Augmented reality
Back in 2014, Google launched Google Glass, an optical head-mounted computer glass that displays pieces of information in a smartphone-like but hands-free format. In other words, people can now join an event and feel like they are physically in it with the touch of a button.
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Reusable rockets
This might be surprising for most of us, but we do have reusable rockets. Because the costs of sending off rockets into space to be lost there were gigantic, brilliant minds have come up with a plan of creating multi-use rockets. In 2015, their efforts paid off, resulting in the first multi-use rocket ever launched.
