Kind: captions
Language: en
so tonight I'm hanging out with my
friend Nigel and he's brought along one
of his science toys a little white
plastic ball um it's not actually a
white plastic ball at all you told me
you were bringing the white plastic ball
tonight it's uh what color would you
call that I would call it uh purple it's
a purple Ball purple really you say
purple that I you know I don't I'm not
good with colors I don't know if you
want me to say fuchsia but it's you know
it's purple well it's interesting you
say that um there is lighting there but
it is actually a red blue and green
light
but it looks purple no there's
definitely a red blue and green light in
there uh all right well how are we going
to settle this debate I can show you
that it is red blue and green how are
you going to do that um by twirling it
in a circle simple you're going to twirl
that in a circle and all of a sudden I'm
going to see that it's red blue and
green I promise you nothing less okay
it's a pretty good promise Let's uh
let's see it all
right
wow okay so uh I'm not too big of a
person person to admit when I'm wrong
and I see a red green and blue uh balls
around the the outside of the circle but
when you slow it down it it goes back to
being purple yeah it's um actually
everyone will see it being purple
because the red blue and green lights
are turning on and off so quickly after
each other that your brain actually
merges it into one color when the ball
is in one place so the eye actually kind
of holds the information there about
what color it's seeing for an instant
longer than it's there and it merges
together to produce that purple color
yeah that red blue and green kind of
merge to this Dusty violet color Dusty
Violet Dusty Violet you know your color
should be a pain on why can we see them
separated when you swirl it in a circle
when I Swirl It In A Circle I'm actually
getting the ball to switch colors to Red
to green to blue at different points in
space so at different points in space
your eye is not actually holding that
image as it switches to a different
color right so even if the eye remembers
the color that it's seen it's not going
to merge with the next color because
that occurs at a different point in
space exactly so it's much easier to see
the red blue and green lights happening
in the bow than it
is when it's still so can you think of
uh some practical applications for this
I cannot but um but it's it's a lot of
fun for a Saturday night out right it is
a lot of fun for a Saturday night out in
a um in a dark alley yeah so try that at
your next party next party trick yeah
it's a good potty trick all right well
let's go a lot of potties as you see
let's go crash some parties we are going
to be a big hit with this
thing High
FS I'm not surprised that no one wanted
to be interviewed by us oh I am this is
awesome this is awesome this is awesome
I
guess