He invented a device to measure alcohol concentration from toilet paper core

The device for testing alcohol and stimulants of 13-year-old Indian boy has a structure consisting of: digital camera, flash with good illumination and toilet paper core.

Inventing a device for checking alcohol concentration from toilet paper core

According to Business Insider, Krisha Reddy (13 years old, from Wichita Falls, Texas, USA) invented a device capable of detecting people using alcohol or stimulants through the pupil's reflection on light. bright . This device has 3 parts: digital camera, flash with good lighting and toilet paper core.

After turning on the flash, users use the toilet paper core to direct light into the pupil, then use a digital camera to return the pupil's elasticity. A software program written by Reddy will test this elasticity.

Portrait of talented boy - Krisha Reddy.

A person is tested for alcohol or opioid group pain medication, his pupils will shrink. If the person uses LSD (a powerful hallucinogenic drug), hallucinations or cocaine, the pupil will expand.

In addition to the function of checking alcohol concentration like common devices, the 13-year-old boy's invention can also detect stimulants, sleeping pills, and analgesics in the user's body.

Thanks to this innovative invention, Krisha Reddy has become one of 10 finalists in the Young Scientist Challenges contest organized by Discovery Education and 3M channels.