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2.0

Major VersionM

by J Mary Leiza

Introduction

If you use sketch pens of different colours, and start colouring them on a filter paper, one by one, on top of each other, you will soon notice the blob turns black.

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Video Overview

  1. Take any 3 light-coloured sketch pens; we have used pink, yellow and blue. Take a filter paper. Draw a circle and fill it with any of the colours, pink in our case.
    • Take any 3 light-coloured sketch pens; we have used pink, yellow and blue.

    • Take a filter paper.

    • Draw a circle and fill it with any of the colours, pink in our case.

  2. Make another circle with a different  colour  (blue, in our case) overlapping the pink circle. Fill the circle with blue colour. Make a third circle with the third colour (yellow here) overlapping the previous coloured circles.
    • Make another circle with a different colour (blue, in our case) overlapping the pink circle.

    • Fill the circle with blue colour.

    • Make a third circle with the third colour (yellow here) overlapping the previous coloured circles.

  3. Fill the third circle with yellow colour. You should notice that the colours when drawn on top of each other, create a darker spot. After a few more layers of colour are added on, you'll get pretty close to black, as shown.
    • Fill the third circle with yellow colour.

    • You should notice that the colours when drawn on top of each other, create a darker spot. After a few more layers of colour are added on, you'll get pretty close to black, as shown.

    • Filter paper can tear easily, so do not colour it with too much pressure, especially at the intersection of colours.

    • Using darker hues/colours may create a black spot with just 2 colours, so use lighter colours for a better effect.

  4. Variation 1 :  Black ink chromatography. Variation 2 : Colour wheel. Variation 3 : RGB LEDs.
Finish Line

Procheta Mallik

Member since: 05/02/2017

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