and cook your ass again, sorry pal
English
1
0
1
76
i2cjak
i2cjak@i2cjak·
I need CS:GO style scripting for keybinds in KiCad. I want to be able to swap layer pair with my mouse. I should be able to scroll wheel and bunny hop around the PCB
English
6
0
24
1.4K
i2cjak
i2cjak@i2cjak·
OpenEMS is so difficult to use. I wish Ansys wasn’t 100k. Fuck me brah
English
13
0
41
2.3K
@melissa
@melissa@melissa·
the child is riding his bike. he flies down a hill and falls. he gets back up and grins. i say, you might try going slower. he says, i'm practicing going fast
English
5
3
177
3.7K