Not exact matches
Center said
hydrogen fuel cells are the «ultimate technology for the long term» because the cars boast faster re-fill times, perform
better in colder weather, and offer longer ranges
than electric vehicles.
According to the study, electric drives have a
better starting position
than engines running on biofuels or
hydrogen, given the unforeseen continuing drop in battery prices.
Raymond Pierrehumbert at the University of Chicago and Eric Gaidos at the University of Hawaii in Honolulu calculated the warming effect of a
hydrogen blanket on Earth - sized planets, as
well as on worlds a few times more massive
than our own, known as super-Earths.
Hydrogen is a very
good carrier for renewable energy because it is abundant, generates zero emissions, and is much easier to store
than other energy sources, like solar or wind energy.
«We discovered that methane and
hydrogen, and their interaction with carbon dioxide, were much
better at warming early Mars
than had previously been believed.»
British Petroleum, for instance, is spending more
than a billion dollars to fund
hydrogen power plants in California, as
well as projects in wind and solar power.
The University of California, Davis, estimates that the cost per gram of
hydrogen produced from the electrolysis of water will remain more expensive
than hydrogen produced from natural gas with carbon capture and sequestration
well through the end of the decade.
In testing with
hydrogen peroxide, a strong oxidizing agent, the researchers found their most effective cerium oxide III nanoparticles performed nine times
better than a common antioxidant, Trolox, at first exposure, and held up
well through 20 redox cycles.
But the small telescope may be
better at looking even farther into the past
than the larger arrays, allowing it to look at
hydrogen atoms heated by the very first stars, Bowman says.
And with a barrel of oil costing more
than $ 80 per barrel, making gasoline from the carbohydrates in plants rather
than much - touted
hydrogen is proving a
better business opportunity for Cortright and Virent Energy Systems, the Madison, Wisc. - based company he founded to commercialize the technology.
Hydrogen peroxide works differently
than vinegar and is
better at removing different types of stains.
If scientists could spot this
hydrogen evaporating from a planet that is a bit more temperate and little less massive
than GJ 436b, that is a
good sign of an ocean on the surface.
«Melanie Sanford's insightful studies on the details as
well as applications in the field of carbon -
hydrogen bond activation have led to new methods to efficiently modify existing pharmaceuticals to arrive at new and
better forms in a more efficient and rapid way
than was previously possible.
It produced oxygen
better than existing commercial catalysts and produced
hydrogen at a comparable rate.
The data allowed them to confirm the mass of the planet as
well as determine the approximate metallicity (a number of elements heavier
than hydrogen and helium within a celestial body), and the primary composition of the planet's atmosphere.
Monounsaturated and polyunsaturated fats are considered as
better than saturated fats, and saturated fats are
better than artificial trans fats which are created in an industrial process that adds
hydrogen to liquid vegetable oils to increase their shelf life and make them solid, easy to use and inexpensive to produce.
We don't even know how much
hydrogen fuel will cost, although the
best guess is closer to expensive gasoline
than to cheap gasoline.
Way
better looking
than the Toyota
Hydrogen auto.
The
best results came from using one mist right after the other - collectively being ten times more effective
than using either spray by itself, or
than mixing the vinegar and
hydrogen peroxide in one sprayer.
Vomiting may cause more harm
than good, so call your veterinarian before you give your dog an oral dose of
hydrogen peroxide.
But a
good chunk of humanity will survive, and wind up using fusion powered
hydrogen ramjets to reach the stars, rather
than the vanishing fossil fuels.
I suspect that we will be hearing a lot more about
hydrogen cars too; the fossil fuel companies might
well fund a fake «
hydrogen economy» because the cheapest
hydrogen is made by steam reforming of natural gas; people think that this is somehow
better than just running a car on CNG.
FCVs have significantly longer driving ranges and lower refuelling times
than comparable BEVs, and it is also possible for them to use the least amount of petroleum (
well - to - wheels) per mile, depending on the type of
hydrogen used.
Yaghi's group and Jeffrey Long's group at UC Berkeley both recently created MOFs that can hold up to 7.5 % of their weight in
hydrogen,
better than a benchmark for
hydrogen storage set by the U.S. Department of Energy.
Once
hydrogen production is converted to a non-fossil source (probably electrolytic or thermochemical splitting of water, powered by nuclear energy) and all industrial
hydrogen (for things like the Haber Process) sourced thus, it would probably be
better to synthesize hydrocarbon fuels (either methanol, or Fischer - Tropsch petrol or diesel)
than attempt to use
hydrogen directly.
-- Muller believes humans are changing climate with CO2 emissions — humans have been responsible for «most» of a 0.4 C warming since 1957, almost none of the warming before then — IPCC is in trouble due to sloppy science, exaggerated predictions; chairman will have to resign — the «Climategate» mails were not «hacked» — they were «leaked» by an insider — due to «hide the decline» deception, Muller will not read any future papers by Michael Mann — there has been no increase in hurricanes or tornadoes due to global warming — automobiles are insignificant in overall picture — China is the major CO2 producer, considerably more
than USA today — # 1 priority for China is growth of economy — global warming is not considered important — China CO2 efficiency (GDP per ton CO2) is around one - fourth of USA today, has much room for improvement — China growth will make per capita CO2 emissions at same level as USA today by year 2040 — if it is «not profitable» it is «not sustainable» — US energy future depends on shale gas for automobiles;
hydrogen will not be a factor — nor will electric cars, due to high cost — Muller is upbeat on nuclear (this was recorded pre-Fukushima)-- there has been no warming in the USA — Muller was not convinced of Hansen's GISS temperature record; hopes
BEST will provide a
better record.
But more
than just water comes from the ground: there's a lot of carbon dioxide and
hydrogen sulphide as
well.
Furthermore, when accurate main - sequence mass - loss rates are used to calculate the evolutionary tracks, the predicted surface
hydrogen and nitrogen abundances of the blue remnants agree much
better with observations of the brightest LBVs
than before.
The expo, which had only two hybrid vehicles eight years ago, now boasts 24 — not to mention close to 40 flex - fuel models, as
well as more
than 10 diesel, one
hydrogen, and several concept vehicles.
Well - to - wheel, using
hydrogen produced from natural gas to feed a fuel cell produces 30 % — 50 % less carbon dioxide
than just burning the fuel to provide the same amount of energy.»
For those torn between a plug in electric and an FCV, or hybrid drivers wondering if the «fuel» economy is
better, it has a range of up to three times an electric, and
hydrogen fuel has much denser energy
than gasonline.