Incredible Flying Jet Packs

上映日期

2015-01-01

上映年份

2015

片长

51分钟

历史资料评分

6

剧情介绍

When the jet pack took its first flight in the 1960s, it was loud, difficult to pilot, and could stay in the air for about 30 seconds. Over 50 years later, not much has changed. But visionary engineers are hard at work to make them quieter, safer, and more practical.