An 18-year-old girl, Maddison King invented a Buoy, it can alert swimmers to potentially dangerous currents known as rip currents. A 12th standard Maddison King knows the risks posed by these rip currents, as she is also a lifeguard. Rip current form after wave breaks on shore and the water rushing back to sea. Most of the swimmers can’t fight their way back to shore when the flow exceeds 70 centimeters per second. Maddison King noted that rather than directly back toward the beach, it’s possible to escape rip currents by swimming along the shore. But people are not aware of this. Maddison decided to invent a probe that could help to warn swimmers when rip currents are present.
The clever girl invented four different model of buoys, out of which first model didn’t work properly. The other model involves multiple improvements to boost the performance. The working prototype is made up of plastic, in term of the size, it is bigger than a basketball. The model filled with foam. At the Intel International Science and Engineering Fair, Maddison King presented her latest buoy. The competition allows the students to present their winning science fair projects. The current cost of the prototype is about $300 but if the devices were developed in a larger amount then the cost will be decreased automatically. A future version of the buoy involves advance things likely warning siren. Maddison King stated that her invention could help tourist people that don’t understand the local language because warning lights and sirens are easy to understand.