Year: 2023

SLJ: Penrose Triangle

I have done this before but by hand instead of using Google Drawings. Penrose Triangle is also know as Impossible Triangle.

From Wikimedia GIF created by Tomruen

As you can see, when it stops to be a triangle, it seems to be impossible. The truth is there is a jump between the purple and red cubes in the 3rd L(brown).

From the angle you are looking at, it seem for it to be connected to each other. That makes it seem impossible because you cant see the jump between the purple and red cubes in the 3rd L(brown).

SLJ: Pursuit Square

I have done this before but by hand instead of using Google Drawings. Pursuit Square is also know as Pursuit Curve. I started off with a square then I duplicated and and moved the square 10% of the distance towards their nearest anticlockwise neighbour at each step, then the first dots I draw will be 16mm from each of the corners.

Have you drawn a Pursuit Square by hand or online before?

SLJ: Refraction

I chose to do this activity because I like science

  1. Yes, the bottom arrow would look different without water from with water.
  2. The arrow have to be about half of the with of the jar.
  3. My prescription glasses.
  4. Because the idea of a window is to look outside and make it look real.
  5. No because it is not an actual magnifying glass.