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Smoke detectors etc

On a recent hotel stay we were all evacuated in the early hours of the morning as the fire alarms went off. Afterwards a member of staff said it was probably someone smoking in a non-smoking room. Are...

Daave

sweating

how come you can be dehydrated in the summer and sweat loads, but you still need a wee? why doest the body make the liquids go to the other places instead of making wee? and once in your bladder, can...

lord molly

water

when it heats up, it expands, when it cools down, it expands. at what temperature is water most dense? thanks

Daave

how come?

when i have a bath sometimes, i need a pee as soon as i sit in the water... what triggers that and why?

lovejoy0120

Caesium- price

I was told that the price of Caesium is $37.5 per gram (roughly) but how come they're selling it for $375 for 5g roughly on Goodfellow.com.Does anyone have a pricelist for any other alkali metals from...

dwil

Where in the world

Is it Nepal or Bhutan?

pb100191

Gas's - anaesthetics

Does anyone know the name of the gas given to you to make you fall asleep during operations.

lord molly

accuricy grade b glass wear

can any tell me, or give me a link saying the percentage tollerance of your standard grade b lab glasswear. when i say standard, i mean 25 cm3 pipette, 50 cm3 burette and a 250 cm3 volumetric flask?

xlouisex

Diffusion

Can anyone give me an example of diffusion in the body??

fuggy

sat nav

has the sat nav system seen the end of the magnetic compass

parremily

alanine

If 100 alanine molecules are joined together how many water molecules are produced?

jacobsmummy

conception

Ok does anyone know the statistics of falling pregnant first time twice? we got pregnant on our first try and now were thinking of trying for our next child my partner is convinced that his 'super...

shaun_04

Magnetic Field Strength, B

Why is the symbol "B"? Lots of theories but I need a definite answer, so does anyone know?

lindylooo

hand warmer - sodium acetate?

i left my hand warmer (gel and metal disc in plastic pack) to boil dry (to melt the crystals) and it subsequently exploded white powder, is it toxic?

sonia_h

Psychology

I am thinking of doing an access course at college and then my aim is to go on and achieve a degree in psychology. My question is ' Once I have a degree in psychology, what can I do with it? (In terms...

unitedgirl7

The Respose of woodlice to light and dark

can anyone please help?because i need this for next week's assignment... thanks xxx

weavero

Does blood eventually end up as poo?

Despite the question looking juvenile, I'd like to know if blood, and indeed, other parts of the body that decay, end up coming out t'other end? I always thought it did, and there I was at work going...

solera

soda acid fire extinguishers

What was the specific gravity of sulphuric acid used in the old soda /acid types, both the open bottle types and the sealed bottle type

curlyfilm

ghee, is it just butter

i know ghee is supposed to be just clarified butter, but the shop bought ones seem to have a fragrant smell, its sort of sweet and sickly, because i buy an imported one, i can't read the ingrediants,...

ck1

Ions and free radicals

Whats the difference..?

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