_hypx

9 ms·

61.
by _hypx 3y ago
If you're assuming it is compressed, to say 700 bar, then it would have a higher volumetric density.
62.
by _hypx 3y ago
Hydrogen has a higher energy density by volume compared to a li-ion battery. People really need to check their fact here.
63.
by _hypx 3y ago
They usually sell crippled GPUs to the low end of the market. That's a segment of the market they no longer really serve. They also didn't do anything to hide the fact that their GPUs were really being sold to miners and not gamer
64.
by _hypx 3y ago
Nvidia sold dedicated crypto mining cards. It definitely did went into crypto. They are charging non-competitive prices for their consumer GPU market. This is opening the door to more competition. The desktop discrete video market is not th
65.
by _hypx 3y ago
Take this as a sign that you should delete your Paypal account right away.
66.
by _hypx 3y ago
Nvidia might be going too far with that. They abandon good ideas too quickly and pursue stupid new things too often. Cryptocurrency were an example of that. I fear their obsession with AI might be the next one. They should focus more of the
67.
by _hypx 3y ago
Hydrogen fuel cells are in a midst of a revolution. This is like dismissing photovoltaics in the mid-2000s.
68.
by _hypx 3y ago
We are also reaching another point in this conversation. The "it doesn't matter how hard it is, it has to be done, period." And we are reaching that point with carbon capture. It does not matter how hard it seems. It still ha
69.
by _hypx 3y ago
Anything that works like existing rechargeable batteries. Those would be considered conventional batteries. There is basically no path to a high enough energy density for airplanes for those types of batteries. Things that involve metal-air
70.
by _hypx 3y ago
You are basically ignore the laws of physics. There will never be a airplane with decent range running on conventional batteries. Even now, battery powered airplanes are just powered gliders or ultra-lights, not something that will send rea
71.
by _hypx 3y ago
Heard that said every few months. It has yet to happen.
72.
by _hypx 3y ago
The Leaf used a very safe battery chemistry. Modern BEVs do not. There has been no fundamental advancements in battery technology in that timeframe.
73.
by _hypx 3y ago
I call them "magic batteries from the future." It is increasingly implausible that any miracle discoveries will happen anytime soon. The difference between you and me is that I see it as a sign that we need to move on from convent
74.
by _hypx 3y ago
You're number bending. You cannot move continuously change a few percentage points at each step. You can create whatever outcome you want by doing this. In reality, the most efficient numbers are 41.5 kWh/kg with modern technology
75.
by _hypx 3y ago
> While hydrogen fuel is expensive and the buses come at a slightly higher cost than electric battery vehicles, Tree said a price analysis from Metro revealed that the total capital costs for investing in hydrogen were lower, primarily b
76.
by _hypx 3y ago
Agreed. Here's what I've noticed: > I get a little of this feeling when I watch Americans argue about climate change; the discussions seem stuck back in 2010 This article itself feels like a throwback to 2010. He acts like sola
77.
by _hypx 3y ago
https://archive.ph/kmLSM
78.
Xi’s Policies Have Shortened the Fuse on China’s Economic Time Bomb(foreignpolicy.com)
11 points by _hypx 3y ago|2 comments
79.
by _hypx 3y ago
https://archive.ph/8fLay
80.
European carmakers bet on a future with e-fuel vehicles(ft.com)
1 points by _hypx 3y ago|2 comments
81.
by _hypx 3y ago
You are not keeping up with latest events. This is the same story as when solar took off, and a bunch of engineers came out to "explain" why solar power was unviable. In reality, it was already taking off, and those people simply
82.
by _hypx 3y ago
That mirrors similar rhetoric surrounding wind and solar just before they hit large-scale deployment. As it turns out, sustainable resources tend to be much cheaper than unsustainable ones.
83.
by _hypx 3y ago
It is an electrochemical process. It is similar to other electrochemical processes, like charging batteries. The better question is how did people get convinced it wasn't efficient? Likely, this is the result of some kind of corporate
84.
by _hypx 3y ago
Green hydrogen is made from water.
85.
by _hypx 3y ago
TLDR: It's Medicare costs. It's plateauing rather than rising.
86.
by _hypx 3y ago
If you can make hydrogen and capture carbon, you have the ingredients for making plastics. It will likely be more expensive than today’s plastics, at least initially, but for critical needs like medical devices, this is totally acceptable.
87.
by _hypx 3y ago
Last I checked, solar power is very cheap. Your problem is the same as with many degrowthers, you are basically stuck in the past and refuse to change your mind despite new information. It is the arrogance of "knowing everything"
88.
by _hypx 3y ago
It's immediately obvious from basic physics that the world is bathed in green energy. It's availability is thousands of times greater than fossil fuel energy: https://www.freeingenergy.com/the-earth-gets-more-solar
89.
by _hypx 3y ago
Even that is hopelessly optimistic. Tesla has no unique technologies. It can only make the simplest type of car possible: the BEV. It cannot even benefit from the advantage of cheap labor like China companies can. A realistic analysis would
90.
by _hypx 3y ago
BEVs are very simple vehicles. Anyone can make them. There is no such thing as a technological lead here.

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