laydn

10 ms·

91.
by laydn 7y ago
You build a reactor and specify its lifetime, then push the reactor past its design lifetime, then you find way too many cracks in your reactor and you want to run it for 4 more years by asking for an increase in the $number_of_allowed_crac
92.
by laydn 7y ago
Integrated circuit design is a vast field with many different areas of expertise. Given your goal, your best bet is to buy an FPGA development board and learn an HDL (Verilog or VHDL), and start experimenting. When you to deeper in the fiel
93.
by laydn 7y ago
You should charge "per month/year", if you have any intention of supporting your product and your customers long term. Sell the library for X EUR, and then charge Y Eur/year for ongoing support and maintenance, where Y i
94.
by laydn 7y ago
We're waiting for an on-premise version of PartsBox to be released :-) Is that wishful thinking???
95.
by laydn 7y ago
The article states: "When MCAS senses that the angle of attack is too high, it commands the aircraft’s trim system to lower the nose. It also does something else: It pushes the pilot’s control columns downward " No, it does not
96.
by laydn 7y ago
I was thinking whether they can "hide" an extra AoA sensor under the hood for emergencies. Just like a landing gear can be put down or retracted, an AoA sensor can be kept inside the fuselage, and brought out only when necessary.
97.
by laydn 7y ago
Despite all we've read about this subject, are we really still implying that this is a software problem?! Very basic rules of commercial aircraft design were violated during the development of 737MAX. No point in listing all the issues
98.
by laydn 8y ago
No, I meant highest. For example: If your target rail is 12V, use a minimum of 16V rated capacitor, but prefer a 25V rated capacitor over 16V. This application note has a very detailed explanation of Aluminum capacitor reliability (page 12)
99.
by laydn 8y ago
If you want your aluminum capacitors to fail less often: - If you are designing the PCB and not repairing, keep them as far away from heat sources as possible. If you're repairing a PCB and the caps are near heat sources, consider isol
100.
by laydn 8y ago
This is a great question. I am not sure why it is not being asked more frequently.
101.
by laydn 8y ago
I agree with what you are saying in principle. However, the MCAS system apparently is designed to not kick in when the flaps are extended. In your situation, since you were descending to land, the flaps would have been extended and MCAS wou
102.
by laydn 8y ago
That is correct, but remember that the aircraft wasn't stalling, the AoA sensor was bad.
103.
by laydn 8y ago
It is difficult to understand the design decisions made on these complex software systems without any real domain knowledge, but one can't help but wonder whether this whole MCAS system is pushed into the field prematurely. For example
104.
by laydn 8y ago
This entire industry is (was?) based on "safety-first" principle. After two very similar incidents, I find it incomprehensible that airlines are still flying with this aircraft. Two catastrophic incidents within a few months for a
105.
by laydn 9y ago
Could this be the first of a series of "objects" to come our way? Part of a large ejection of some sort?
106.
by laydn 9y ago
I agree. Unfortunately, it feels like there is so many people out there lacking the fundamental engineering background to write software. I once spent an hour "optimizing" a piece of code that ran in 15 minutes, which tested an em
107.
by laydn 9y ago
That almost physically hurts to read! The performance modelling teams working for the large CPU makers get several code traces from major database vendors to optimize the execution of critical pieces of database code. They do a cycle-by-cyc
108.
by laydn 9y ago
I haven't lived in an area prone to weather-related disasters. But, I feel like, most of these are avoidable (I mean, not the disaster itself but the "riding-it-out" part). Usually, there is plenty of time and warning so you
109.
by laydn 9y ago
If plastics is the only concern, why not use glass? Make sure to store it in a place where no sunlight can shine on it.
110.
by laydn 9y ago
I don't mean to sound harsh, but, just 200+ hours? That's a little more than a month of work. I wouldn't even begin to expect any meaningful returns with just one month of full-time work.
111.
by laydn 9y ago
I've been noticing that I'm more tired and need more downtime in days where I make, (or forced to make), critical decisions. If I start the day by knowing what to do, then I don't really feel the burnout. For example, if I&#x
112.
by laydn 9y ago
Well, a semiconductor company can design a general purpose processor and sell millions or billions of units. Or, it can design a safety critical and rad-hard chip and sell you maybe a couple thousand? :-) At least, there is now the option t
113.
by laydn 9y ago
Shouldn't that read: "" More specifically, the sum of all expected future premiums that all patients pay should be slightly more than the sum of all expected future claims for all patients "" You can not reduce
114.
by laydn 9y ago
Is there a tool out there that generates grammar by analyzing source code? For example, I'd like to feed the linux kernel source code and get the C grammar as the output?
115.
by laydn 9y ago
This should quickly be declared illegal, if not already. With the amount of data that is being gathered on us, coupled with advances in machine learning and statistical analysis, in the near future, "they" will be able to figure
116.
by laydn 9y ago
Agreed. It is a very basic comparison, which should be done before posting the article. I don't understand why he keeps posting these before running the exact same test on different processors (an Intel or even a different AMD should
117.
by laydn 9y ago
A humidity sensor, coated with conformal coating, will simply not function properly. If you need conformal coating on your PCB, most sensor manufacturers will recommend you to cover the top of the sensor with some material (for example, Kap
118.
by laydn 9y ago
Your first line of defense will be conformal coating. There are various options here. Easiest to apply for DIY electronics would be in spray form (such as Electrolube HPA200H spray) However, if you have an RF component and/or RF circui
119.
by laydn 9y ago
You know, getting these electronics systems ready, sending out to deep space and communicating with these systems is an incredible feat. But, for me, another amazing thing about these long term projects is the sheer amount of knowledge that
120.
by laydn 9y ago
When I read the headline, I immediately thought that it meant I could pay for charging with Bitcoin and/or Ethereum. What else can be inferred from the headline? What would it mean to "put car charging on a blockchain"? Can y

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