Testing the Waters

Over Reading Week, Preyansh tried putting a piece of sharpie-coloured tape over the flash of his phone to see what the results would be. The goal of this was to a) see if the background research we did yielded the proper result and b) assess what else was needed for building the actual prototype.

Step 1: Materials

Materials used: a cell phone, clear tape, scissors, and sharpie markers.

Step 2: First Layer of Tape

Cutting out a small piece of clear tape, Preyansh taped it over the flash of his phone and precisely coloured it with a blue sharpie marker.

 

Step 3: Second & Third Layers of Tape

Following Step One, Preyansh put another piece of tape over the flash and coloured it with the blue sharpie. Then, he put one more piece of tape over the flash, but coloured this one purple.

Step 4: Final Result

Here is the final result:

Analysis

While the experiment worked in creating a blacklight, Preyansh notes that you need a specific pen that has invisible ink in order to create messages that you can put the blacklight on. Although we’re not making an invisible ink pen, we note that we’ll need some sort of similar item to test whether or not the black light actually works or not. We’re going to see if bleach can work as an alternative ink so we can know if the black light properly works.