Hacker News with Generative AI: Hydrogen

Half of the universe's hydrogen gas, long unaccounted for, has been found (news.berkeley.edu)
Astronomers tallying up all the normal matter — stars, galaxies and gas — in the universe today have come up embarrassingly short of the total matter produced in the Big Bang 13.6 billion years ago.

Astronomy, Universe, Cosmology, Hydrogen

8 points by gmays 1 day ago | 0 comments

One quantum transition makes light at 21 cm (bigthink.com)
Across the observable Universe, there are some 10^80 atoms, and most of them are simple hydrogen: made of just one proton and one electron each.

Quantum Physics, Astronomy, Hydrogen

253 points by Brajeshwar 2 days ago | 158 comments

Hydrogen vs. Battery Buses: A European Transit Reality Check (cleantechnica.com)
Two more hydrogen bus trial failures crossed my screen this morning, so I thought I’d share. Both are in Europe, but while one is in the capital of the EU, the other is across the Channel in the heart of the United Kingdom’s oil and gas industry. While I’m at it, I’ll provide a rundown on where all of the EU’s funding has gone, and what the constant refrains are.

Hydrogen, Electric Vehicles, Transportation, Europe, Energy

97 points by xbmcuser 10 days ago | 189 comments

Is Green hydrogen the "gas of the future"? (2023) (adamtooze.substack.com)
When hydrogen burns it leaves water. Though as a gas it is not dense, by weight hydrogen is three times energy-denser than kerosene. Hydrogen is also the most abundant element in the universe and H2 can be produced by electrolysis by applying an electric current to water. Electricity in turn can be generated from the wind and sun.

Energy, Climate Change, Green Technology, Hydrogen

14 points by simonebrunozzi 30 days ago | 12 comments

Why do transit agencies keep falling for the hydrogen bus myth? (cleantechnica.com)
In recent months I’ve assembled a long, long list of hydrogen bus trials that ended up with the transit agencies realizing what should have been obvious before they started: hydrogen buses are a lot more expensive and battery electric buses are much cheaper and more reliable.

Transportation, Sustainability, Electric Vehicles, Hydrogen, Public Transportation

280 points by guerby 43 days ago | 482 comments

Hydrogen becomes a superfluid at nanoscale, confirming 50-year-old prediction (phys.org)
Hydrogen nano-clusters at low temperatures display 'superfluidity'—a quantum state of frictionless flow only previously observed in helium.

Physics, Quantum Mechanics, Superfluidity, Hydrogen

45 points by bookofjoe 57 days ago | 2 comments

Why the next energy race is for underground hydrogen (technologyreview.com)
It might sound like something straight out of the 19th century, but one of the most cutting-edge areas in energy today involves drilling deep underground to hunt for materials that can be burned for energy. The difference is that this time, instead of looking for fossil fuels, the race is on to find natural deposits of hydrogen.

Energy, Hydrogen, Climate Change, Technology

27 points by keepit 93 days ago | 51 comments

Toyota rethinks its bet on hydrogen (ft.com)

Toyota, Hydrogen, Automotive Industry, Energy

64 points by JumpCrisscross 106 days ago | 85 comments

Inhaling Hydrogen-Rich Gas Before Acute Exercise Alleviates Exercise Fatigue (thieme-connect.de)
Hydrogen, as an antioxidant, may have the potential to mitigate fatigue and improve selected oxidative stress markers induced by strenuous exercise.

Hydrogen, Exercise, Health, Science, Antioxidants

5 points by bookofjoe 145 days ago | 1 comments

Portable hydrogen cartridges by Toyota can supply energy to cars and appliances (designboom.com)
Toyota Motor Corporation exhibits its portable hydrogen cartridges at Japan Mobility Show Bizweek 2024 in Chiba Prefecture, Japan.

Hydrogen, Energy, Transportation, Technology, Toyota

11 points by ashitlerferad 184 days ago | 6 comments

Low-carbon ammonia offers alternative for agriculture and hydrogen transport (techxplore.com)
A new way of making ammonia, by harnessing the unique power of liquid metal, could lead to significant cuts in carbon emissions caused by production of the widely-used chemical.

Green Technology, Chemistry, Sustainability, Agriculture, Hydrogen

11 points by PaulHoule 212 days ago | 2 comments

'Green' Hydrogen Produces 37 Times More Global Warming Than Carbon Dioxide (dailysceptic.org)

Climate Change, Environmental Science, Energy Production, Hydrogen

6 points by XzetaU8 239 days ago | 0 comments

Walmart first major retailer in North America to deploy hydrogen semi truck (electrek.co)