Helium is a non-renewable substance which there is a global shortage of. I wonder how much it takes to lift that thing 😅
China tests world's first megawatt-class flying wind turbine
Submitted 17 hours ago by Innerworld@lemmy.world to technology@lemmy.world
Comments
oyzmo@piefed.social 16 hours ago
Blade9732@lemmy.world 16 hours ago
Wouldn’t hydrogen be better for lifting something like a wind turbine.
oyzmo@piefed.social 16 hours ago
Yes, but I think hydrogen likes to go bang 😆
ramenshaman@lemmy.world 13 hours ago
Yeah, that’s what the folks who designed the Hindenburg thought as well.
GreenShimada@lemmy.world 14 hours ago
Not necessarily. It’s not about the boom factor alone - hydrogen is a small atom, and so under pressure, most commonly used materials are permeable to it. It leaks through every material. It really takes something as solid as steel pipes for hydrogen atoms to not work their way through and escape. So while hydrogen would be cheaper to produce at scale, it’s also constantly leaking out of any container.
For wind turbines, static electricity and storms would be huge risks as well, so the application of a floating wind turbine would not be ideal.
recked_wralph@lemmy.world 7 hours ago
Not once we get fusion reactors up and running, then we’ll be drowning in that sweet sweet helium-4
jaennaet@sopuli.xyz 2 hours ago
Not once we get fusion reactors up and running
Yeah, about that…
BussyCat@lemmy.world 15 hours ago
Helium may not be renewable but we can manufacture it from things like boron
trolololol@lemmy.world 11 hours ago
I need someone to explain the joke. Waiting 100,000 years for radioactive decay seems to be a bit boring as a punch line.
yakko@feddit.uk 13 hours ago
I did not know that
ileftredditforthis@lemmy.world 15 hours ago
People in the UK, mainly the coffin dodgers mind, bitch about how ugly wind turbines are they’d loose their shit about these. They seem to prefer the beautiful and discreet electricity pilots it seems.
ClockworkOtter@lemmy.world 15 hours ago
Oh no, they don’t like pylons either. They just want coal plants in poor people’s gardens and subterranean power cabling.
kokesh@lemmy.world 11 hours ago
tRump will shit himself (again) when he sees this!
mx_smith@lemmy.world 3 hours ago
BarneyPiccolo@lemmy.today 7 hours ago
Fly one over the White House, and another over Maralago.
WorldsDumbestMan@lemmy.today 7 hours ago
We need better propulsion methods than Helium…
…but we don’t exactly have other lighter than air alternatives.
TwodogsFighting@lemdro.id 54 minutes ago
What about a really big kite?
fluxx@mander.xyz 7 hours ago
Well, there’s hydrogen, but that has its own downsides. Like it’s a bit explody, for example.
girsaysdoom@sh.itjust.works 4 hours ago
Not to mention that the flames while combusing are invisible by sight. It’s also really difficult to keep contained and if it leaks it has ~11x the impact of CO2 per this article.
I used to like the idea of hydrogen as an energy medium but all of its attributes combined just make it really infeasible to use except for immediate applications.
NinePeedles@sh.itjust.works 17 hours ago
While in the US our brilliant leader is trying to reopen old coal mines.
ramenshaman@lemmy.world 13 hours ago
That being said, there are American companies that have been working on flying wind turbines for quite a while.
RememberTheApollo_@lemmy.world 7 hours ago
We have working models. The difference is the Chinese can say “make it happen”, and they do it. In the US they say, “Gimme lots of investment capital and how can I profit massively off of this?” so it goes nowhere quick.
Maybe we should call them “AI power dirigibles” and people will put some money into it.