This is something every woman would find useful to know and very important if you don't have electricity and are stuck somewhere with a discharged phone.
This is like something taken out of the MacGayver series where he uses things around him to get him out of jams.
Sometimes it pays to know a bit of science. I often wondered if what he did on TV was true.
In any event if your child is in cub scouts or girl scouts,knowing stuff like this is cool.
And if you ever think of receiving a love letter from a scientist, here is an example to expect:
Love Letter from a Mathematician
My Dear Love,
Yesterday, I was passing by your rectangular house in trigonometric
lane. There I saw you with our cute circular face,conical nose and
spherical eyes,standing in your triangular garden.
Before seeing you my heart was a null set, but when a vector of magnitude
(likeness) from your eyes at a deviation of theta radians made a tangent to
my heart, it differentiated.
My love for you is a quadratic equation with real roots, which only you can
solve by making good binary relation with me. The cosine of my love for you
extends to infinity. I promise that I should not resolve you into partial
functions but if I do so, you can integrate me by applying the limits from
zero to infinity.
You are as essential to me as an element to a set. The geometry of my life
revolves around your acute personality.
My love, if you do not meet me at parabola restaurant on date 10 at
sunset,when the sun is making an angle of 160 degrees, my heart would be
like a solved polynomial of degree 10.
With love from your higher order derivatives of maxima and minima, of an
Have a great day.:)