Search found 691 matches

by p1t1o
Tue Apr 18, 2017 2:07 pm UTC
Forum: Science
Topic: Safe electrolytes for electrolysis.
Replies: 14
Views: 384

Re: Safe electrolytes for electrolysis.

You can just use distilled water, electrolytes just reduce the energy requirement which for small scale projects, isn't exactly prohibitive. You also want to find some graphite electrodes, if you are using metallic ones, you are likely to get weird "gunge" that is the bain of the amateur e...
by p1t1o
Thu Apr 13, 2017 12:23 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 266
Views: 12956

Re: Science-based what-if questions

morriswalters wrote: How do you do cathodic protection of your water heater?


You wouldnt need it!

Zamfir wrote:But typical jewelry gold of 22kt (90% pure) is easily as strong as standard construction steel


No way, is that really true?
by p1t1o
Wed Apr 12, 2017 12:56 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 266
Views: 12956

Re: Science-based what-if questions

andykhang wrote:That's why I said the above. You can't install gold lightbulb with gold wiring encasing in gold tube without electrocuting the enitre house (and you in it)


On the other hand, the sound quality of your HiFi would be off the chart!
by p1t1o
Wed Apr 12, 2017 12:17 pm UTC
Forum: Science
Topic: Tongue Cleaning Myth?
Replies: 14
Views: 566

Re: Tongue Cleaning Myth?

Im not confusing the two, Im comparing the two.

Either way, it stands that a general disdain for dentists or doctors extends only to the places where the healthcare system resembles the one you are exposed to, so I would caution against advising everyone to ignore their advice.
by p1t1o
Wed Apr 12, 2017 8:25 am UTC
Forum: Science
Topic: Storing Nuclear Waste on the Moon
Replies: 53
Views: 2610

Re: Storing Nuclear Waste on the Moon

Rockets are not launched over populated areas, most of them are launched over the ocean. The worst case is godzilla some dead fish, in the incredibly unlikely event that both rocket and spacecraft fail at the same time. See the Falcon 9 explosion for example: The capsule survived an explosion of th...
by p1t1o
Wed Apr 12, 2017 8:04 am UTC
Forum: Science
Topic: Tongue Cleaning Myth?
Replies: 14
Views: 566

Re: Tongue Cleaning Myth?

Your doctor does not do medical research on you, or perform experiments on his patients. This isn't actually true. It depends on the doctor. I mean, a doctor isn't going to do research on you without your consent, but there are generally various trials happening, at least in a lot of hospitals in t...
by p1t1o
Tue Apr 11, 2017 8:53 am UTC
Forum: Science
Topic: About Sin-gi-jeon
Replies: 3
Views: 265

Re: About Sin-gi-jeon

There is no arrow that can pierce *all* armour. The best tempered plate armours from italy could resist a level-shot bodkin and an uncontained gunpowder charge isn't going to do much more than disorient a person in full-plate. Gunpowder is not that powerful. Traditional Samurai did not have access t...
by p1t1o
Tue Apr 11, 2017 8:40 am UTC
Forum: Science
Topic: Tongue Cleaning Myth?
Replies: 14
Views: 566

Re: Tongue Cleaning Myth?

Practicing medicine is not practicing science, so I can believe that there are some striking differences between the most up-to-date research and current medical practices, whether dental or otherwise. But fluoride cannot fill in enamel already lost, so.....there's that. http://www.nytimes.com/2011...
by p1t1o
Tue Apr 11, 2017 8:31 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 266
Views: 12956

Re: Science-based what-if questions

A house built out of solid gold has to be built in the shape of a giant Sphinx. Them's the rules.
by p1t1o
Mon Apr 10, 2017 9:08 am UTC
Forum: Science
Topic: Build a small electric shock device
Replies: 12
Views: 10488

Re: Build a small electric shock device

Hi, I want to build a colossal electric shock device, I have 240 yottavolts available between two Reissner–Nordström black holes, in a decaying orbit in my front yard. I'm not sure if I should use ac or do. I would place electrodes on either side of the dipole and connect them to the electric shock...
by p1t1o
Mon Apr 10, 2017 8:14 am UTC
Forum: Science
Topic: Tongue Cleaning Myth?
Replies: 14
Views: 566

Re: Tongue Cleaning Myth?

I don't understand how that paper is concluding that you should do both. It feels like they meant to evaluate the efficacy of only tongue cleaning, and then concluded that you still need to brush your teeth because tongue cleaning on its own doesn't do much, but they never said as much and seem to ...
by p1t1o
Fri Apr 07, 2017 12:12 pm UTC
Forum: Science
Topic: Build a small electric shock device
Replies: 12
Views: 10488

Re: Build a small electric shock device

Hi,
I'd like to build gigantic electric shock device, I've got several gigatons of particulate matter floating in the upper atmosphere at the moment.
Should I be wearing rubber gloves for this?
by p1t1o
Wed Apr 05, 2017 2:05 pm UTC
Forum: Science
Topic: Why are keratinized skin cell so hard to penetrate?
Replies: 1
Views: 216

Re: Why are keratinized skin cell so hard to penetrate?

I believe it is a physical effect. It is an effective barrier because the filaments are tough and tightly bundled together. A "protein" does not have to be a wet, digestible, nutrient-rich mass. "Protein" just means "made of amino acids" and in some combinations, they c...
by p1t1o
Wed Apr 05, 2017 9:37 am UTC
Forum: Science
Topic: Why haven't any animals evolved wheels?
Replies: 10
Views: 549

Re: Why haven't any animals evolved wheels?

Rolling locomotion for speed you say?

https://en.wikipedia.org/wiki/Wheel_spider

Not quite sure if it counts as a "wheel" but still...
by p1t1o
Thu Mar 30, 2017 8:56 am UTC
Forum: Science
Topic: Consequences of climate change
Replies: 18
Views: 833

Re: Consequences of climate change

So what Im hearing is: Changes in food production will cause severe economic problems and there is a significant risk of mass starvations - efforts to solve this will take years and will not prevent initial severe consequences. Changes in habitat will force mass migrations, with accompanying severe ...
by p1t1o
Wed Mar 29, 2017 11:34 am UTC
Forum: Science
Topic: Consequences of climate change
Replies: 18
Views: 833

Consequences of climate change

Help me out here: I want to be able to state the disadvantages of uncontrolled anthropogenic CO2 production. Im not here to debate whether or not it is happening. There are a LOT of sources saying this will happen, that will happen, this wont happen etc. but I have a hard time judging which ones are...
by p1t1o
Wed Mar 29, 2017 9:49 am UTC
Forum: Science
Topic: Storing Nuclear Waste on the Moon
Replies: 53
Views: 2610

Re: Storing Nuclear Waste on the Moon

I DARE you to name 1 place that does not contribute to the global ecosystem in someway. It may not be obvious and the effects may not be immediate, but doing anything anywhere on this planet affects everything everywhere else. This logic does not quite pan out, since naturally occuring radioactives...
by p1t1o
Tue Mar 28, 2017 8:19 am UTC
Forum: Science
Topic: Is terraforming Uranus and Neptune possible?
Replies: 19
Views: 803

Re: Is terraforming Uranus and Neptune possible?

gmalivuk wrote:Meh, wake me up when you have as many puns for Neptune.


We could strip Netune's moons for trace elements to help terraform the rocky husk.

Why wouldn't we use a moon belonging to one of the other planets?

Nep-o-tunism.



I tried ok.
by p1t1o
Tue Mar 28, 2017 8:14 am UTC
Forum: Science
Topic: Storing Nuclear Waste on the Moon
Replies: 53
Views: 2610

Re: Storing Nuclear Waste on the Moon

Lets also remember for a second that a significant amount of nuclear waste is produced by coal-fired power stations, and Im not sure about modern power stations or "clean coal" but most of it is ejected into the atmosphere apparently. A 1,000 MW coal-burning power plant could have an uncon...
by p1t1o
Thu Mar 23, 2017 2:08 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 266
Views: 12956

Re: Science-based what-if questions

In other words - A 9mm pistol would be useless targeting something on the other side of the world, and so would a relativistic weapon. At some point, putting more energy into your projectile *lowers* effectiveness as a weapon, just as much as if you put 3 pounds of C4 into your 9mm instead of a few ...
by p1t1o
Fri Mar 17, 2017 1:41 pm UTC
Forum: Science
Topic: Eternalism. Does it allow free will?
Replies: 16
Views: 729

Re: Eternalism. Does it allow free will?

Well there is nothing wrong with tensed verbs, but A-series descriptions are different from the "A-theory of time." Wikipedia does have an article on the B-theory , wherein it attempts to distinguish between the A-theory and presentism: The labels, A-theory and B-theory, are derived from ...
by p1t1o
Thu Mar 16, 2017 4:11 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 266
Views: 12956

Re: Planet's spin

Well when I look up today I see nothing, because the angular motion is too slow at night to see the stars move across my field of vision Stand for five minutes and things definitely move, if you stare at the night sky. (I think 8 minutes is enough for the trail end of Orion's Belt to get to where t...
by p1t1o
Thu Mar 16, 2017 12:46 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 266
Views: 12956

Re: Planet's spin

Ohhhh... but in that short while, if you stand on it surface, what do you see in the sky (aside from debris and stuff) Well when I look up today I see nothing, because the angular motion is too slow at night to see the stars move across my field of vision, and at day, well it all just blue sky. I p...
by p1t1o
Thu Mar 16, 2017 11:43 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 266
Views: 12956

Re: Planet's spin

Yeah, I was talking about that: take the earth current axis, spin it with the force perpendicular to the original spin, then take that new axis and doing the same thing. What would the view be like? And what are you saying earlier suddenly make me thought of a vector weapon... but that landed in SF...
by p1t1o
Thu Mar 16, 2017 9:16 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 266
Views: 12956

Re: Planet's spin

There can be more than one axis of rotation, it just takes an energy input to keep it going - left without external influence, the second axis would gradually disappear, and I presume the angular momentum would transfer to the major axis. The Earth, for example, "precesses" around an axis ...
by p1t1o
Wed Mar 15, 2017 2:42 pm UTC
Forum: Science
Topic: Eternalism. Does it allow free will?
Replies: 16
Views: 729

Re: Eternalism. Does it allow free will?

Shall we pause for a group viewing of "Arrival"?
by p1t1o
Tue Mar 14, 2017 12:15 pm UTC
Forum: Science
Topic: Free Will
Replies: 55
Views: 1894

Re: Free Will

Im clearly out of my depth here.

*goes away to ponder the nature of existence*
by p1t1o
Tue Mar 14, 2017 11:54 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 266
Views: 12956

Re: Load bearing

Brittle doesnt mean weak though.
by p1t1o
Tue Mar 14, 2017 10:39 am UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 266
Views: 12956

Re: Load bearing

The question does not appear to make sense.

You still want the bearing to hit the (top?) stick?

But have the force be "transmitted" to the ground without breaking the stick? (Assuming that the bearing has the energy to break the stick)

Use a stronger stick?

????
by p1t1o
Mon Mar 13, 2017 4:02 pm UTC
Forum: Science
Topic: Free Will
Replies: 55
Views: 1894

Re: Free Will

I dont mean to draw a comparison between "free will" and randomness. Only that there certainly cant be free will in a deterministic, non-random universe. So it could be said that: No randomness rules out free will. My point is, no, this cannot be concluded from the fact that complete dete...
by p1t1o
Mon Mar 13, 2017 1:44 pm UTC
Forum: Science
Topic: Free Will
Replies: 55
Views: 1894

Re: Free Will

I dont mean to draw a comparison between "free will" and randomness. Only that there certainly cant be free will in a deterministic, non-random universe. So it could be said that: No randomness rules out free will. Therefore, the presence of randomness, if it can be shown, to me says that ...
by p1t1o
Mon Mar 13, 2017 9:21 am UTC
Forum: Science
Topic: Free Will
Replies: 55
Views: 1894

Re: Free Will

As I said upthread, adding randomness doesn't get you free will. If nothing is random, there can be no free will, because everything is preordained from initial conditions. So randomness must at least "allow" free will, its a condition for its presence. Is there anything wrong with those ...
by p1t1o
Fri Mar 10, 2017 4:28 pm UTC
Forum: Science
Topic: Free Will
Replies: 55
Views: 1894

Re: Free Will

Is determinism/free will dependant on scale? I have to imagine that if I shoot a pool ball at another pool ball at the same angle and force (and umpteen other conditions) that the outcome must be the same each time. At a smaller (quantum) scale things are more probabilistic, but how does that effect...
by p1t1o
Fri Mar 10, 2017 4:10 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 266
Views: 12956

Re: Science-based what-if questions

And then someone overdesign it and it could pierce through neutron star as well. Considering its made of fantasy, all you would need to do is turn the knob to "neutron star" 8-) *** So I have a question - if you are orbiting a neutron star at say 1AU and look at it, what do you see? A dar...
by p1t1o
Fri Mar 10, 2017 2:54 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 266
Views: 12956

Re: Science-based what-if questions

I guess a tourist tour inside of the sun isn't anything of interest huh? The Starpiercer would be a preeeetty good orbital bombarment weapon though (or even planet-destroying) The starpiercer is capable of surviving within the core of a sun, surviving the gravity-fed plunge into it and capable of h...
by p1t1o
Fri Mar 10, 2017 2:37 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 266
Views: 12956

Re: Science-based what-if questions

...Yeah, guess so. That thing must at least be the size and weight of jupiter before it does anything noticable, and looking at it from inside probably blind your eye even with good protection. I does wonder about what kind of thing would you be able to see though (I originally thought this because...
by p1t1o
Fri Mar 10, 2017 2:26 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 266
Views: 12956

Re: Science-based what-if questions

So it's time for that indestrutium we have used in that sniper rifle-shaped booster huh? Even then (and probably someway to ultilize that megaton pressure and heat, and also someway to plunge through it fast), what would happen? What would happen? Nothing. Its like asking "What would happen if...
by p1t1o
Fri Mar 10, 2017 1:38 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 266
Views: 12956

Re: Science-based what-if questions

Passing through the centre of the sun would be like having megaton nuclear warheads detonating all over the skin of your ship, constantly (like millions of detonations per second). There is some data to suggest that for a few tens/hundreds of nanoseconds, conditions at the epicentre of a megaton-cla...
by p1t1o
Thu Mar 09, 2017 5:12 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 266
Views: 12956

Re: Science-based what-if questions

Give "AHEAD Ammunition" a google.
by p1t1o
Thu Mar 09, 2017 4:42 pm UTC
Forum: Science
Topic: Science-based what-if questions
Replies: 266
Views: 12956

Re: Science-based what-if questions

From "The Expanse", see the slot on the left side of the backpack? Pretty much spot-on, only ours is a couple orders of magnitude more capable, thats the antimatter advantage TM :) I dunno, I think even if you had this antimatter weapon, Bobbi Draper could still wreck your shit if she nee...

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