2024 - ILLUMINATING HOPE

Introduce question
Earthquake is a terrible and unpredictable disaster for the whole world. At 23:59 on December 18, 2023, a 6.2 magnitude earthquake struck Jishishan County in Gansu Province, killing 151 people and injuring 983 others. So far, there is still no reliable way to predict earthquakes, and all we can do is try to rescue every survivor after the earthquake.
But rescue teams are often unable to quickly find trapped survivors because of the chaos of debris caused by the earthquake. The dust thrown up by the collapse has further reduced visibility, complicating the search for rescue teams. The earthquake not only caused physical damage to people, but also destroyed the spirits of survivors trapped in the rubble. The lack of light exacerbates feelings of fear and hopelessness. How can we solve these all problems?

idea
Due to the unpredictability of earthquakes, we propose a universal passive trigger mechanism to aid rescue operations and survivors. We try to add a special aggregate to the concrete, which consists of a rigid protective shell and a fluorescent dye inside the shell.
When an earthquake occurs, the concrete structure cracks and transmits stress internally, causing the rigid shell of this particular aggregate to crack under stress and release the internal fluorescent dye. The fluorescent dye can react with sufficient concentration of carbon dioxide and emit light.
Therefore, when there are survivors trapped in the ruins, the fluorescent dye will react and glow, in order to relieve the survivors of tension, anxiety and other bad emotions. At the same time, the light emitted will also guide the rescue team to find the location of the survivors, increasing the probability of survivors being rescued. The program hopes to improve the efficiency of earthquake relief while also soothing the psychological trauma of survivors through light.