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Could using fiber optics internally for personal PCs ever be practical or even feasible?
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>>8661168
>personal PCs
You mean personal PC computers.
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>>8661168
Electric fields move faster in copper than light in fiber optics.
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>>8661289
lold. nice
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Why won't this work, /sci/?
>Submerge air-filled vessel attached to tether
>allow it to ascend towards the surface of the water
>after breaching the surface, fill with water and let sink
>Use siphon to drain water inside
>let it ascend again
>tether generates power as vessel ascends
15 Posts / 2 Images
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Draining the water when its at the bottom will use more energy than it would generate floating to the top.
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>>8661149
You mean refilling it with air at the bottom will cost more energy.
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>>8661149
So a siphon wouldn't work?
Anonymous
John Bates Climate Whistleblower 2017-02-09 12:22:09 Post No.8661123
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John Bates Climate Whistleblower 2017-02-09 12:22:09 Post No.8661123
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John Bates Climate Whistleblower
Anonymous
2017-02-09 12:22:09
Post No. 8661123
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http://www.dailymail.co.uk/sciencetech/article-4192182/World-leaders-duped-manipulated-global-warming-data.html
Can we have a rational discussion about this article? The deniers are running wild with it saying it proves that global warming is false. But I don't think they understood what Bates was trying to say, they just manipulated his words to fit their narrative. I think he was upset (rightfully so IMO) that scientific protocol within NOAA wasn't followed, but I don't think he was debating anthropogenic climate change. I found one blog saying he didn't even think the data was manipulated, but was upset that the "pausebuster" paper didn't indicate its data was experimental, meaning it hadn't been run though various software and some other stuff.
I can't find any comment from NOAA or Bates or Karl about the incident, and just a few second hand articles trying to debunk the DailyMail story. I also consider the hundreds of other studies completed that were independent of the "pausebuster" paper, but reaches similar conclusions regarding anthropogenic climate change. I think the deniers forgot about all that too.
Finally, I read a study that came out in 2014 that had nothing to do with adjusting data to disprove the hiatus. It was a paper by climatologist Kevin Trenberth, and he attributed it to the negative phase of the Pacific Decadal Oscillation. He did not try to adjust the data to make the pause go away, but explained that excess heat was being stored in the equatorial Pacific ocean, leading to the hiatus in the data. Wouldn't that reasoning compared against "adjusting the data because of the ships" be at odds against each other? Meaning, one researcher accepted the "pause" data and attributed it to a climate mode, while another researcher adjusted data to make the pause go away.
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>>8661123
>dailymail
>rational
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>>8661123
I will ensure that no rational discussion takes place in this thread. Believe me.
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>>8661128
https://en.wikipedia.org/wiki/Ad_hominem
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What's the most versatile engineering field?
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>>8660978
mechanical or electrical by far, depending on what you actually want to do. the rest are really specific degrees
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>>8660995
fpbp, /thread, etc.
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what are the most interesting engineering fields
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What's the difference between computer science and computer engineering?
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>>8660914
One makes your cock hard, the other one makes you take a hard cock.
Chose the one which naturally makes your cock hard, if you do the other than you will have to take a big hard cock up your ass.
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>>8661130
Comp sci basically gives you everything and drills you on theory. Comp eng makes you do everything yourself and didn't expect as much theory.
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I've actually done both. CS is largely dumbed down as a lot of normies flocked to it cause muh silicon valley money.
CompE focuses on a lot of electrical engineering concepts and lower level languages/HDLs, and the cost analysis of computer hardware components
Basically a computer engineer can do everything a computer scientist can do and more.
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Science has finally solved what causes trolls to troll
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>>8660843
stanford is such a normie school
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>filename
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That's actually a fairly interesting field of research. I wonder if it will get reproduced
Anonymous
Using earth as power source 2017-02-08 10:13:38 Post No.8660806
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Using earth as power source 2017-02-08 10:13:38 Post No.8660806
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Using earth as power source
Anonymous
2017-02-08 10:13:38
Post No. 8660806
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using the earths magnetic field to produce energy
the earth is basicly a spining magnet
so could we put a huge coil in space around earth
I have done the math
P=2,16*10^22*2*π
P=1,57079637*10^18 (W)
==>output 1,5 Quadrillion kw
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http://www.nature.com/articles/srep37740
>Heat from the earth's core is generated from nuclear fusion. The earth is a giant nuclear reactor.
>Earth is a giant spinning magnet
>Sun is giant nuclear reactor
>Ionosphere is a literal electricity producing machine
If there's energy all around us, why is it so hard to tap into?
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the cables would have to be 771meters thick at same voltage ampere ratio
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>>8660816
I think you can find answers to your question here
https://www.youtube.com/watch?v=_-agl0pOQfs
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>it's a 'proff takes entire lecture on one proof' lecture
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> when you're 20 minutes into a proof and forget what you were trying to prove in the first place
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>when the prof makes up new notation and redefines it halfway through the proof
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>>8660596
>professor defines notation
>never uses it
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Who /nootropics/ here ?
>2017
>not taking smart pills to increase his brain power
That's as if when the bike was invented a guy said "naah, it looks cool, I could go faster but I'd rather use my feet. Progress is evil"
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>>8660520
I just drink coffee
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i take real drugs, op. amphetamines power my stem degree
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>>8660523
Alright that's fine too if you like the taste
You can get caffeine from pills though for way cheaper
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Graphene batteries when?
Seriously i'm sick of my phone's shitty battery life
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tomorrow
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>>8660555
Maybe your issue is your addiction to cell phone. Ever read iDisorder, civility books?
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>>8660507
I'd much rather have good graphene super capacitors.
Also, just get a crank generator for your phone. You can even build one, they are very simple.
http://www.smithsonianmag.com/science-nature/vast-geological-challenges-building-border-wall-180962072
thoughts on this?
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Since when did challenges stop America? Also Saudi Arabia built a wall in the border with Iraq in the middle of the desert.
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>>8660615
plenty of times?
the issue isn't building it, it's doing it on time and on budget, and not having it fall down quickly
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>>8660615
Also keep in mind that the Saudi Arabian "wall" is actually a glorified fence with a sand embankment in front of it. Not the same thing
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>tfw to smart to even bother figuring out P = NP
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>>8660380
>tfw to smart to have sex and pass on my genes
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>>8660387
>tfw 2smart to pass exams
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>tfw to smart to have friends
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What is a 'part' and why is the definition for point the only place in the entirety of The Elements that mentions it?
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because euclid's elements is shit
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>>8660432
No it isn't.
t.Someone reading ancient geometrical works
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>>8660375
Point is that which has no part.
To begin with, Euclid needed a fundamental unit of the plane: the point. And a fundamental unit has to have no part, because otherwise wouldn't be a fundamental unit but a derived / composed one.
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Daily reminder that ELF to upper microwave band radiation interacts with the voltage sensing sub-unit of voltage gated calcium channels, leading to chronically elevated intracelluar calcium, overactivity of Ca2+ regulated machinery and processes, and ultimately increased NO synthesis that cannot be properly processed through standard channels and thus in the presence of superoxide forms peroxynitrite. Ignoring the high level signalling and regulatory functions of VGCCs (such as neurotransmitter release in the CNS, as well as synapse and dendritic spine maintenance / formation), this is the low level mechanism leading to oxidative and nitrosative stress, and subsequent DNA damage and deleterious effects on other cellular structures. This entire chain of effects is completely eliminated by VGCC blockers both in cultured cell lines, and in vivo. The influx of extracellular calcium is also immediate upon exposure, <5s, further suggesting that microwaves are indeed acting on the charge groups comprising the VGCC's voltage sensor. Given their location in the plasma membrane and what we know about the physics of pulsed fields, this is the most plausible.
In summary, Wi-Fi and cellular phones are making you infertile and raising the probability of issues in your offspring, raising your risk of various cancers, giving rise to widespread psychiatric issues, and bluntly giving you brain damage outright. Rates of autism will continue to rise along with spontaneous abortion and other causes of infant mortality, and complex society will likely crumble as people succumb to early onset Alzheimer and dementia. What follows is an inability to naturally produce viable offspring. Say nothing of broader ecological collapse from the death of other organisms.
Have fun. This is the future we chose.
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>>8660250
Sauce.
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>>8660250
thanks brainlet
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Why are testosterone levels so low today. In the past, everyone had 10 times the testosterone levels, being alpha males that would put Arnold to shame. What the hell happened?
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>>8660122
less physical activity
masculinity is seen as toxic
muh equality
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>>8660122
>hard times make strong men
>strong men bring good times
>good times make weak men
>weak me bring hard times
we are currently between stage 3 and 4
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>>8660122
>In the past, everyone had 10 times the testosterone levels
you're gonna have to provide a source for a claim of such magnitude