# Human Heat-Powered Torches The Hollow Flashlight by Ann Makosinski is Ingeniously Eco-Friendly By Meghan Young | Published 2013-07-05 | Eco Source: Trend Hunter, https://www.trendhunter.com/trends/hollow-flashlight References: [dvice](http://www.dvice.com/2013-6-29/teenager-creates-flashlight-runs-human-body-heat) The Hollow Flashlight is impressive for a number of reasons. Namely, that it was created by a 15 year old whiz hailing from Victoria, British Colombia, Canada, and that it harnesses the [heat from human hands](https://www.trendhunter.com/trends/magnetic-hand-warmers) to light up. The brainchild of Ann Makosinski, the Hollow Flashlight was created in collaboration with St. Michaels University School in Canada. Inspired by the idea of Peltier tiles, which create energy when one side is heated while the other side is cooled, the Hollow Flashlight cost only $26 to make. She paired the tiles with a store-bought circuit, PCV pipe and aluminum. Makosinski has been chosen as one of 15 finalists for [Google’s](https://www.trendhunter.com/trends/landscape-restoration) global science fair thanks to her invention of the Hollow Flashlight. ## Trend Insights (Trend Hunter) - Score: 3.1/10 - Popularity: 27% | Activity: 58% | Freshness: 8% - Audience gender: 50% men, 50% women - Primary generations: Gen Z, Millennial, Gen X - Top markets: North America ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Eco](https://www.trendhunter.com/eco) ## Key Themes ### Key Themes Behind This Trend - **Human Heat-powered Devices:** Opportunity for disruptive innovation in creating eco-friendly gadgets that use the heat from human bodies to function - **Peltier Energy-generating Technology:** Opportunity for disruptive innovation in researching and developing Peltier tiles and using them in various applications - **Low-cost Sustainable Technologies:** Opportunity for disruptive innovation in creating affordable and sustainable technology solutions to address pressing global issues ### Where This Applies - **Consumer Electronics:** Opportunity for disruptive innovation in the creation of sustainable consumer electronic gadgets - **Energy:** Opportunity for disruptive innovation in the development of energy-generating technologies that use sustainable and environment-friendly resources. - **Education:** Opportunity for disruptive innovation in enhancing education and encouraging innovation through programs that support students in creating novel and sustainable solutions ## Related on Trend Hunter - [Sustainable Light Designs](https://www.trendhunter.com/trends/geolectric-lantern.md) - [Sleek Smartphone-Inspired Flashlights](https://www.trendhunter.com/trends/whitt-flashlight.md) - [Interchangeable Component Camping Flashlights](https://www.trendhunter.com/trends/ecofriendly-camping-lantern.md) - [Breath-Activated Flameless Lighters](https://www.trendhunter.com/trends/clean-torch.md) - [Diminutive Desktop Hand Warmers](https://www.trendhunter.com/trends/desktop-hand-warmers.md) - [Solar-Powered Blankets](https://www.trendhunter.com/trends/solarpowered-blanket.md) - [Multipurpose Flashlight Concepts](https://www.trendhunter.com/trends/onurhan-demir.md) - [Miniature Camping Flashlights](https://www.trendhunter.com/trends/hoto-flashlight-duo.md) - [Diminutive Dual-Beam Flashlights](https://www.trendhunter.com/trends/lightweight-flashlight.md)