Earlier quoted context omitted.
Nit: the idiom is "large swath"
Swathe not swath
I'm not sure:
https://www.cjr.org/language_corner/swath-swathe.php
Nuclear-Powered Cardiac Pacemakers
261–270 of 277 posts
Re: Nuclear-Powered Cardiac Pacemakers
#262Re: Nuclear-Powered Cardiac Pacemakers
#263Re: Nuclear-Powered Cardiac Pacemakers
#264Re: Nuclear-Powered Cardiac Pacemakers
#265Earlier quoted context omitted.
I know. You can't just ignore the bulk of the input and still call it 'efficiency' though. Even manufacturers call this 'coefficient of performance', not efficiency.
Since precise use of language is so important to you: > "You can't [...]" He did, so obviously he can. You mean shouldn't , not can't.
Sure, a slightly irritating turn of phrase, not accurate. I didn't think it would be so controversial to hold terms of art/words with actual scientific meaning to a higher standard though.
If we're willing to be so blasé with 'efficiency' then why not, say, 'functional programming'? If it works it's functional right?
Re: Nuclear-Powered Cardiac Pacemakers
#266Re: Nuclear-Powered Cardiac Pacemakers
#267Re: Nuclear-Powered Cardiac Pacemakers
#268Earlier quoted context omitted.
I feel like an x-ray machine might be a reasonable investment. It's not gonna hurt the body.
An X-ray machine has capital and operating expenses, requires significant safety measures, licensing/inspection (at least in the US), and a trained technician. That all is significantly more expensive than saying "you hand us a form telling us whether there's a pacemaker or not, and if you fuck it up you get in trouble."
Is that true even of industrial X-ray machines, or are those mostly specific to medical X-rays, where there's a living subject?
Fair point on suing people probably being cheaper, though. -.-
Re: Nuclear-Powered Cardiac Pacemakers
#269Earlier quoted context omitted.
It would take about 50,000 hours (5.7 years) to charge a 10 Wh iPhone. A solar cell on the back of the iphone would take roughly a full sunny day to charge an iPhone, with ~2 watts peak output.
I wonder why solar phones don't exist? Even weak indoor light would eventually charge it. Maybe it would make people put phones in the sun all the time and wear out batteries with heat.
> Even weak indoor light would eventually charge it.
No, it wouldn't. Sunlight is ~1 kW per m^2. A medium-sized room has maybe a couple 60 watt bulbs, spread over 10+ m^2, each of which radiates ~10 watts of actual light.
Light indoors is pretty easily 1000x less than outdoors. Eyes work exceptionally well in low light conditions, so we don't even realize the enormous difference in brightness.
Re: Nuclear-Powered Cardiac Pacemakers
#270Earlier quoted context omitted.
You really should not. 60 beats per minute means that in ten years the leads of a pacemaker will be bent *315 million* times. That's an order of magnitude higher than we typically test fatigue resistance, and even if we were that confident about being able to produce flawless materials, there are millions of different enzymes and acids and temperature fluctuations in the body. Any one of those could impact the fatigu…
> EDIT: oh, and heart disease is the #1 cause of death in the US, while heart surgery is one of the most difficult specialties to get in to. They are absolutely never short on patients, lol. This is still relevant to his concern, but from the other end. They might be making the labor artificially scarce to increase pay.
700k people per year in the US die from heart disease. There are ~18k surgeons (of all kinds) in the US. So even if 10% of them were cardiac surgeons, each surgeon has one person dying per day to worry about. They're busy.
Heart surgeries often happen on actively beating hearts. Tiny mistakes mean death. Infections mean death. Its a muscle which never gets rest, the majority of people in the US have clogged arteries and high blood pressure by the time they die.
Theres no artificial shortage. Heart surgery is really hard. Its the third hardest kind of surgery, right behind brains and rockets.