Oil is out. Petrol addiction must be curtailed if islamo-fascism is to be defeated at its source. And let's face it: bio-fuels are an expensive, inverted power-ratio flop (physics is physics).
One word: batteries. calm down, ladies
Of course, batteries need to be re-charged, and the world's power plants need to be fueled with something. Whether it's king coal or nasty nuclear or so-so solar, we have seen the future, and it's electric. Invest wisely.
The plane, which used propellers, flew at a speed of 100 kilometres an hour for about 20 minutes at an altitude of about 1000 metres using only the hydrogen battery for power, Boeing said in a statement.