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>> No. 4418 Anonymous
13th June 2018
Wednesday 6:24 pm
4418 What are the waste products to this synthetic liquid fuel created from carb
Journal article here: https://www.cell.com/joule/fulltext/S2542-4351(18)30225-3

From what I understand, air is extracted from the atmosphere, the CO2 is separated and liquefied and turned into a fuel, to be used with hydrogen. This is supposedly, carbon neutral or "carbon-free energy". What are the waste products of using this as an energy source? Is it carbon neutral because no new carbon is being released into the atmosphere i.e. the only CO2 used is released back (net increase zero)?
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>> No. 4419 Anonymous
13th June 2018
Wednesday 9:09 pm
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The process is you take CO2 and crack it to form carbon monoxide, then you take hydrogen which is made from natural gas or from electrolysising water. The next part is called the Fischer–Tropsch process and we've been doing it industrially since the 1930s, you react the two together to make methanol which is the liquid fuel.

The downside is that you still need to put energy into it to get the fuel. So it's only carbon-neutral if you have a carbon-neutral energy source to put in. Recent developments have mainly focused on cheaper and more efficient ways to make the carbon monoxide.
>> No. 4420 Anonymous
19th June 2018
Tuesday 8:04 pm
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>>4419

Thanks. It appears combustion of methanol produces CO2 and water. Maybe they capture the produced CO2 afterwards?
>> No. 4421 Anonymous
19th June 2018
Tuesday 8:37 pm
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>>4420
Well, the CO2 that was released as a result of combusting the methane is the same CO2 that was captured from the air; when you burn wood the CO2 that is released was captured by the tree initially.

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>> No. 4408 Anonymous
28th May 2018
Monday 6:08 pm
4408 spacer
>set theory shows there are infinitely more problems than computer programs
>pick a problem at random, the chances there's a program to solve it is 0

So why are computers so useful in the real world? The problems in the real world can't be random.

Is the universe is made of computational elements?

Or is it just that our computers are good at solving physical problems because they're made of the parts of the physical universe themselves?

Maybe computers in a different universe with different physics would be useful for solving problems in that universe.
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>> No. 4413 Anonymous
28th May 2018
Monday 7:41 pm
4413 spacer
>>4412

Logically, what is a 'problem'? We can conceive of solving a problem as deciding whether a string belongs to a specified set of strings.

Solving the problem 'is 6 is even?' means deciding whether '6' belongs to the set {'0', '2', '4', '6', '8', ...}.

A computer program can be expressed as a string of text but not all strings are computer programs. So the set of all possible computer programs is smaller than the set of all possible strings.

By the power set rule, the set of all possible sets of strings is greater than the set of all possible strings.

Therefore, there are more problems than programs to solve them.

programs = strings

problems = sets of strings
>> No. 4414 Anonymous
28th May 2018
Monday 7:44 pm
4414 spacer
>>4409

They don't even solve very many problems. They only solve a handful of problems that turn out to be really fucking important.

If you want to be reductionist you could say they only solve one single problem, and that's the fact humans find maths hard.
>> No. 4415 Anonymous
28th May 2018
Monday 7:45 pm
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>>4413

Sure, but why should that matter? Is anyone expecting a computer to solve random, unspecified problems?
>> No. 4416 Anonymous
28th May 2018
Monday 8:06 pm
4416 spacer
>>4408

>So why are computers so useful in the real world? The problems in the real world can't be random.

That is like asking so why is a hammer so good at knocking nails in even if that type of nail was invented afterwards. The tool was designed for that purpose.

Up until recently we have used computers to solve a very specific set of problems that they have been designed specifically to solve (abstract maths and logic) things had to be broken down by someone who would explain things to the computer in the most basic of ways for really quite narrow use it is only that the work of hundreds of thousands of people has been colabrative that it seems like they are more than an input output box.

It has only really started getting a bit freaky since we developed evolutionary programing, but even a school boy understanding of dawinism should make it immediately apparent why that works not that that makes it's potential power less frightening.
>> No. 4417 Anonymous
28th May 2018
Monday 8:23 pm
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>>4413

https://en.wikipedia.org/wiki/Curry%E2%80%93Howard_correspondence

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>> No. 4291 Anonymous
28th November 2017
Tuesday 12:40 pm
4291 spacer
How did people 25,000 years ago know what fat women look like?

It seems people were pretty well-fed back then.
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>> No. 4332 Anonymous
30th November 2017
Thursday 11:03 pm
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>>4328

I understand it perfectly, but most obese people don't.
>> No. 4333 Anonymous
1st December 2017
Friday 1:04 am
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>>4331
Back a bit early from the SU aren't you m7?
>> No. 4334 Anonymous
1st December 2017
Friday 1:06 am
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>>4328

Why blame a made up sky fairy on genetic diversity

>It's perfectly possible for God to curse a woman

https://www.youtube.com/watch?v=7nIRJVmZ4K8
>> No. 4335 Anonymous
1st December 2017
Friday 1:10 am
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>>4333

Nah blud been growin a beard an listenin Stormzy
>> No. 4407 Anonymous
21st May 2018
Monday 11:06 pm
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>>4291
I'm getting a little sweaty under the old helmet here lads ooohhh ddddearrrr she's larger than average in my mind.

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>> No. 4337 Anonymous
2nd December 2017
Saturday 1:43 am
4337 spacer
Anybody listen to this podcast about periods? It's quite interesting.

http://kateclancy.com/
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>> No. 4338 Anonymous
2nd December 2017
Saturday 2:39 am
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>>4337
I don't like blood. I don't like biology. I definitely don't like human beings.
>> No. 4339 Anonymous
2nd December 2017
Saturday 7:11 am
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>>4338

The Emergent Hive AI makes itself known.
>> No. 4406 Anonymous
21st May 2018
Monday 11:04 pm
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>>4337
Not my scene, as a closet sexist.

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>> No. 4367 Anonymous
17th April 2018
Tuesday 1:17 am
4367 spacer

https://www.youtube.com/watch?v=yk6wbvNPZW0
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>> No. 4401 Anonymous
21st April 2018
Saturday 6:34 pm
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>>4400
* I do noW entirely block frames and I frames.

I reposted once already and I'm fucked if I'm going it again.

Post editing when? :P
>> No. 4402 Anonymous
21st April 2018
Saturday 8:31 pm
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>>4400
If I embed five videos it's 4.46 MB of network transfer. If I only load the thumbnails it's 138 kB. That's a 97% saving.
>> No. 4403 Anonymous
21st April 2018
Saturday 8:39 pm
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>>4402

Yes and that's great but you can you make those thumbnails not load at all for those of us with "Text Links Only" set in /o/ ?

You can probably do it with two lines of javascript.... if session.options[videoembedding] == thumnails {} else if session.options[videoembedding] == textony.....

Fuck it, I'll knock the code up for you myself when I get a spare minute.
>> No. 4404 Anonymous
21st April 2018
Saturday 9:17 pm
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>>4403
Don't. There's a reason I didn't couple these to /o/ and it's not because I can't write if statements. I may do so temporarily to keep you quiet.
>> No. 4405 Anonymous
22nd April 2018
Sunday 12:13 am
4405 spacer
>>4404
> I may do so temporarily to keep you quiet.

I'll sf u right now, last thing I wan't is to stress you out. Tell me though, is /o/ stuff in PHP and hidden from the javascript layer for security reasons?

In any case blockig I frames and only getting thumbnails is ok for now, it's like I browse in a VM with 2gb ram, I set /o/ to be text only and it still cunts all my ram. You can understand why that might irk a chap off.

Btw I've decided to restart my mirroring projecty of britfa, I won't reveal the domain until I buy it because it'll be ace.

Also this isn't site usurp mu beloved britfa... it's more like if marple falls off his motor bike we all migrate to my site within the week. Music can choose the mods (even green) but I draw the line at Black, histrionic fucking schizoid.

Anyway I just noticed there's a fucking mssive post in sheds were I should be posting this bollocks and no here.

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>> No. 4364 Anonymous
31st March 2018
Saturday 9:20 pm
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>> No. 4365 Anonymous
1st April 2018
Sunday 12:50 pm
4365 spacer
I love meaningless contextless graphs, thanks. Some pretty colours and shapes on there.
>> No. 4366 Anonymous
1st April 2018
Sunday 1:23 pm
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>>4365

The L0 group split off from the lineage leading to us about 300,000 years ago. For comparison, Neanderthals split off about 600,000 years ago.

San people are half as divergent as Neanderthals.

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>> No. 4363 Anonymous
29th March 2018
Thursday 1:11 pm
4363 spacer

https://www.youtube.com/watch?v=2NbuHt6Q4jY

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>> No. 4361 Anonymous
5th January 2018
Friday 11:25 am
4361 spacer

https://www.youtube.com/watch?v=79LciHWV4Qs
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>> No. 4362 Anonymous
5th January 2018
Friday 9:04 pm
4362 spacer
Seems a bit arbitrary to have that loopy bit dangling at the beginning there.

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>> No. 4341 Anonymous
12th December 2017
Tuesday 3:11 pm
4341 Huge object passing Earth 'could be alien spacecraft'
>A huge object passing by Earth could be an alien spacecraft, scientists have said.

>The bizarre cigar-shaped entity was previously thought to be an interstellar asteroid which had come from another part of the galaxy.

>But evidence has been mounting which has led experts to suggest it could actually be a sign of intelligent life.

>The object is hundreds of metres in length but only one tenth as wide which is highly unusual for a typical space rock, scientists have said.

https://www.standard.co.uk/news/uk/huge-object-passing-earth-could-be-alien-spacecraft-from-another-part-of-galaxy-say-scientists-a3716961.html
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>> No. 4356 Anonymous
14th December 2017
Thursday 10:06 pm
4356 spacer
>>4352
Kind-of annoys me that we're not in a position to catch it considering we might never, ever see one again. Imagine if it goes off and destroys someone's greenhouse and they trace it back to us.

At the very least we could stick some sort of monument on there considering it will reliably leave the solar system. Just in case.

>>4354
I suppose there is a lot in life that can be explained by the fact that we're live in the galactic equivalent of Little Chef.
>> No. 4357 Anonymous
14th December 2017
Thursday 10:54 pm
4357 spacer
Reminds me of this:


https://www.youtube.com/watch?v=ph_sR51KBi8
>> No. 4358 Anonymous
17th December 2017
Sunday 1:08 am
4358 spacer
>>4355
Exactly this - if they can fly for light years in tiny craft and deal with our atmosphere, it is all over all ready. They'll have worked out that we have the IQ of cows.
>> No. 4359 Anonymous
17th December 2017
Sunday 7:52 am
4359 spacer
>>4358
I look forward to being fed and milked.
>> No. 4360 Anonymous
17th December 2017
Sunday 8:06 am
4360 spacer

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436043604360


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>> No. 4336 Anonymous
1st December 2017
Friday 7:10 pm
4336 spacer
Looking for some good tutorials on category theory.

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>> No. 4282 Anonymous
13th October 2017
Friday 2:11 pm
4282 spacer
Have they actually published anything yet or is it just more clickbait? I've been out of uni for a while and haven't kept up with the literature.

https://qz.com/1000252/this-color-changing-tattoo-has-biosensors-that-track-your-glucose-and-sodium-levels/
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>> No. 4283 Anonymous
13th October 2017
Friday 4:18 pm
4283 spacer
https://sci-hub.io/https://dl.acm.org/citation.cfm?id=3123039
>> No. 4286 Anonymous
21st October 2017
Saturday 6:38 am
4286 spacer
>>4283
Thanks!

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>> No. 4261 Anonymous
16th September 2017
Saturday 8:59 pm
4261 Strong weed.
Has anyone tried this and can they attest to its strength? I wouldn't mind trying it for its intense psychoactive properties.

http://metro.co.uk/2017/09/16/super-strong-american-gorilla-glue-skunk-weed-is-selling-fast-on-uk-streets-6932913/
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>> No. 4277 Anonymous
17th September 2017
Sunday 1:07 pm
4277 spacer
>>4276 I was about to take the piss but this is a good read.

https://thejeansblog.com/denim-brand-history/the-history-of-diesel-jeans/
>> No. 4278 Anonymous
17th September 2017
Sunday 2:40 pm
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>>4273

>How did weed get so much better so quick?

The internet. It became much easier to learn how to run a hydroponic grow, buy the equipment and get quality seeds from the Dutch seedbanks. If your grow ran into problems, you could post photos of your sickly plants to the uk420 forums and get a fast and informed response. All of a sudden anyone could have a go at growing weed and stand a very good chance of success.

Homegrowers and small commercial growers proliferated wildly, undermining the market for imported hash and weed. The gangs who had imported cannabis either gave up and focused their efforts on class As, or started their own growing operations.

The crap Thai stick disappeared, but so did the good Lebanese hash, because the economies of scale of importing cannabis collapsed. Most of the resin products on the market today are domestically produced super-strength varieties - butane extracts, bubble hash etc.
>> No. 4279 Anonymous
17th September 2017
Sunday 2:53 pm
4279 spacer
>>4274
> Any idea on what the magic truffles are like?

"Truffles" are just the part of the mushroom that grows under the earth. Due to the Dutch being a bunch of massive autists a technicality of language only the above-ground bit of the mushroom was banned so people started selling the truffles instead. I had a 20g box of Tampanensis for my first go and had a cracking time, but if I were to do it again I'd start with 5g the first time, 10g the next and so on. Definitely don't go all macho bravado and eat a whole of box of "Dragon's Dynamite" or whatever the latest nuclear-grade truffles are though unless you want to spend six hours in hell (or you've got a of experience of this kind of thing).

Super sage for /A/ leaking into /lab/.
>> No. 4280 Anonymous
17th September 2017
Sunday 3:23 pm
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>>4278
>>Most of the resin products on the market today are domestically produced super-strength varieties - butane extracts, bubble hash etc.

Never been able to get the stuff but I suspect it's going to be expensive.
>> No. 4281 Anonymous
17th September 2017
Sunday 3:26 pm
4281 OP
>>4279
>>Super sage for /A/ leaking into /lab/.

Seemed like the most appropriate place. Tell purple I apologise.

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>> No. 4199 Anonymous
15th August 2017
Tuesday 10:19 pm
4199 spacer
What's the best loo roll? I'm sick of buying what looks like a fancy cushy one only to find it's mediocre at best.

Don't tell me wet wipes because I refuse to flush them or keep a bin full of shitty wet wipes in my toilet.
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>> No. 4251 Anonymous
19th August 2017
Saturday 9:41 pm
4251 spacer
>>4250
But you have to get a bin in which to keep shitty wipes because they're not flushable.
>> No. 4252 Anonymous
19th August 2017
Saturday 9:45 pm
4252 spacer
>>4251
I flush them and haven't had any problems.
>> No. 4253 Anonymous
19th August 2017
Saturday 9:47 pm
4253 spacer
>>4251

https://www.youtube.com/watch?v=_Xx8NKPuQS0

They're biodegradable and specifically flushable.
>> No. 4256 Anonymous
19th August 2017
Saturday 10:11 pm
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>>4253
Have you not bothered to read the thread?

This article goes into how INDA and EDANA flushability standards are bollocks and governments and sewage companies are fighting these trade associations in order to make stop them labelling these wet wipes as flushable when they aren't.

https://www.theatlantic.com/science/archive/2016/10/are-wet-wipes-wrecking-the-worlds-sewers/504098/
>> No. 4258 Anonymous
19th August 2017
Saturday 11:28 pm
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>>4253
Did you know that the dangers of smoking are vastly overstated?

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>> No. 4235 Anonymous
17th August 2017
Thursday 1:50 pm
4235 spacer
I bought some cheap PC speakers which are bit too bassy. Could I put in a capacitor to cut down the bass?
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>> No. 4236 Anonymous
17th August 2017
Thursday 2:31 pm
4236 spacer
no.
>> No. 4237 Anonymous
17th August 2017
Thursday 2:40 pm
4237 spacer
Or, at least, not well. Nothing to stop you doing the maths and trying it (you may well want a resistor or two, too) - but disappointment is likely. You may be better just sticking a sock in it. There's not an 'annoying bass boost button' somewhere subtle is there?

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