|
|
WELCOME
TO
NOT
THE FAQ INDEX
Mixed Bag
How do video game guns work?
They use a
light sensor.
Video
Game guns
Is Glass a Liquid at room
temperature?
Is
glass liquid?
Glass
as a liquid
Glass
Flows
Glass
Flows
Is aluminium in pots or
deodorant bad for your health?
Metal
Poisoning
Aluminium
in deodorants
Aluminium
pots & Alzheimer's
Does Aluminium cause Cancer
Is
anti-perspirant bad for you?
Why do we
have 24 hours in a day?
Ancient history.
Why
24 hours in a day?
How does a fly in a car doing 100 km/hr keep up with
the car?
The fly moves with the air in the car, which moves
with the car.
fly,
the
fly.
How do touch lamps
work?
There are different theories:
Touch
lamps,
How does the petrol pump know
when the tank is full?
A pressure sensor underneath the
nozzle.
Petrol
pumps
If Teflon is non-stick, how do
they get it to stick to the pan?
It is polymerised after
being applied to the pan.
Teflon
What makes chilli hot?
Capsaicin
Chillis
What colour is an orange in the
dark?
Such a simple sounding question, with such a
complicated answer! This thread holds the record for longest thread on the
forum. Make sure you have a couple of spare days if you want to read all
of it!
Oranges,
Oranges
(part 2)
Can you get sunburnt through
glass?
Yes, but glass blocks some UV light.
Sunburnt
through glass?
Why did my drinking
glass spontaneously explode?
Probably due to "frozen in"
stresses.
Exploding
glass
Spontaneous breaking glass
Why is it that if you watch a
car, bike, etc, it sometimes looks like the wheels are slowly spinning
backwards?
It's probably to do with the eye's built-in
flicker fusion rate.
Spinning
wheels and
Car
wheel spokes
What is a flame really?
A plasma.
What
is fire?
Candle
Flame Hottest Part?
Flames
in space
Why do flames seem to have a minimum size? .
Why is North always at the top of
maps?
Why
is North always at the top of maps?
How does the Guinness "widget" work?
Guiness
and Widgets
What is Absolute Zero temperature? Can we reach
it?
The temperature at which all atomic motion ceases. It is
impossible to achieve.
Absolute
zero,
Absolute
zero.
How does placing a spoon in a
champagne bottle stop it going flat?
It appears not.
Bubbles
in Champagne
Terry's
Great Champagne Experiment
Why does
the flow of water from a hot water tap slowly reduce to a
trickle?
This is mostly due to expansion of the washer in
the hot tap.
Hot
water
Does hot water freeze faster
than cold water?
Maybe. It all depends on evaporation,
supercooling, convection, conduction and dissolved gases.
Hot water
Cold water
Freezing
water
Hot
water ice cubes.
How do Lava Lamps
work?
Lava
lamps
Does water flow down plugholes
in different directions in different hemispheres?
The
Coriolis effect is too weak to be dominant in a bathtub.
Water
flowing down a plug hole
Coriolis
effects.
Can we breath
liquid?
Breathing
liquid oxygen
Where
is it now: liquid breathing
Breathable
Liquid
Mentioned in as well
Fishes
and pressure
Youngest
preme Baby
Glues &
Adhesives
What
makes supa glue supa?
How
does glue dry?
What
Makes Glue Stick
How
does contact cement work?
Bioluminescence?
Bioluminescence
Glowing
sand
EMF Fields Danger
In an area with lots of the
phones and computers and their associated wiring there will be many kinds
of electromagnetic fields and non-ionizing electromagnetic radiation. In
particular, there will be power-frequency fields and radio-frequency
radiation.
Both power-frequency fields and radio-frequency radiation
can be harmful if they are intense enough, but it is very rare to find
exposures that high in the sort of room you describe.
For both
power-frequency fields and radio-frequency radiation have been the subject
of extensive studies: theoretical studies, studies on cells, studies on
animals and studies of exposed people.
http://www.madsci.org/posts/archives/apr2000/956119791.Me.r.htm
ELECTROMAGNETIC FIELDS AND PUBLIC HEALTH
http://www.who.int/peh-emf/index.htm
Welcome to the International
EMF Project by The World Health Organization of the UN
Computers/radiation
Mobiles
/ Cordless
phones
|
|
|
Home |
Credits |
Edit Policy |
Photo Gallery |
Self Service Science Forum |
Copyright
