search results matching tag: chemistry

» channel: learn

go advanced with your query
Search took 0.000 seconds

    Videos (295)     Sift Talk (6)     Blogs (12)     Comments (516)   

We ❤️ The Periodic Table

BSR says...

What makes up atoms? Scientists? Imagination? Eve?

In chemistry, why does it seem as though explosions are the bait on the hook to reel in new fish?

Please keep your answer within the Fishing metaphor for easier comprehension and entertainment.

newtboy said:

Never trust an atom,
they make up everything.

John Oliver - Mike Pence

newtboy says...

Legal, yes. Culturally accepted, not so much, slavery always had cultural opposition by the non ruling class. Natural, WTF?! Show me an example of pure non human slavery (not harems, not parasites) and I'll discuss it.

Granted, I don't know exactly how they measured, but his gene expression is what they measured, not his pure DNA. This goes to my point, that environment determines how your DNA is expressed, so twin studies are flawed from the onset by thinking they begin identical, they don't. They don't even start with identical DNA, just close.

"Genes and the environment", but not pure gene study....at least not like people think. People think twins are carbon copies, so one can be a control to study effects of what they're studying. That's not quite right. Certainly they are useful in genetic studies, but not that way. From before birth, they diverge in how nearly identical DNA is expressed. They might be good for finding what genes/traits need closer scrutiny, but only with large samples.

Grounds for individuals to (privately) discriminate, perhaps, but not (public) businesses....at least not in America. Our national identity is a melting pot of cultures, intolerance for the different is antithetical to that idea.


Gender, nope, you can totally choose that now.
Race, many people change their racial identity...Rachael Dolizal comes to mind....as does the term "passing".
Ethnicity, people pass as ethnic groups they weren't born into, sometimes unknowingly, daily.....again, Dolizal springs to mind.

So, I'll argue that all you mentioned for all intents and purposes are today often the result of free will and not beyond the control of every individual, but a full grasp of brain chemistry and design and well understood methods to change them are well beyond our current knowledge, so their behaviors and actions are, in part, out of their control and not the result of free will but of brain construction.....now what?

Transparent Aluminum

newtboy says...

They did invent a new, amazing, transparent metallic compounded never seen before with properties that outperform natural and synthetic aluminum oxides, which until now were not fully transparent. Did you even watch the video?

As the inventors, they get to name it. Transparent aluminum is a good, descriptive name, imo. You can disagree, but if you insist it's not aluminum you'll be contradicted.

Do I call rust "iron" in normal conversation with non scientists, no.
In chemistry class, yes, it's oxidized iron, so "iron" is right.
Would I be silly enough to claim it's NOT iron, absolutely not.

Jinx said:

Aint nothing I like more on a hot day than a coool glass of liquid hydrogen.

AlON is fine. I guess my point was that transparent compounds of metals aren't exactly uncommon, and neither is compounds having quite different characteristics to the elements from which they are composed. So it just seems silly to act like they've invented some amazing transparent metal.

Do you call rust iron? "Look at this chassis, its COVERED in iron! It's practically all iron all the way through!"

New Rule: Distinction Deniers

newtboy says...

Asis Ansari denies anything untoward or intentionally disturbing.....as is admitted by his accuser that's trying to have him convicted in the court of public opinion and blackballed....over her regretting having had bad consensual sex.

A bad date isn't rape, bad consensual sex later regretted isn't rape, an argument isn't rape, no chemistry isn't rape, only rape is rape and your contention is that this doesn't matter, they are equally guilty and deserve equal scorn and hate?!? Being weird is the same as being a rapist?!? Jesus fucking Christ, I always thought you were rational. This position you're taking is not rational, and drives rational people away from the movement....and will destroy it before it has any effect.
Being weird is a good thing, just look at the "normal" person and tell me they're worth emulating.

Don't stop using your brain.

Does this go both ways? If a man has a bad date, or bad sex, can he accuse the woman of exaggerated disgusting behavior publicly by lumping her in with serious abusers to hurt her professionally and personally as revenge for his own inability to say "stop" or "no"?

I hope that girl you had a bad date with in high school doesn't come back to show you the error of your position by adding your name to the "me too" list, destroying your career, family life, and future with no recourse to prove your innocence...all because she didn't orgasm.....but I do hope you see the error.

BTW, the next time you're caught saying something disturbing to someone else, you need to remind them you aren't trying to murder them. Your position means if you upset someone, that's the same as the worst thing you could have done, torture murder. There is no distinction.

In fact, your post did upset me, you fucking child raping monster. That's not overboard at all according to you, and you are exactly the same as a serial chomo...until legal sentencing time. That is what you advocate.
Fuck. People have all lost their fucking minds over this issue.

ChaosEngine said:

Good points Bill.

Next time I'm breaking some dudes leg with a baseball bat, I'll be sure to remind him that he's not being murdered.

But hey, congrats on one thing. I was kinda unsure about Sam Bee's video until I saw this... now I'm 100% behind her.

So let me mansplain the fuck outta this.
Yes, rape is worse than groping.
No, no one gives a fuck about your opinion.
Yes, some drugs fuck you up more than others.
No, that analogy doesn't fucking apply here.

Honestly, the more I watch Maher, the more I'm convinced he's actually a fucking moron who, by sheer coincidence, happens to agree with some smart people on some things, but when left to his own devices, hasn't a fucking clue.

The senator is EXACTLY right. Right now, we don't need to have a conversation about the varying levels of how fucked up groping or harassment or rape is. If and when people are being sentenced to death and/or extreme prison terms, yeah, let's talk about proportionate response. Right now, let's just keep telling dudes (and be honest, it's mostly dudes) STOP BEING WEIRD, GROPEY OR RAPEY. It's just not fucking cool.

And if it takes "ruining someone's career" to do that... well, boo fucking hoo.

And as for the people claiming trial by media, I agree, that's fucked up. And when one of the accused people actually denies what they've done... I'll happily give them the benefit of the doubt.

How Not to Do Brownies

newtboy says...

So much wrong.

Reality is not subjective. That's insane. Your perception of reality is subjective, but only if you aren't careful.

(Redacted)

Mental defect doesn't mean mental illness. It means your brain chemistry might be abnormal and react abnormally to drugs. Parkinson's isn't considered mental illness for example.

This story was about him stupidly taking totally unknown drugs from unknown sources, why on earth are your panties in such a bunch because I stated the obvious, that this is not a normal marijuana overdose experience?

Pretty weak, bro.
(You've already been chastised for the silly name calling)

blastido_factor said:

Classic "I'm a pro drug guy" comments here. "I've never been that high so they must have been on some other drug". Guess what dumbass, everyone is different and reality is subjective. I've heard of many people having similar experiences on edible marijuana. Just because it didn't happen to YOU, does not mean it cannot be that way for others!! And how can you say "with confidence" about a situation you have no facts from? You can't. And to top it off you dismiss this person's experience by suggesting they could be mentally Ill. Pretty weak man.

Grosse Pointe Blank - Shooting Scene With Doom 2 Arcade

2 Drops Of Spilled Mercury Destroyed This Scientist's Brain

MilkmanDan says...

Another thing to keep in mind is that different forms of elements and chemicals have very different properties.

Pure elemental liquid mercury is pretty cool stuff. Lots of people (myself included) can remember playing with elemental mercury in their bare hands in chemistry classes, etc., and even that sort of cavalier use basically never resulted in cases of mercury poisoning.

In sheer statistical terms, I gather that it is relatively safe to have pure liquid mercury directly on your skin -- cupped in your hands, say -- for short to medium periods of time. Open wounds, even small ones, can make that significantly worse. Even ingesting elemental mercury generally doesn't result in too much absorption into the body, but it remains a terrible idea. Evaporation of elemental mercury even at room temperature can lead to inhalation of mercury vapor, which is drastically more dangerous. So, ventilation and environmental controls are quite important.

This organic mercury sounds like terribly nasty stuff, but fortunately people are very unlikely to be exposed to it outside of a lab or if you are a scientist who is intentionally synthesizing it.

I think it is kind of a shame that those high school chemistry type sessions of messing around with elemental mercury are pretty much gone today. On the other hand, even though the risks are lower with elemental mercury like that, the rewards aren't really all that high either. I have fun memories of messing around with the stuff, but it wasn't by any means necessary or important outside of pure academic curiosity. Better safe that sorry I guess, particularly when the extreme end of "sorry" results in horror stories like this.

What Makes John Bonham Such a Good Drummer?

glyphs says...

Holy crap, that's probably the same reason why I like early smashing pumpkins stuff so much. corgan and chamberlain were absolute virtuosos and getting your hands on a concert bootleg from before 2000 was an actual musical find. I got a few and those gigs were so diverse.
Anyone know of other bands with similar chemistry and ability?

A Surreal Look at Getting Around Buenos Aires

bremnet says...

Remarkable. The details of the shadows under the jockeys and the bike riders is incredible (I think?... as a physics and chemistry nerd, I have no idea how something like this is even done).

NYC's Best Burger, Explained

TheFreak says...

People only think they love their children but it's really just a trick of brain chemistry due to natural selection favoring those who care for their young. And still, I told my son to take the bus home from school because I wasn't finished cheddaring.

I have lots of hobbies and probably all of them are because my brain chemistry compels me in some way. Still, I'm experiencing new things and expanding my understanding of the world, instead of watching someone explain to me in great detail how everything I enjoy is meaningless. And I still even find time to tell my kids I love them. Even though, objectively, the love I feel is probably just a compulsion.

transmorpher said:

People only think they love cheese, just as opioid addicts think they love opioids.

This is coming from an ex-cheese connoisseur

https://youtu.be/h3c_D0s391Q?t=81

What We Know about Pot in 2017

PlayhousePals says...

Waving frantically ... 'I'm' the market!

The brand I smoke is made with organic tobacco ... no additives. In addition, the paper has no accelerants to keep the product burning on its own. However, the sin taxes over the years have raised the price per pack to hair raising levels, especially harsh now that I'm on a limited budget, buuuuuttttt [see what I did there?] ... I've always been a conscientious social pariah. I carry my own ashtray and only smoke outdoors [currently in our designated area] even when I owned my own home. For me it's been a stress reliever and a social outlet as it gets me out of the apartment. I'd be a hermit otherwise so I continue to justify the expense.

As for pot my favorite form is ingestion but, with the change in our state marijuana laws last year, I no longer have the option to obtain the products in sufficient dosage [and dependability] that I once was provided. I'm no Betty Crocker so the chemistry of producing accurate and effective efficiency is out of my wheelhouse [plus the process really stinks up the place]. So mostly I vaporize the flower from the most potent Indica money can buy with my PAX 2. No burning of vegetation like smoking.

That's my story and I'm stickin' to it!

MilkmanDan said:

If so, shouldn't there be a market for tobacco cigarettes without any added ingredients?

Jeff Goldblum's Secrets To Aging Gracefully

CrazyRussianHacker shows a simple way to make clear ice

Don't Breathe

SLJ900/32 Bridge Girder Erection Machine

Drachen_Jager says...

All I see is a shit-ton of workers without safety harnesses.

I wonder how many they lose in a year?

Not that anyone cares. I have a friend who helped set up some agro-chemical production factories in China. On a tour once, he saw workers handling the raw chemicals with no respirators or even gloves and commented on it. His guide shrugged and said if they died the company would find new workers. My friend (with a PhD in Chemistry) figured the average life-span for those workers would be about two years, given the toxicity of what they were handling.



Send this Article to a Friend



Separate multiple emails with a comma (,); limit 5 recipients






Your email has been sent successfully!

Manage this Video in Your Playlists

Beggar's Canyon