Popular_Science_USA_2017_05_06

書籍內容簡介

WEsBIG MACHINES + + A BRIEF HISTORY OF PICKUP TRUCKS TREBUCHETS FOR DAYS WHERE WARSHIPS COME FROM DUBAI? BOLDEST BUILD YET A SANDBOX YOU?L DIG OH YEAH, AND A 5-STORY DIESEL ENGINE + + May/ June 2017 * DO NOT READ WHILE OPERATING HEAVY MACHINERY * CONTENTS CHARTED 0 100 200 The ultimate coal miner p.6 Dyson sphere, up close p.8 300 400 500 600 700 800 900 1000 982,080,000,000 Underwater colonies p.10 Tilting at wind turbines p.12 How rockets stack up p.14 A house-size diesel engine p.16 Secrets…