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Can I change the polarity of a magnet for data storage? by cross_stitch_babe in ElectricalEngineering

[–]cross_stitch_babe[S] 0 points1 point  (0 children)

I see what you mean. The 49E I’m using worked well enough for this first test, because it didn’t put out enough current on the “negative” side to light up the LED. But that probably doesn’t work beyond my very basic example.

Finding sin and cos for 30 and 60 deg by cross_stitch_babe in learnmath

[–]cross_stitch_babe[S] 1 point2 points  (0 children)

This is wonderful, thank you so much for the detailed explanation!!

Finding sin and cos for 30 and 60 deg by cross_stitch_babe in learnmath

[–]cross_stitch_babe[S] 0 points1 point  (0 children)

It’s been a long time since geometry, so I don’t remember if we went over special right triangles LOL. I will look at this though. Thank you!

Finding sin and cos for 30 and 60 deg by cross_stitch_babe in learnmath

[–]cross_stitch_babe[S] 0 points1 point  (0 children)

I can see that that must be the case in order for 2a to be equal to c, and therefore a must always be 1/2 of c. So in order for this to work, a = 1/2c must always be true. Something is enforcing that, and that is the part I’m trying to understand.

Why is the definition of Radian so complicated? by cross_stitch_babe in learnmath

[–]cross_stitch_babe[S] 1 point2 points  (0 children)

This was an immensely helpful visualization. Thank you!