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War on Science by Lydia Secklefudge - Fri, 09 Oct 2015 16:05:35 EST ID:FfJ1Vebk No.77270 Ignore Report Reply Quick Reply
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Decent vid
A Wizard - Fri, 09 Oct 2015 18:34:44 EST ID:PtGx5SYm No.77271 Ignore Report Quick Reply
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I'm not clicking until I have some details...

One requested detail. Am I in it? Am I at least competently represented? xD
Hamilton Dandleway - Sat, 10 Oct 2015 09:05:40 EST ID:YhREOUdy No.77273 Ignore Report Quick Reply
Do you have unwavering faith in Al Gore when he says we need to buy into his carbon credit scheme or we're all gonna die? Or do you think it's all about money?

Science war.
A Wizard - Sat, 10 Oct 2015 13:11:08 EST ID:PtGx5SYm No.77275 Ignore Report Quick Reply

All about the money. The whole carbon issue is a bad joke. It's easy to strip carbon from the atmosphere and from the oceans, and the more we use carbon as a building material, the easier it will be.

It's also a political game. "too many" underdeveloped nations are playing catchup.
Doris Gegglemet - Wed, 14 Oct 2015 20:55:05 EST ID:dkMoIz4p No.77290 Ignore Report Quick Reply
It's focused on Canada.

Any of you guys have a ph meter or ph strips? by Nell Nobberpore - Tue, 29 Sep 2015 02:19:25 EST ID:+P3OcrX6 No.77208 Ignore Report Reply Quick Reply
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Can one of you guys test the ph of a glass of salt water using 1 cup (or 250ml) tap water and 1 tbsp (or 15ml) of common table salt (sodium chloride). All I can find is the ph of seawater which is much different. I know tap water will vary slightly but it's still better than going by seawater measurements. I ask because I damaged a tooth recently and I have no money for a cap or crown, so I have been rinsing/gargling with saltwater several times a day until I can afford the dentist visit to insure I don't wind up with an abscess from the pulp of the tooth being exposed. Using Listerine hurt like hell and I can't use it. I know salt water is very effective at controlling bacteria but this dentist claims salt water is acidic and will weaken teeth after prolonged use. Until I read that I thought it was neutral as long as the water it was mixed with was relatively pure and therefore perfectly safe for prolonged use as a mouth rinse.
4 posts omitted. Click Reply to view.
lil' shit !!vVWR8L52 - Sat, 03 Oct 2015 04:34:15 EST ID:+TLZHL9G No.77223 Ignore Report Quick Reply
saliva is alkaline to protect your teeth dude, wtf. nb

OP: I use neither altho I have both, but a solution works better and more precise IME.
Hedda Bebberstick - Sat, 03 Oct 2015 05:01:21 EST ID:+P3OcrX6 No.77224 Ignore Report Quick Reply
>altho I have both
Well that's good news, I was actually hoping to get someone to test for me, since I have neither. I have a feeling that dentist was full of shit and has no idea what he's talking about, but better safe than sorry I figure.
Bombastus !!HToBa9dh - Sat, 03 Oct 2015 18:18:49 EST ID:4ppVjZXo No.77228 Ignore Report Quick Reply
>this thread
if you use tap water, it's already slighly basic due to the hardness of your water. any salt you add will not change the pH by anything.

do this. it does not do anything to salt water's effectiveness. the salt's still there.

saliva is basic. close to 7 is correct. but it is also basic (4x more basic than regular water)

yes, he should be full of shit. unless YOUR specific tap water is just weird like that. sure, your dentist had to sit through a few years of chemistry. but i doubt he would've retained much if he literally thinks NaCl is acidic.
Phyllis Nobblewater - Wed, 07 Oct 2015 02:56:29 EST ID:PtGx5SYm No.77252 Ignore Report Quick Reply

Wait what? Really?! Dude... my saliva makes baking soda fizz... I have acidic saliva then? Should I go get this tested?
Hamilton Suttinghall - Wed, 07 Oct 2015 09:33:46 EST ID:+P3OcrX6 No.77254 Ignore Report Quick Reply
If you're being serious, then yeah. I would think your body ph would have to be pretty far out of whack for that to happen though.

Comparing analogs of amphetamines by Eliza Gattingchan - Mon, 05 Oct 2015 16:05:45 EST ID:6r/Z5LVk No.77241 Ignore Report Reply Quick Reply
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How hard would it be to test between 2-Fluoroamphetamine (for example) & Lisdexamfetamine ("Vyvanse", for another example)? What kind of tests would be used to compare the two and analyse the different compounds? Im pretty sure it would be simple enough to find they're both analogs of amphetamine, but how hard would it be to find out the specific makeup of the chemical?

Thanks in advance. **ALSO**: Any amazing answers backed by legitimate sources or some sort of proof of credentials, will receive a BTC tip if they decide they want it. If not ill donate to charity and post proof of donation status.

Physics by Phoebe Hurringnug - Wed, 30 Sep 2015 15:30:29 EST ID:pU3iIw+1 No.77210 Ignore Report Reply Quick Reply
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Okay, so I understand that when jumping off of a building it isn't the fall that kills you, but the sudden deceleration or stop that actually does the damage to hurt you.

A car hitting someone is the exact opposite. But, what actually kills you when you get hit by something moving at a high speed?

Assuming the point of contact isn't small enough for the projectile to plow straight through you.

Can somebody please explain this to me
1 posts and 1 images omitted. Click Reply to view.
Basil Pockway - Thu, 01 Oct 2015 20:10:20 EST ID:6VB+GVPW No.77213 Ignore Report Quick Reply
Since you want a physics answer: plasticity.
The force applied by the impact exceeds the elastic limits of bodily tissues. The tissues no longer operate sufficiently to continue life. You die.
Whitey Mashpet - Thu, 01 Oct 2015 20:36:28 EST ID:dkMoIz4p No.77214 Ignore Report Quick Reply
Newtons third law: for every reaction there is an opposite and equal reaction. Your body can't handle that much force and thus you die. Is the answer you where looking for?
William Munderkedge - Sun, 04 Oct 2015 11:49:35 EST ID:cIUKn2oY No.77232 Ignore Report Quick Reply
>A car hitting someone is the exact opposite.

It's in fact the exact same scenario. If you change the frame of reference from the person to the car, it's the person(and the rest of the universe) that's moving.
Martha Pisslespear - Mon, 05 Oct 2015 14:31:19 EST ID:pU3iIw+1 No.77239 Ignore Report Quick Reply
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Thanks man
Martha Pisslespear - Mon, 05 Oct 2015 14:35:17 EST ID:pU3iIw+1 No.77240 Ignore Report Quick Reply

Well, I guess what I was looking for was this

When you fall and hit the floor, your body suddenly stops. Causing everything to violently slam against the ground from the points of contact all the way through your body. Say you fall on your face/chest. Your back is going to slam forward and pancake into your rupturing body.

This guy here


Just made my mind moving. If a car hits you, you suddenly accelerate into a point of contact. Violently. Your chest would be compressed into your back, slamming tissues together and causing internal and possibly external rupturing.

TEACH: SCIENCE by Fucking Pesslefield - Sun, 27 Sep 2015 16:21:54 EST ID:LLrpzRn5 No.77206 Ignore Report Reply Quick Reply
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LANOLIN UNTO WOOL by Lydia Dommleshaw - Tue, 22 Sep 2015 15:48:07 EST ID:zkWZUxAO No.77190 Ignore Report Reply Quick Reply
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I bought a kick-ass wool sweater. It is itchy and I want to make it water repellant.
That is why I want to put the lanolin(wool fat) back on it that is removed in wool processing.
Now here is my problem. I don't want to smear it on it but deposit it evenly.
I already have lanolin and now I have two approaches.

1) Dissolve lanolin in volatile nonpolar solvent, stick in shirt, let solvent evaporate.
  • This will probably fuck up the colors
  • Is expensive.

2) Make lanolin/water emulsion by adding for example lecithin to it. Stick in shirt.
  • What the hell does lecithin do to clothes?

Any other ideas?
Phyllis Pattingwell - Wed, 23 Sep 2015 16:32:38 EST ID:cM6rhCgJ No.77191 Ignore Report Quick Reply

Lecithin is an emulsifier with a permanent polar charge associated with it. If you use a lecithin/grease emulsion to coat your wool, the lecithin will be embedded with the lanolin. When water makes contact with the dry lecithin, the lecithin will eventually go back into solution and may remove some grease along with it.

You might try coating the shirt, drying it, washing it in water, and then recoating, drying, washing, until you get the desired waterproofing. The water should remove any active lecithin, and will likely remove some grease associated with lecithin during each wash.

The nonpolar solvent will likely damage the color since most dyed shirts are meant to be washed with soap and water.

You could always try a test patch with the solvent and see how that goes.
A Wizard - Wed, 23 Sep 2015 20:36:58 EST ID:eg2eHljf No.77192 Ignore Report Quick Reply

You are really over doing this. Just wash it with fucking hair conditioner.

Also, wool will never be water repellent unless it has a very tight weave to it. That said, wet wool is still a great insulator.

THE THING by Archie Dasslestire - Wed, 15 Apr 2015 21:08:28 EST ID:9FLQiANc No.76395 Ignore Report Reply Quick Reply
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Where can I find big grates like this? Preferably with tiny rather than larger holes.

I need it for SCIENCE.

I'll let you guess what I'm making.
7 posts and 1 images omitted. Click Reply to view.
Ebenezer Dezzledit - Fri, 29 May 2015 00:57:24 EST ID:9FLQiANc No.76615 Ignore Report Quick Reply





trypto - Fri, 29 May 2015 18:26:12 EST ID:xYeF8coT No.76616 Ignore Report Quick Reply
Is for a case of some kind?
Green Fox - Fri, 29 May 2015 19:03:26 EST ID:0YyKnwjY No.76617 Ignore Report Quick Reply
Some sort of extruder or seive. Possibly an electrode but since you don't care about the material probably not. Faraday cage?
Phoebe Nicklewell - Sat, 30 May 2015 01:42:52 EST ID:xYeF8coT No.76619 Ignore Report Quick Reply
A dehydrator?
Shit Tootcocke - Sun, 13 Sep 2015 23:31:40 EST ID:aeJP3V4O No.77162 Ignore Report Quick Reply
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>Faraday cage?

Ladies and gentlemen we have a winner!

Your prize is this

I am so sorry

Looking for a site I forgot by 3am !/sly9iFJgg - Tue, 04 Aug 2015 09:33:32 EST ID:9h2+e35x No.76872 Ignore Report Reply Quick Reply
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Was trying to remember an awesome home mad science forum I found a while ago, whose name totally eludes me now. All I remember was that its forum "ranks" were something like "international threat" "threat to self" "national threat" etc, and that doesn't exactly give me great results on Google nor keep me out of the NSA database. Also, its landing page had an alchemist-style seal on a white background.

Please help this weary traveler of the cosmos!

(Picture: Adamantane crystals, essentially a diamondlike type of hydrocarbon discovered in oil)
3am !/sly9iFJgg - Tue, 04 Aug 2015 12:25:17 EST ID:9h2+e35x No.76876 Ignore Report Quick Reply
Nevermind, I found it again
Fuck Lightdale - Fri, 11 Sep 2015 06:12:04 EST ID:PNYSyLXb No.77146 Ignore Report Quick Reply
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Nice board, thanks for the link my fellow traveler!
CrazyFolksTribe !owU3wSU682 - Sun, 13 Sep 2015 00:34:04 EST ID:AHbrzbaQ No.77158 Ignore Report Quick Reply
Bump because adamantane is our friend and the backbone of the wonderful drug memantine.

effect of bioactive precursors in tobacco by Martha Huzzlebot - Mon, 31 Aug 2015 17:28:07 EST ID:hC+7bLwP No.77093 Ignore Report Reply Quick Reply
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Hello fellow /chem/ists, i have a few questions for any biochemists around here, So firstly, if one would ''suplement''( I.e. N. Tabacum) with amino acids that are directly involved in the biosynthetic process(i.e. DL-apartic acid, L-ornithine,-as far as i know these are the only ones), would the nicotine conetent rise as a result?
Also would the same process work with precursors further down the line(like nicotinic acid-seeing as it's NAD-dependant, and say 4-methylaminobutanal)?
Also, do plants even incorporate these substances in the manner i want to use them in?
Any help or imput is greatly apreciated! and thanks in advance!!
9 posts omitted. Click Reply to view.
Hedda Sezzlebork - Fri, 04 Sep 2015 05:13:28 EST ID:hC+7bLwP No.77120 Ignore Report Quick Reply
Goes without saying!
I have already outlined the hypothesis (well, several actually) and the medium i will be using will be standard soil (30%) and perliter(70%) the Ph will be balanced wih LIme and citric acid when necessary, and kept at 6.0-7.0
Shit Pinnerville - Tue, 08 Sep 2015 16:02:23 EST ID:hC+7bLwP No.77129 Ignore Report Quick Reply
OP here, does anyone have anysuggestions on how i should mesure the nicotine content of the leafes GCMS perhaps?
A Wizard - Wed, 09 Sep 2015 01:42:55 EST ID:eg2eHljf No.77134 Ignore Report Quick Reply

The most sophisticated hobo you can find?
Jarvis Hunningteck - Wed, 09 Sep 2015 13:26:28 EST ID:hC+7bLwP No.77136 Ignore Report Quick Reply
''well the bum down the street said he hasn't had a cig like that sience vietnam, so hypotheisis confirmed!''
A Wizard - Wed, 09 Sep 2015 21:38:34 EST ID:eg2eHljf No.77141 Ignore Report Quick Reply

xD Alchemy!

Considering grad school by Cornelius Wosslestack - Sat, 29 Aug 2015 02:41:37 EST ID:A/ZPVECK No.77050 Ignore Report Reply Quick Reply
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So I'm considering getting a master's in chem. I have always enjoyed chemistry, but I majored in liberal arts. That being said I recall a fair amount about it from taking AP chem in high school.

In any case, I'd mainly like to focus on materials science because I have some experience with machining and fabrication. I'm also thinking I'd end up in education, because I like teaching and that seems like a solid way to go in terms of job security and salary.

Really I'm just looking for advice here. I love chemistry, but I'm pretty damn rusty and I have no real college experience - AP chem in high school is generally a lot easier than an actual college course.

First steps? Things to consider when looking at programs? Any and all tips or advice would be appreciated.
4 posts and 1 images omitted. Click Reply to view.
Vehk !7HYGxe5v5c - Mon, 31 Aug 2015 14:51:54 EST ID:9sH3Ao2e No.77091 Ignore Report Quick Reply

I'm an undergrad Biochem student in southern Ireland. We have two main pharmaceutical hubs here, one in Dublin and one in Cork. The pay is slightly higher in general in Cork. Employment is plentiful as there are many different companies and they are frequently hiring (in fact, something like 20% of the lab technicians at a Pfizer lab I interned at didn't even have a B,sc. Although most of these people are dinosaurs who started working before hiring was standardized).

As a lab technician, you are looking at 30 - 35k starting, which is 40k dollars. If you manage to get a full QC position (helpful if you have your degree in or are spec'd in analytical chemistry) you could see that pushing 40k euro, though the work is quite banal and repetitive. Other facilities do biotech rather than organic synthesis and these would be a bit more stimulating. These places are harder to get hired in though, it's the Pharm-Org-Analytical jobs that are plentiful. If you are good there is also plenty of room for upward mobility in QC/QA labs.

By the way, why are you getting a master's instead of a Ph,D? Most research fellowships (these often pay quite nicely) require Ph,D minimum, and it's also what you need to get a job in basic research in industry.

As I was saying, the market is very comfy here, but work experience is kind of important - most of our colleges here do placements to pad CVs. If you want to work/live in Ireland, it is possible to get dual-citizenship if you have Irish ancestry and are an American citizen.

Personally I am doing this course as a pre-med to become eligible for graduate entry to Medicine, but it is very reassuring to know I can always fall back to industry if my aspirations in Medicine or Research don't work out.
Edward Pecklewill - Tue, 01 Sep 2015 22:26:08 EST ID:uGD5aNS6 No.77102 Ignore Report Quick Reply
>If you want to work/live in Ireland, it is possible to get dual-citizenship if you have Irish ancestry and are an American citizen.
Huh. Do you know anything about Ireland's biomedical research? I wanted to do a post doc abroad, was considering centeral Europe/Germany if I can find a position. Never really considered Ireland, even though by ancestery I am primarily Irish.
Vehk !7HYGxe5v5c - Wed, 02 Sep 2015 13:05:09 EST ID:ILVV3idO No.77105 Ignore Report Quick Reply
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Ireland has a strong history of medical and pharmaceutical research, particularly in oncology. It mostly centers around the main national universities.
David Honeybury - Tue, 08 Sep 2015 18:40:45 EST ID:dkMoIz4p No.77130 Ignore Report Quick Reply
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I mean you could take some more classes. College chemistry is nothing like high school though. Basically you've taken at most two semesters of college chemistry. You'll basically have another degree.
I think to be a high school/ junior high teacher you could get by with maybe about gen chem (2) + o chem (2) + p chem (1-2) + inorganic + quantitative analysis + math + physics (2). This is only the minimum possible requirements of course (I'm sure most colleges will require much more). So, not to dissuade you but, there would be quite a few classes that you would need to take first even for a bachelors degree. On the plus side, you'll have all of you're generally classes covered.

As far as master programs go, you're adviser will end up mattering a lot more than the college will. Choosing a good adviser who is well known in the field and is easy to get along is what you're looking for.

Anyway, worth pointing out that chemical engineers have good job prospects and will probably end up taking quite a few of the same courses.
A Wizard - Wed, 09 Sep 2015 01:41:46 EST ID:eg2eHljf No.77133 Ignore Report Quick Reply

What? That's not how you pick your master. You find a complete asshole who knows his shit and hates his students, and you make that motherfucker laugh every damned moment you get the chance, except the times he's trying to focus.

The reward is that he teaches you, at the expense of the annoying dipshits you compete with. He'll probably even show you things he shouldn't too, just in hopes you use it.

glass water sound [rough musical scale] by David Lightshaw - Tue, 08 Sep 2015 07:49:21 EST ID:JegeNmRk No.77127 Ignore Report Reply Quick Reply
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entry-level by Walter Billingman - Sun, 30 Aug 2015 15:38:00 EST ID:005courH No.77074 Ignore Report Reply Quick Reply
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looking for high school tier physics books, what should i get?
Phineas Sundlewill - Mon, 31 Aug 2015 13:36:05 EST ID:GB64LehD No.77088 Ignore Report Quick Reply
khan academy is all you need
Books they give you in schools are shit

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