![Techfest, IIT Bombay on Twitter: "In this week's #TechTuesday, Techfest, IIT Bombay brings to you a 100% pollution free mechanism that harnesses gravity as a source of power!! To read more, visit Techfest, IIT Bombay on Twitter: "In this week's #TechTuesday, Techfest, IIT Bombay brings to you a 100% pollution free mechanism that harnesses gravity as a source of power!! To read more, visit](https://pbs.twimg.com/media/DmPYLqPXgAIXXbC.jpg)
Techfest, IIT Bombay on Twitter: "In this week's #TechTuesday, Techfest, IIT Bombay brings to you a 100% pollution free mechanism that harnesses gravity as a source of power!! To read more, visit
![Gravity Electric Pepper Grinder or Salt Mill | White LED Light | Easy One-Handed Automatic Use | Battery Powered | Adjustable Coarseness | Brushed Stainless Steel | By Westoak | Pricepulse Gravity Electric Pepper Grinder or Salt Mill | White LED Light | Easy One-Handed Automatic Use | Battery Powered | Adjustable Coarseness | Brushed Stainless Steel | By Westoak | Pricepulse](https://images-na.ssl-images-amazon.com/images/I/51xbDMV2nZL.jpg)
Gravity Electric Pepper Grinder or Salt Mill | White LED Light | Easy One-Handed Automatic Use | Battery Powered | Adjustable Coarseness | Brushed Stainless Steel | By Westoak | Pricepulse
![ABSTRACT Gravity light is a gravity powered lamp designed for use in developing as a replacement lamps. It uses a bag filled with rocks or earth, attached. - ppt download ABSTRACT Gravity light is a gravity powered lamp designed for use in developing as a replacement lamps. It uses a bag filled with rocks or earth, attached. - ppt download](https://slideplayer.com/slide/13563388/82/images/4/How+does+it+Work.jpg)