18 Amazing Inventions That Humans Should Have Invented Sooner.

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At this airport, they have a machine that teaches you how to perform lifesaving CPR.

Humans have made some incredible technological advancements and have created some amazing things. Take the smartphone, for example. The invention of the smartphone has radically changed the way we live. With a smartphone, we can make flight reservations, use it to scan boarding passes, schedule Uber, do online banking, control temperature, lights, and alarms at our homes while we are away, and so much more. Other inventions such as 3D printers, self-driving cars, and robotic maids might be as common as the smartphone soon. It's exciting to see what other technological advances are in store for us over the next few years. The following is a list of some of the latest inventions, some simple, some complicated, but all are very convenient and useful, and they'll make you wonder why they weren't invented much sooner.

What a great way to spend your downtime. Everyone should learn CPR!