It is essential that you behave safely in the laboratory
at all times.
is essential that you follow these safety rules:
No running or jumping (the only exception is if you
wish to jump for joy at a particularly exciting part
of an experiment).
drinking and eating are forbidden in the laboratory.
The only exception is drinking from or around the water
fountain near the entrance door.
must be worn on the feet for safety reasons.
experiments use voltages exceeding 40 V. You must always
use the shrouded cables provided for these experiments.
sources must be signed for and returned at the end of
each laboratory class.
must be exercised when unplugging electrical apparatus
from the mains power sockets. The socket should be
switched off and you must keep your fingers away
from the pins on the plug.
with any sort of conductive implant e.g. a pacemaker
or a hip replacement, should avoid very strong magnetic
Safety Precautions For Liquid Nitrogen
liquid nitrogen with the same care as boiling water,
- its extremely low temperature can easily produce damage
to the skin similar to a burn.
nitrogen is always used in a Dewar (or Thermos-type)
flask, for the obvious reason of conserving the liquid
for as long as possible. Consequently only the outer
surface of the flask is at room temperature, and this
is the only part of the flask that should be touched
by unprotected hands. Skin touching a surface at liquid
nitrogen temperature will stick to that surface, and
so, not only will the skin be 'burnt', but also torn
as the limb is withdrawn from the surface.
gloves provided must always be worn when transferring
or pouring liquid nitrogen.
the eyes are especially vulnerable a safety visor, provided
for this purpose, must always be worn when handling
Precautions for Flashing Lights
very small percentage of people may experience a
seizure or convulsion when exposed to certain visual
images, including flashing lights. Even people with
no history of seizures or epilepsy can have an undiagnosed
condition that might cause a 'photosensitive epileptic
seizure' while observing flashing lights.
a seizure can be accompanied by a wide variety of
symptoms that could include: light-headedness, altered
vision, eye or face twitching, jerking or shaking
of arms and legs, disorientation, confusion or momentary
loss of awareness. Seizures can also cause a loss
of consciousness or convlusions that can lead to
injury from falling down or striking nearby objects.
If you suspect that yourself or another student if
experiencing any of the above symptoms,
TURN OFF THE FLASHING LIGHT SOURCE
You will be asked to sign a form that confirms that
you have read the above rules and agree to abide
them and behave safely whilst in the second year laboratory.