Installing a solar panel on the sun is easier said than done. The closest real example is probably the Parker Solar Probe: www.youtube.com/watch?v=pOZhPz92Dic
Except the risk of serious side effects from the vaccine is higher than from COVID, in healthy young individuals. But keep believing everything the authority figures tell you, I'm sure it will work out great. And btw, the vaccinated still got sick and transmitted the virus even when asymptomatic so yeah.
Why should I trust you more than “the authority figures” ? What are your figures that I should trust ?
Why should I trust some unknown person on the internet that give me some facts without any evidence ?
Why shouldn’t I trust the data that has been gathered by global scientific communities, validated by experts, cross checked by pairs, some of them I’ve read and understood myself, and also relevant to my actual observations ?
Yes, but only slightly. Zoom in and you’ll see they’re not all lined up. And then, where exactly on Mars is the origin placed? What hemisphere? Which way do we now define as up?
why are scooters practical and motorcycles not? I only ride a motorcycle. any distance too long for bycicle or inconvenient with public transit, I take my motorcycle.
Looks like only because they're presented as dangerous. Convenience - wise they're still the same. Practicality seems to be defined here as a balance between danger and convenience.
Yeah, if you want to electrocute some poor linesman outside.
If you have considered purchasing a generator for emergencies, get the transfer switch installed and be prepared so when you do it, you do it safely.
Obviously you shut off the main breaker so as not to backfeed. Didn't think anyone would be pedantic enough to make me say it. I wasn't writing out a tutorial.
Point being, there exists a purpose for the allegedly purposeless thing.
An interesting article about the Muskmelon, Tesla, and fuel cells. []https://energynews.biz/will-tesla-release-hydrogen-car/ (take the article with a spoonful of salt I think) It's perhaps another attempt at a pump and dump stock fraud as he does need money for twitter. But, I've seen a couple of these blurbs lately and I can't find where they originate from.
Even the ketamine wonder wants to sound like he thinks Tesla is going to abandon pure EVs and build and sell something with a hydrogen fuel cell evidently. If so,and you can't rule out it out completely yet, the ICE engine might not be done yet - just swapping a fuel source.
A fuel cell does not mean it's an ICE. It will still use an electric motor and probably even a small battery.
Hydrogen ICE exist, but are more complex and less efficient.
You could use Hydrogen to produce so-called e-fuels (we had a huge debate about them in Germany), but those can typically be used in normal ICE vehicels.
ICE with hydrogen has some racing applications, but that's about it. It's taking something that already has efficiency issues compared to batteries and making it even worse.
Fuel cells use hydrogen to generate electricity to spin a motor. There are issues with that, as well, but there's no future in ICE either way.
Personally, outside of some niche applications, I don't think fuel cells are going to replace EVs. The losses in efficiency are just to great in the conversion from water to hydrogen/oxygen gasses to electricity - unless someone figures out how to harness the energy released in a hydrogen bomb. But I wouldn't hold my breath for that. I do think that Tesla isn't as long for this world as Musk would have hoped for though. I personally hope he ends up broke and mocked as soon as possible. The world will be just a tiny bit better place IMO.
There's also expected future battery improvements to consider. We can't make a useful battery-powered airplane right now that could do passenger service from LA to Sydney. EV long haul trucking is also in its infancy at a barely feasible level for a limited number of cases. Then there's heavy construction equipment like cranes. All of which are cited as niches that hydrogen would be useful.
Thing is, our battery tech tends to improve--about 5-8% capacity by weight each year, at the higher end of that over the last few years. That's a doubling every 10-15 years. We're not at theoretical limits yet, money is still being pumped into both fundamental research and large scale deployment, and we have every reason to believe this trend will continue. That's going to squeeze out the niches where hydrogen is useful.
A fuel cell generates power through an electrochemical reaction, not combustion. So no, even if we went to hydrogen fuel cells, the ICE engine is done.
so my sisters Mazda MX-30 has more HP than my uncles Peterbilt 389? cool, I'll use it to haul my horse trailer. define "more powerful". Makes the point but XKCD usually does better.
xkcd
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