AircraftA collaboration of aircraft makers, fuel cell developers and university engineers have come a step closer to zero emission passenger flights with the first flight of a hydrogen fuel cell four-seater electric aircraft. The twin-cabin, (relatively) low-noise HY4 took off at 11:15 am (local) today for a quick zip around Stuttgart Airport. The HY4’s 21.36 m (70 ft) wing is home to the HY4’s central single propeller with a two-seater fuselage on either side, a…
Hydrogen fuel cell four-seater passenger plane takes to the air
More of Today's Solutions
Is No Mow May helping bees or just overgrown hype? Here’s what the experts say
BY THE OPTIMIST DAILY EDITORIAL TEAM Letting your lawn grow wild in May to help bees and other pollinators? That’s the pitch behind No ...
Read MoreWhy experts say the hantavirus outbreak is not another COVID
BY THE OPTIMIST DAILY EDITORIAL TEAM When a cluster of hantavirus cases emerged aboard the M.V. Hondius, a Dutch polar expedition vessel sailing from ...
Read MoreHow magnesium improves immune cell capabilities
Magnesium is an essential mineral vital to many bodily functions including muscle contraction, nerve transmission, blood pressure, and immunity. Therefore, it makes sense that ...
Read MoreShaping tomorrow: Greece’s progress toward same-sex marriage equality
In a historic move, Greece's center-right government, led by Prime Minister Kyriakos Mitsotakis, is poised to legalize same-sex civil marriage and adoption. Crucially, this ...
Read More
