Pop-up book featuring record-breaking and revolutionary machines and mechanical feats. Discusses inventions in space travel, home appliances, deadly machines, watches and clocks, ancient inventions, and robots.
The US Coast Guard offers a wide array of career opportunities. Comments from men and women who have served in the military, current statistics and forecasts, and realistic descriptions provide a useful look at Coast Guard jobs ranging from boatswain's mates to health service technicians to operations specialists.
Robotics is already used to protect people in cities all around the United States. As robot technology continues to grow, patrolling human police officers could someday be a thing of the past! Humanoid robots might be rolling around city streets or heading into dangerous situations in place of police officers. From surveillance cameras to bomb disposal, the incredible robots already used in law enforcement will engage and surprise readers. The main text explains the real-life technology used today, and full-color photographs enhance the science and engineering content.
The inhabitants of Mammoth Island have decided to make gravel for their new roads by dropping boulders off a tower and smashing them to bits. A young Islander suggests that it would take less effort to roll the boulders up an inclined plane than to hoist them up the side of the tower.
A knight in shining armor joins the inhabitants of Mammoth Island as they uncover a variety of benefits from the use of the most spiral of simple machines, the screw.
