Fizziq//"It's yellow, it's ugly, but it can save your life"//Study the capacity of several diffusing objects to diffuse light//Enzo, dressed in a simple coat, and Fred wearing a reflective vest, come home from college at night on their bikes. Enzo thinks there is no point in wearing a yellow waistcoat because that waistcoat in the dark is no more illuminating than his beautiful coat. What do you think of Enzo's remark?//Imagine an explanation that Fred could give to Enzo to explain he is wrong//Which Fizziq Instrument could help you test your hypothesis?//Use a flashlight and your smartphone to test the amount of light reflected by a retro-reflective vest, a light coat and a dark coat in the dark//If you measure the Luminance, do not forget to calibrate the sensor by measuring the light of the retroreflective vest and pressing the CALIB button//Note your results in the form of a table and analyze then comment on all your measurements//Write in the experience notebook an explanation that Fred could give to Enzo so that he becomes aware of the usefulness of wearing a yellow vest. Be sure to include measurements and a photo of the setup