Popular SciencePopular Science gives our readers the information and tools to improve
their technology and their world. The core belief that Popular
Science and our readers share: The future is going to be better, and
science and technology are the driving forces that will help make it
better. |
多く使われている語句
airplane alpha rays amateur angle angle plate batten beetle binding posts black fly block Blueprint bolts bomb bottom camera cement chines chlorophyll circuit clamp contest copper cutters diamonds direct current drawings drill dynamite edge electric engine entomologists experience fastened feet film fish rains focal plane shutter frame free book gage glass handle heat Heroes of Science hole inches insects invention inventor iron Japanese beetle keel laboratory lathe lead acetate legs lens light longerons machine mechanical metal miles milling machine motor mounted movie operation parasites Patent photographs picture piece pilot pipe plane plank plants plate POPULAR SCIENCE MONTHLY Prizes rabbet radio radium radon rubber shellac ship shown shows shutter side skis solder speed sportboat stem strip surface tank tion tool transom tray tubes turned wheel wings wire wood York