Thanks to everyone who participated! There were so many unique solutions for this challenge. We believe these finalists are the best solutions. Next we'll be taking an in-depth look at all of the technical specifications and how each entrant performed in those areas. Which one is your favorite? Did we leave anything amazing off the list? See something we should know about? Let us know in the comments!
The design is a super cool concept in an important sector with beautiful execution and documentation.
Such a cool machine! Hydrogen is the way to go for clean aviation!
Great effort with a creative solution to fight global warming! The idea is nicely presented in the project description and motivating video.
Fantastic application to put hydrogen front and center in society!
Very fun idea. Expensive design for a festival now, due to the price of fuel cells today. It may come true in the future when fuel cells become cheaper.
The design demonstrates a nice concept and application. It shows why hydrogen is superior to batteries in some applications.
Hydrogen for cooking - addressing a major humanitarian challenge!
The idea is attractive. Compressed bottled hydrogen is perhaps not feasible as a source of energy, but maybe metal-hydride solutions are not too far away.
Detailed documentation of project and application. Innovative uses of hydrogen! However, the science is still out on the medical benefits of hydrogen water.
This is an interesting idea of a cool flying machine. Nice marketing material, too!
For those new to the Challenge process, we release what we believe to be the top entries. They are listed in no particular order. Over the next two weeks, participants are able to voice their support or concerns. We encourage everyone following to leave a comment with their favorite or letting us know if we left a great entry out of the mix. Don't think of this as a vote - we want to connect with you on these concepts and that means more than having you submit entries it also means getting your feedback, too.
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