Chemistry lesson.

Jan 27, 2015 20:26

Don't put your fingers in H2SO4 and leave them there.

Jan 27, 2015 20:26

Feel free to add to the list guys. It's a fun game for all the family.

Jan 27, 2015 20:28

You can take the iron out of cornflakes with a magnet.

Jan 27, 2015 20:29

Don't do drugs!

That should take away a wide array of chemicals

Jan 27, 2015 20:29

You can say "acetone" like "ass tone" or "arse tone" for hilarous hi-jinks around the campfire.

But don't pour it on the campfire.

Jan 27, 2015 20:31

Funily enough, a lot of the dangerous ones aren't drug-like at all. They're just nice and toxic. But then how you define a drug is a bit hit and miss anyway. Things can act like drugs in certain amounts or poisons or bla bla bla.

Just don't take chemicals at all to be safe!!! that includes drinking water and breathing air.

Jan 27, 2015 20:34

Drinking water + breathing air = hiccups. And if you have hiccups for ages, you can die. True story.

Jan 27, 2015 20:35

You can find out how cold your freezer is by timing how long it takes to freeze various known ratios of alcohol: water and then plotting a nice graph.

Or you could just use a thermometer

Jan 27, 2015 20:35

that's good science John!

Jan 27, 2015 20:43

Honestly, I suck at science. In high school I had to make tooth paste in chemistry class. It had too much air in it, so it basically dissolved or something.

The big fire that tore down three classrooms was fun though (just kidding).

Jan 27, 2015 20:44

I remember high school chemistry was crap. That's about it. I never got the point of it back then.

Jan 27, 2015 20:46

In fact the whole point of most stuff at school went over my head I liked Physics and Art... and umm...

it was just a social event, really!

Jan 27, 2015 20:47

I'm better off being creative. Much safer for my environment haha.

Or carpenting and painting.

Jan 27, 2015 20:54

You can be creative with chemicals?

it's just mostly a lot more boring yet potentially a lot more dangerous at the same time.

Bit of an oxymoron really.

Jan 27, 2015 21:05

Oh oh oh, I know another chemical tip!

Never mix cleaning products, people! They can entoxicate you.

Deleted User

Jan 27, 2015 21:16

If you pour a handful of salt into a full glass of water, the water level will actually go down rather than overflowing the glass.

Jan 27, 2015 21:30

And more magic is if you pour a litre of ethanol in to a litre of water, the final volume won't be 2 litres. Dun dun dunnn!

Lexi_poo

Jan 27, 2015 21:35

This surely is not entertaining any of you, i refuse to believe that it is....

Deleted User

Jan 27, 2015 21:36

I really wanna try that now Tuco!

Jan 27, 2015 21:37

It's entertaining me and that's all that matters.

Lexi_poo

Jan 27, 2015 21:37

I don't believe it is even entertaining you.

Jan 27, 2015 21:38

Ok then.

Jan 27, 2015 21:39

CopperNanotube.

Deleted User

Jan 27, 2015 21:40

So, someone creates a normal thread, where no one is arguing and Lexi complains. Haha no winning with some people.

Interesting fact...water itself isn't really a good conductor of electricity, but it's the impurities in the water which turns water into a conductor of electricity

Jan 27, 2015 21:43

I like that fact. I sorta forgot that. But let's not talk about some random stuff that may be of interest to a handful of people, let's f**king argue about bollocks!!

Deleted User

Jan 27, 2015 21:49

What's the difference...

If there's a sound, but no one to hear it, is it still a sound or is a woman still right, if there's no one to hear it?

Ponder carefully

Jan 27, 2015 21:52

I don't think sound needs a living creature's interpretation of it to be sound. But it depends on what the woman said. Cos women are always right, right?

Deleted User

Jan 27, 2015 21:54

Hahaha that's such a neutral answer.

Yeah, just because there's no one to hear it, doesn't mean there isn't sound

unless you're in an anechoic chamber...then you can't hear s**t

Jan 27, 2015 21:56

Did I miss something about a particular woman saying something...?

I've heard you can't stay in those chambers for too long because they send you a bit loopy

or you start hearing your own blood sloshing around in your veins and stuff. f**k that! That'd freak me out.

Deleted User

Jan 27, 2015 21:58

Haha, I'm not getting involved it's a question, no one specific in mind and that's the honest answer haha

Yeah, you can hear your heart beating and the blood flowing through your veins...

There's record for someone staying for about 2 hours in that room, but yeah in general it sends people loopy

Jan 27, 2015 22:00

Can you imagine trying your hardest to scream and make a noise and it's so quiet and eerie... have you been in one?!

It'd be like one of those nightmares where you try to scream and nothing comes out!

Deleted User

Jan 27, 2015 22:03

Nah, but I had to study how they work while doing my dissertation a few years back.

They're actually built to show -dB that's why no one can hear a thing in them.

Jan 27, 2015 22:05

How is that even possible to have negative decibels?

Is a normal meter set to zero against "normal" background silence which isn't actually truly silent or something.

Deleted User

Jan 27, 2015 22:07

a standard room, with just a person in it, saying nothing and just breathing shows quite a right decibel level.

I think an air conditioned room operates at something like 60 odd dB...

that's pretty loud when you think about it.

Deleted User

Jan 27, 2015 22:09

high not right.

Jan 27, 2015 22:10

so much background noise you don't even realise... until it's GONE in the chamber and you start to go a bit mad.

I think my broken laptop fan operates at about 600 dB

Deleted User

Jan 27, 2015 22:13

Hahaha, yeah I think a Jumbo Jet taking off operates at 120+ dB

Yeah, that's the thing, there's so much background noise no one knows it. That's why people go stir crazy when it's suddenly quieter than they're used to.

Jan 27, 2015 22:24

I think I would go crazy if I have to stay for a period in a busy city. Where I live is pretty much quiet.

Ahhhhh, the peace and silence...

Deleted User

Jan 27, 2015 22:35

Just had to google some information I wasn't sure about anymore.

typical anechoic chamber has dB levels of 10-20, which is pretty bloody low.

The best anechoic chambers has a dB level of -9.4dB

that's mental

Deleted User

Jan 28, 2015 12:14

Don't drink alcohol while driving.

Don't drink alcohol while on the job.

Don't get caught by the cops.

Jan 29, 2015 19:40

Dont wear nipple rings into an MRI scanner.

Deleted User

Jan 29, 2015 19:41

Ouch

Jan 29, 2015 20:33

There's a black and yellow stripey line down in our NMR department we're not supposed to cross.

I am so tempted to throw metal stuff over it.

Jan 29, 2015 20:34

or people

Deleted User

Jan 29, 2015 20:35

Don't skinny dip into battery acid.

Jan 29, 2015 20:39

hahaha gotta love magnets! The scanner at my training site quenched once, that was awesome!

mmmmmm liquid nitrogen

Jan 29, 2015 20:41

I just had training on 'quenching' and it was basically "get the f**k out", I think there's liquid helium or hydrogen in one of them but yeah, liquid nitrogen! I get to play with that every day now! Chemistry really IS fun.

Jan 29, 2015 20:43

haha yeah quenches are pretty awesome.

Jan 29, 2015 20:44

I don't actually know what happens when it quenches... Is it just a leak?

Jan 29, 2015 20:52

Its when the liquid that cools the coils in the magnet boil off. And you get the leaking of the freezing gas and the huge explosive bang. Its quite brilliant. Although I would not like to be in the scanner when it happens, you would most likely s**te yer keks

Deleted User

Jan 29, 2015 20:53

Sounds like my ex