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(5 replies)

Number of turns Vs rpm

No.14197240 ViewReplyOriginalReport
I'm rewinding this motor and I just stopped to think, if I change the number of turns how will it affect rpm or "kv"? (Does kv apply to DC motors like this it is not 3 phase).

The input voltage will remain the same regardless of number of turns, will less turns result in a higher 'kV' like a 3 phase brushless motor?

Originally, this had 17 turns of 0.5mm wire and 10 poles with pairs of 17 turns.

Rewiring with 0.63mm since I want to prevent it burning out again (will also find the source of physical resistance overloading the coil and sort that too).
(22 replies)
No.14195346 ViewReplyOriginalReport
I want to learn mathematics but I don't know where to start.
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No.14199408 ViewReplyOriginalReport
>the fibonnaci sequence is not proof of God’s existence
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Concerns regarding the novel nature of mRNA vaccines

No.14182954 ViewReplyLast 50OriginalReport
Regarding the mRNA COVID vaccines I get the impression as a non-expert that forcing humans cells to produce a non-human protein with non-human/"foreign" genetic code sounds highly unethical & dangerous in terms of unknown effects from doing this.

Most of the concerns that I hear about regarding these vaccines seem to be primarily focused on the spike protein that's produced from vaccination, but I don't see much discussion regarding the ethics of forcing the human body/cells to produce non-human proteins (aside from the idea that the mRNA could somehow change human DNA).

Are there any instances of human cells taking in non-human genetic code & producing non-human proteins (like the vaccine) "in nature" that somehow suggest that mRNA vaccine technology is ethical?

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(14 replies)

I lost emotions after hitting my head

No.14197785 ViewReplyOriginalReport
Is it possible?

Medics say the symptoms are not from the hit because I didn't get paralized/insensible limbs or didn't lose consciousness, but rather somatization. But I've wait a month and I'm still with most of the same symptoms, and I've never get before these symptoms although I've had stress many times.

I only can feel some some cheerfulness and anxiety, but I'm sure I wouldn't get sad if my parents die and I don't get emotional regarding anymore from reading. I also got some early awakening insomnia, difficulty to read (slow), headache after reading and befor sleeping and memory lapses. Only slow reading have disappeared after a month.
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(50 replies)

Eye 2: Return of the Eye

No.14195354 ViewReplyOriginalReport
As seen on /sci/
https://imgur.com/a/Gzp2Ile
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(20 replies)
No.14198333 ViewReplyOriginalReport
.999... + 0.000...1 = 1.
Therefore .999... =/= 1.
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No.14197698 ViewReplyOriginalReport
Is construction engineering really the easiest engineering discipline out there?
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examples of amateurs debunking established science?

No.14198356 ViewReplyOriginalReport
here's one
https://narratively.com/nick-brown-smelled-bull/
>By training a computers man, the then-fifty-year-old Brit was looking to beef up his people skills, and had enrolled in a part-time course in applied positive psychology at the University of East London. “Evidence-based stuff” is how the field of “positive human functioning” had been explained to him—scientific and rigorous.
>The theory was well credentialed. Now cited in academic journals over 350 times, it was first put forth in a 2005 paper by Barbara Fredrickson, a luminary of the positive psychology movement, and Marcial Losada, a Chilean management consultant, and published in the American Psychologist, the flagship peer-reviewed journal of the largest organization of psychologists in the U.S.
>But Brown smelled bullshit
>Brown related a list of inconsistencies he had found in the mathematical guts of the theory.
>meets sokal and friedman (a psychologist)
>July 2, 2012, Alan Sokal submitted the finished paper for peer review, then titled “The Complex Dynamics of an Intellectual Imposture,” to the American Psychologist.
>women authors of bogus paper go full copium
>psychology continues to be a bullshit field
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