Implementing a mental dit/dah decoder + lookup table is the shortest path to being able to decode written CW ` _ . ___ _ ` but it will cause you problems trying to receive faster CW since you can't count, assemble, lookup fast enough to receive at more than 5-8WPM. And even then you are generally doing "keyboard copy" where you write down the letters as you hear them and then go back to actually read the message you received later.
If your goal is to be "conversational" in CW I suggest you crank up the character speed until you are not able to count individual dits/dahs anymore. This will probably be somewhere in the 25-35WPM range. The goal is "instant character recognition" where you hear the sound/shape of the entire character rather than counting elements, assembling them in your head, and doing a mental hash lookup on the result.
If you have trouble receiving or copying down the 5letter groups at this speed resist the temptation to add "farnsworth" spacing (extra gaps between letters). Instead increase the word spacing until you have enough down time in between to get everything copied.
My understanding of the system is that the plug is physically locked in the charge socket while the car is drawing current through the cable. Thus it is impossible for there to be arcing at disconnect.
> Assault charges but not physical violence? What in the world?
"The legal definition of assault is an intentional act that gives another person reasonable fear that they'll be physically harmed or offensively touched. No physical contact or injury has to actually occur, but the accused person must have intentionally acted in a way to cause that fear."
More recent minivans will still fit sheet goods in the back, but they have started rounding off the lift gate (and consequently the opening it fits into) for stylistic reasons and while the maximum width is still >48" along the bottom edge you only have 42" or something before the trim starts angling up.
Such "Oral History" articles were quite popular for a time* and the fist time I encountered this article it still had its original title. I'm sad that it was not retained since the url now gives away the punchline.
PHEVs are certainly more complex, but a series hybrid like the BMW i3 only involves finding space for a small genset and some additional control software/electronics. I'm having trouble finding good numbers but this[0] article says the option added only ~$4k to the price.
I'd love to find a good number on the daily mileage of the median passenger car in the US. The average looks to be around 30-35mi/day but the median is probably a small fraction of that. Why would you want your battery pack to be 10x oversized for your typical day?
I think a more efficient solution would be series-hybrids with small onboard generators for range extension. Minimize weight/cost of the battery pack while maintaining the ability to drive cross-country without frequent charging stops.
Most derailments are in train yards. Few cause injuries, fewer cause deaths, and only a handful involve hazardous substances. I don't say that to downplay the mess in OH/PA, but just to make sure the base-rate is understood.
And if you want to compare to europe it looks like US freight rail volume is at least 6x as large. Also no idea if/how they count "fender bender" derailments in switching yards. US standard is >$12k in damage according to TFA.
It isn't really clear in the video, but that is a 4 layer board and there is another ground plane layer elsewhere. The heater loop doesn't connect to any components.
"Stationary Low-Power Reactor Number One, also known as SL-1 or the Argonne Low Power Reactor (ALPR), was a United States Army experimental nuclear reactor in the western United States at the National Reactor Testing Station (NRTS), later the Idaho National Laboratory, west of Idaho Falls, Idaho. It experienced a steam explosion on the night of January 3, 1961, killing all three of its young military operators, and pinning one of them to the ceiling of the facility with a reactor vessel plug. The event is the only reactor accident in U.S. history that resulted in immediate fatalities.
+1 for HamStudy.org which is an excellent resource. They include "explainer" cards for each question which often contain links to other material which are a great jumping off point for going as deep as you care to go on any individual topic.
I used the hamstudy website almost exclusively for getting my license and was able to pass all three tests (General, Tech, Amateur Extra) in one sitting. I had to set for a physical test at a local club's monthly meeting, but now organizations like GLAARG are proctoring remote tests via zoomso you can gest more or less 'on demand' from home.
> [follow] a convention of including unit names in identifier names.
appending units to identifiers helps, but it relies on a developer's eyeballs to spot any errors. It would be infinitely preferable if the type system would simply enforce this for you and developers not have to expend cycles reasoning about this stuff themselves.
Implementing a mental dit/dah decoder + lookup table is the shortest path to being able to decode written CW ` _ . ___ _ ` but it will cause you problems trying to receive faster CW since you can't count, assemble, lookup fast enough to receive at more than 5-8WPM. And even then you are generally doing "keyboard copy" where you write down the letters as you hear them and then go back to actually read the message you received later.