https://www.open.edu/openlearn/mod/oucontent/view.php?id=2190§ion=1.2
Crude oil is currently our most important global source of energy. It is vital in the manufacture of many modern materials. But the worlds supply of oil is...
personal transportlivingwithoutoilopenlearn
https://www.dlr.de/en/images/2014/4/the-skyrider-a-design-study-for-the-personal-transport-of-the-future_17233
With special aircraft, known as Personal Aerial Vehicles (PAV), it will be possible for anyone to carry out daily journeys through the air in the future.
design studypersonal transportskyrider