Honda successfully launched and landed its own reusable rocket
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I wonder if hydrogen fuels poses any unique risks as compared to petrol.
It's highly explosive.
It’s highly explosive
That's ... why i'm here
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In different ways. For example, it's very rare for a car to explode in a collision, other than in movies.
One of the reasons that make hydrogen difficult to work with in this sense is that hydrogen (H₂) molecules are so small that they can permeate most materials, such as steel. Then it can get somewhat easily to wherever there is a spark, and chaos ensues. Annoyingly you don't even need 100% Hydrogen for that to happen, as it can ignite with a concentration of just 4%.
After we stopped using Hydrogen mostly as a consequence of Hindenburg's accident, it's taken years to perfect hydrogen fuel cells to a safety standard that can be used in cars. As far as I know, its use has been limited to rockets/space propulsion otherwise (where you can just throw millions at the problem to make it safer).
(H₂) molecules are so small that they can permeate most materials, such as steel
Okay, I knew from texts books that H2 is small but I never thought of the real-life consequences of it being so small. Then theoretically, Helium should also be "leaky", right?
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Because the last stage of existence on this planet. Will be febel plans to try and colonize other planets. Because our planet will start to poison us as a defensive mechanism. All of these Corporations need a plan to get off planet.
It would take a lot to make Mars more habitable than Earth. This isn't about colonisation this is simply that it's cool to build rockets.
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It would take a lot to make Mars more habitable than Earth. This isn't about colonisation this is simply that it's cool to build rockets.
Yeah, it's easier to terraform ... Planet Earth!
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I hope they crush SpaceX one day.
By landing on them.
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(H₂) molecules are so small that they can permeate most materials, such as steel
Okay, I knew from texts books that H2 is small but I never thought of the real-life consequences of it being so small. Then theoretically, Helium should also be "leaky", right?
Yep, helium is even worse for leaking! It's actually the smallest noble gas and can escape through tiny pores that even hydrogen can't fit through. Thats why helium balloons deflate faster than air balloons - the atoms literally seep through the balloon material.
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Idk, looks more like Hitachi
Not just for hard drives anymore.
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An alternative to starlink would be great.
An alternative to anything related to Elon would be great.
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Because the last stage of existence on this planet. Will be febel plans to try and colonize other planets. Because our planet will start to poison us as a defensive mechanism. All of these Corporations need a plan to get off planet.
Yes, let spend money to fuck up other planets as well instead of saving this one. /s
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Genuinely curious: how many explosions before the successful test?
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Don't forget, one the sleekest airplanes to ever exist.
N420HA. Not sure if that's the model or the plane's license plate but either way hell yeah
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Yep, helium is even worse for leaking! It's actually the smallest noble gas and can escape through tiny pores that even hydrogen can't fit through. Thats why helium balloons deflate faster than air balloons - the atoms literally seep through the balloon material.
How does Helium fit through places that Hydrogen can't even though its bigger? Is it because Hydrogen would react with things along the way while Helium won't?
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Yeah, it's easier to terraform ... Planet Earth!
It's the only planet we can terraform (As in repairing some of the damage we've done), we are nowhere near able to terraform Mars, not even theoretically and disregarding cost.
Maybe in a century we can. But only maybe. -
Yes, let spend money to fuck up other planets as well instead of saving this one. /s
That’s exactly what they will say.
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This wasn't much more than a toy rocket:
6.3 m in length, 85 cm in diameter,
The test was completed successfully, the first time Honda landed a rocket after reaching an altitude of nearly 300 meters.But still they were successful on their first try, so we will have to see where they take it from here.
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In Japan?
"... it'll be the same, but it's a huge honor to work on this project in our company."
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Because the last stage of existence on this planet. Will be febel plans to try and colonize other planets. Because our planet will start to poison us as a defensive mechanism. All of these Corporations need a plan to get off planet.
Imo it's a good thing tho. Spreading our civilization across multiple planets is the only way to guarantee long long term success. Obviously we should also fix the climate change issue (and many others). But still, being spread across the solar system would give our species redundancy. An extinction event on earth like a large meteor strike would no longer be the end.
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Anything that erodes SpaceX's monopoly is good for me
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Because the last stage of existence on this planet. Will be febel plans to try and colonize other planets. Because our planet will start to poison us as a defensive mechanism. All of these Corporations need a plan to get off planet.
The planet isn't doing anything, we are poisoning ourselves. Or as lemmy puts it "big evil corporations (which we support everyday because it's cheaper than buying local/sustainable) are poisoning us".
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Genuinely curious: how many explosions before the successful test?
Apparently they got it right on the first try.
