I've always wondered, how people like Mark Zuckerberg, Larry Page, Elon Musk and more... come up with those genius business ideas? The most fundamental, simple and essential business ideas that they came up with are so hard to spot.
Were they lucky to get exposed to the right stimulus that will lead them to those simple but genius ideas?
I'm sitting here trying to come up with an idea, but I think it's better if I just expose myself to diverse stimulus.
Hi all, I have a complex vector field on R^3 with divergence free real part and curl free imaginary part. I wonder if there is a special term for that and if this might ring a bell with anyone here?
no, what I mean is that young students often get very frustrated by the contrast between the arguments that they're able to produce and the (much simpler) arguments produced by professors and textbooks
"if it's so simple it must be easy, and I must be stupid because I cannot write think like that"
which is, as it turns out, bunk
the fact that those arguments are simple is precisely the reason why they're hard to produce
"simple" and "easy" are at best independent descriptors, but for anything meaningful, it's much more likely that being simple makes it harder, not easier
though, that said
@NovaliumCompany if you think those guys' business ideas are simple, you really don't understand what makes them work
for one
for another, it's extremely hard to understate the role of selection bias in getting you to care about those guys instead of the million other people who had "simple" ideas but who weren't as lucky in their path forward with said ideas
@skillpatrol to the extent that that implies that the associated frustration and humiliation are somehow intrinsic to the process of understanding any given subject, I disagree
Where do I ask non-mainstream physics questions? For instance, a question that links the human mind, physics, neuroscience & perhaps mathematics like-
According to physics, do our visual thoughts (possibly others) appear to be not real because they occupy physically inaccessible higher dimension...
If gravity is a fictitious force, whats its real force counterpart?
Why this question is on hold? I tried to ask the same question in 3 ways!(not including the title) And some people have put it on hold. I don't understand why its difficult for them to understand what I am asking. I don't think...
Hmm.. the Necromancer badge, you earn just for answering a 60 day (with five or more points) old question, or you have to answer a 60 day old question with your answer been received five points?
> Ohanian's book in general gets everything wrong. Here is a complete list of Einstein's mistakes (I put an expanded version of this on Wikipedia years ago, but it slowly got reworded, watered down, and moved. That gradual process, of course, was the work of Satan)
(from that list)
boy, this site has had some idiosyncratic writers posting here over the years, that's for sure
though I reckon even relative old-timers like @rob didn't see these things go down in person =P ;-)
@EmilioPisanty I like when you give infodumps from SEDE queries in the chat. It's usually pretty interesting, and I never think to dig through these things myself.
I've made one or two for myself, but yeah I know nothing really about SQL. I could probably figure it out, but I'm not well versed in much coding in general.
yeah, my threshold is usually about 5 minutes. For me, it's basically googling if I can find a similar query that is easy to make work for myself. If it's nothing overly specific, that often does the trick. If not, giving up usually works out okay :P
@EmilioPisanty I have a question. I'm not entirely sure what area you are knowledgeable in quite yet. So I'm hoping you'll be able to help me with this. Just one second.
@EmilioPisanty I heated a neodymium magnet past it's curie temperature. To ensure no magnetic field was maintained in the magnet. Many magnet websites claim that heating neodymium magnets past the curie temperature would permanently damage the magnet. Or at least this type of magnet.
@EmilioPisanty I tested the magnet for residual magnetic flux. And as expected there was only outside magnetic flux from the earth. So I then let it cool down in room tenperature until it was entirely cooled down. It cooled down surprisingly slow.
@EmilioPisanty I then heated it up way past it's curie point and till I could get it glowing red. But keeping it from melting. That transition point on these types it magnets happens very very fast. Then as it was red hot I set it on an electromagnet powered by AC. (Transformer from a microwave)
@EmilioPisanty I turned it on for 1 second intervals 3 times with a 1 second pause between each interval. Once I turned it on 3 times I then turned the power off. Then I took water with ice in it that had cooled down to 33 degrees Fahrenheit. And dumped it on the magnet to cool it down rapidly.
@EmilioPisanty Ok last part. I then measured the magnetic flux on the edges of the magnet where the magnetic flux is the highest. It read 8,650 gauss. It actually was more than when the magnet wasnt demagnetized. When the magnet was magnetized before from the factory it read 5,600. (This nunber is rounded up, was very close)
@EmilioPisanty Here's my question: How did the magnet gain this much magnetic flux? Or did the manufacturer not saturate the magnet all of the way?
