converter Inventions Greatest inventions of humans en false false aircraft Achieve flight through fixed wings false false antibiotics Drugs that kill bacteria false false automobile A motor vehicle for passengers false false batteries Store electrical energy false false bicycle Efficient human powered vehicle with 2 wheels false false boomerang When thrown, it returns false false clocks Accurately displays the time false false computers One is in front of you right now false false dynamite A powerful high explosive false false electricity The flow of electrons false false elevator Allows for speedy vertical travels within tall buildings false false email Fast method of sending mail through the internet false false helicopter Rotating blades on this craft allow flight false false hovercraft Vessel that floats on a cushion of air false false internet The global computer communications network false false lasers Intense beam of light false false paperclip Holds paper objects together temporarily false false photography Snapshots of moments in time false false plastics Petroleum-based polymers with a range of properties false false radar Radio waves provide the spatial location of objects false false radio Sound recieved from electromagnetic waves false false steamengine The pressure of water vapor drives this engine false false telephone A vocal communication device false false television Electrical device that displays moving images false false tetris Puzzle game made famous by the Gameboy console false false transistor Foundation of modern electronics false false velcro Hook and loop fasteners false false wheel Circular object that allows for low-friction motion