
Indonesian: 
 
 
 
 
 
 
 
 
 
 
 
 
 

English: 
Hi Flat Earthers
This is Zack
In the last two videos about Refraction we
talked about how the sun, and the moon, and
the stars rise and set on the Flat Earth by
just adding the atmosphere to the model.
A lotta people thought that it was great.
but some people said that we contradict science
and therefore our model is incorrect, and
I didn't like that.
Of course when people know that you don't
belong to the scientific community they Automatically
think that you're stupid.
So I decided to make a small experiment and
show the world that we are NOT stupid, and
we don't contradict science, it's just them
who don't understand science.
Please, if you didn't watch those two videos
go back and watch them now, so you can follow
me here.
They said that if the sunlight bends because
of the atmosphere, then the atmosphere will

English: 
make the apparent sun look higher than the
real sun and not lower as we did. and therefore
the sun will never set.
I tried to explain to them that it wasn't
us who made the sun appear lower or go down
behind the horizon, and that it was a program
called Cinema4D.
But they kept on saying the same thing over
and over again.
So in this experiment we will know if the
apparent sun should look lower or higher.
So let's do some science.
On This table I have water that represents
the atmosphere...and Light that represents
the sun.
Three points where I am gonna place the object.
And here is the object.
The distance between each point is 20CM.
There is nothing important about these numbers
for now.
I am doing it like this just to study the
angles of refraction over distance, but right

Indonesian: 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

English: 
now you don't need to care about them but
I am gonna show them to you anyway.
The object is 10cm long, the bottom of it
is 3cm in diameter and the top is 2.5 cm.
The distance between the light and the table
is 39 cm.
I drew this in AutoCAD yesterday (before the
experiment)...
And I drew my expectations of the real and
refracted shadow based on some calculations
that I have been working on for the last month.
And now we're gonna find out if they are correct.
But let me show you what I expected to see.
So as you can see, I drew the same thing that
you saw on the table, and I expected the shadow
of the object to act like this with and without
refraction.

Indonesian: 
 
 
 
 
 
 
 
 
 
 

Indonesian: 
 
 
 
 
 
 
 
 
 

English: 
First, I am gonna explain this to you and
then I will show you the result of the experiment.
What I did was draw a lamp, and two objects,
and I also drew their shadow in relation to
the source of the light.
And on the same shadow of each object, I added
another shadow that should be caused by refraction.
According to these people who think we are
lying, the shadow, after we add the water,
would be shorter instead of longer.
But my head told me that the shadow would
look longer, and that means that refraction
makes the source of the light appear lower
and not higher, So the first shadow of object
A, before refraction was 8 cm, so I calculated
that if we added the water, the shadow would

English: 
be 9 cm and not 7 like these people think.
and I did the same think with object B, and
the first shadow of object B was 14 cm, so
after refraction you might think it would
be 15 cm, or 13cm if you still think like
these people.
but I think it should be longer than 15cm
because the distance is longer, so the shadow,
after we add the water of course, would be
even longer, because water will lower the
apparent light, so the shadow that the apparent
light is going to cause will be longer than
that.
So I expected it to be 19cm.
So let's do the experiment to make sure if
I am saying ... the truth.
So I am gonna put the object in position A,
and put the water under the light, and mark
the tip of the shadow with my finger so you
can see the difference.

Indonesian: 
 
 
 
 
 
 
 
 
 
 
 
 

English: 
Now I am gonna remove the water so the shadow
can go back to its place.
As you can see the shadow without refraction
is shorter.
Refraction makes the shadow longer and that
means that the water makes the apparent light
lower instead of higher.
Is it because of the glass?
I don't think so.
Right now I don't have the equipment to do
it with water only.
If you have it, then do it.
In either case, we win.
Because many people say that there is a dome...so?
Let's move the object to position B and do
the same thing.
I don't know if you can see it from there,
but there is a bigger difference here.
I measured all the shadows after filming the
experiment.
and I got the same results as I had in AutoCAD.

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Indonesian: 
 
 
 
 
 
 
 
 
 
 
 
 

English: 
Now the question is, did the glass make the
shadow look longer? or did the water and the
glass make it longer?
As I said before, I don't know.
I don't have the equipment to know.
But I emptied the plate from water and dried
it to see if the glass without water would
make the shadow look shorter instead of longer,
but the shadow is still getting longer, but
the difference is very very small.
then I tried it with a flat glass only and
it did the same thing.
Look at the shadow it's getting longer, and
again a longer shadow means that the apparent
light is lower.
Then I added the two glasses together and
they did the same thing, the shadow is still
getting longer.

Indonesian: 
 
 
 
 
 
 
 
 
 
 

English: 
Then I added water and covered it with that
flat glass and the shadow is still longer
than the real one.
The laser tests that people do with glasses
to see refraction are correct but this is
not a laser pointer that is pointing towards
a particular object, this is a bulb, and the
sun is doing something similar.
So maybe this is why people are confusing
the two things.
I tried it with a laser and the shadow did
become shorter, It was hard for me to film,
but I think you already know that.
I pointed the lamp to the object and the shadow
did get shorter...
But it doesn't work the same when you use
a round bulb.

Indonesian: 
 
 

English: 
Please don't believe me, do it yourself and
make your own conclusions.
Thanks for watching
