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Phi for All last won the day on February 23
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About Phi for All
- Birthday May 13
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Location
CO, USA
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Almost everything
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U of CO/Communications
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51
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Busy married father
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Consultant
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- Chief Executive Offworlder
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How many M-Type asteroids will Earth (truly) need?
Phi for All replied to GeeKay's topic in Other Sciences
Am I missing something? Why would you bring it back here, where it would be really, really expensive nickel-iron, or really, really expensive platinum? I don't have numbers, but terrestrial mining has to be a lot cheaper in almost every aspect. Does not having to pay for mineral rights offset asteroid mining's inherent challenges and their costs, which include identifying and safely bringing the metals back to Earth? We can keep the metal out in space to build HE3 gathering facilities, something we'll need more of for quantum computing and medical imaging. Not sure how I feel about mining the moon for it, but we don't need much to make a big difference and it's in limited quantities on Earth. It makes more sense to bring this back. Anything we don't have to send offworld is a resource we get to keep, so I think it makes sense to use what we find out there out THERE as much as possible. At some point, we'll need the metals from asteroids for more projects out there. -
Phi for All started following Second time I'm unable to contribute. , Enhancing the Efficiency of Fuel Cells with Caffeine , How many M-Type asteroids will Earth (truly) need? and 7 others
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Enhancing the Efficiency of Fuel Cells with Caffeine
Phi for All replied to toucana's topic in Engineering
This had to be it. "I didn't spill coffee on the electrode, I applied a caffeine/sugar solution in the hopes of increasing fuel cell efficiency!" -
The Beginning of the Universe
Phi for All replied to Chris Sawatsky's topic in Astronomy and Cosmology
Analogy doesn't help much with this. It confuses things further. Very simply, so simply that it can't possibly be held to any degree of accuracy: the universe was extremely small, the matter in it was extremely dense and therefore extremely hot, and then the universe (which is everything there is) expanded rapidly (and the last point, working backwards, at which we can accurately measure it is what we call The Big Bang). At some point, the density of matter decreased enough to allow space between it to form, and the temperatures continued to fall. It could be that all that matter squeezed so small is similar to what happens in a black hole, but black holes happen inside the universe, and particles that fall inside are measured relative to the black hole, and no velocity can change that. When the whole universe is inflating itself so rapidly though, everything is different because everything is moving and expanding, everything in the universe is participating in the event. And I've probably made it worse. -
How many M-Type asteroids will Earth (truly) need?
Phi for All replied to GeeKay's topic in Other Sciences
Mining asteroids makes economic sense only if you leave the metals out there, for use in outer space endeavors. Imagine having tons of metal to work with that you didn't have to bring up from Earth's surface a few kilos at a time at hideous cost. -
That's not a level of knowledge, that's an age range. We're a science DISCUSSION forum. We talk about science topics. Videos are difficult to discuss, and take a fixed amount of time to view. We prefer the written word, where we can assess a post very quickly for veracity and accuracy. We can talk about subjects for your channel, but we have no interest in helping you promote your channel, which is usually what people want when posting their own videos here. We would love to talk about Earth Science with you. Watching you talk about Earth Science? Not so much.
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How does the vileda swivel mechanism work?
Phi for All replied to foren_space's topic in Engineering
So it's similar to a pottery wheel with a manual foot pedal, except it's function is just to rinse the mop? -
I really need your help with some calculations
Phi for All replied to tmdarkmatter's topic in Astronomy and Cosmology
! Moderator Note If it's here, and in a mainstream science section, it WILL be a discussion or it will be closed. I'm not sure what form you think feedback on this matter will take, but here at SFN, it's going to be discussed. If you have a viable alternative, we can discuss it. Oooh, the irony! -
You mean numerology. It's not math.
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! Moderator Note I have to move this out of Quantum Theory, but I really have no place to put it. Can you support an argument for this concept in Speculations? It's hard to see how you'd do it. I'll put it in the Lounge for now. I also have to say that science discussion works SO much better when you stick to mainstream explanations. You seem to be looking for woo where reason and evidence are the usual standards. Lots of actual studies are available on the topic of thoughts affecting experiences.
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do you believe demon possessions and fallen angels are real
Phi for All replied to knowledgeispower917's topic in Religion
This seems unproductive as a form of belief, discarding one extraordinary explanation for another. Neither angels nor extraterrestrials have as much supportive evidence as virtually ANY other explanation. Weather balloons are more likely than Michael or Martians. -
How do we get the rights of a user in Sailpoint?
Phi for All replied to srikanthbollu's topic in Computer Help
Are you sure you want to use a platform that forces users to look for help outside the platform's own website? If I'd paid for this, I'd be really mad if they couldn't help me. -
Second time I'm unable to contribute.
Phi for All replied to naitche's topic in Suggestions, Comments and Support
This happens to me sporadically. Clears right up if you reload the page. I suspect it's a browser issue, but perhaps we should mention it to the Admins to see if it's an Invision bug. -
I would imagine there's a point where the stability of having so many legs is overshadowed by the inefficiency of having to move them all, especially on a bigger world with more influence from gravity.
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! Moderator Note It's against our rules to require anyone to watch a video or go offsite in order to participate in a discussion. Please give a summary of the concept you want to talk about.