For the last couple of years I've been involved in running a science based "stall" at the Spring Fling which is an annual event held at the Norfolk Showground. Each year the Fling has a theme. Last year's was "water" so I had a spectacularly messy stall with seeming zillions of kids dunking biscuits... but that's another long story.
The theme for next year is "light" so I've been putting my thinking cap on. My vague idea at the minute is to run *something* to show how during daylight, fluorescent colours are highly visible and how at night, reflectives are better. possibly I'll have some sort of set up where I have a dark box, with a light at one end & something reflective at the other. and am getting my head around the fluorescent bit...
So - collective picking of brains, please - any ideas???
Cheers, helen s
--This is an invalid email address to avoid spam-- to get correct one remove dependency on fame & fortune h*$el*$$e**nd***$o$ts***i*$*$m**m$$o*n**s@$*$a$$o**l.c**$*$om$$
For the last couple of years I've been involved in running a science based "stall" at the Spring Fling which is an annual event held at the Norfolk Showground. Each year the Fling has a theme. Last year's was "water" so I had a spectacularly messy stall with seeming zillions of kids dunking biscuits... but that's another long story.
The theme for next year is "light" so I've been putting my thinking cap on. My vague idea at the minute is to run *something* to show how during daylight, fluorescent colours are highly visible and how at night, reflectives are better. possibly I'll have some sort of set up where I have a dark box, with a light at one end & something reflective at the other. and am getting my head around the fluorescent bit...
So - collective picking of brains, please - any ideas???
Cheers, helen s
--This is an invalid email address to avoid spam-- to get correct one remove dependency on fame & fortune h*$el*$$e**nd***$o$ts***i*$*$m**m$$o*n**s@$*$a$$o**l.c**$*$om$$
The trouble with fluorescent materials is you need real daylight, or at least a light source with lots of UV in it.
For the last couple of years I've been involved in running a science based "stall" at the Spring Fling which is an annual event held at the Norfolk Showground. Each year the Fling has a theme. Last year's was "water" so I had a spectacularly messy stall with seeming zillions of kids dunking biscuits... but that's another long story.
Quoted message said:
The theme for next year is "light" so I've been putting my thinking cap on. My vague idea at the minute is to run *something* to show how during daylight, fluorescent colours are highly visible and how at night, reflectives are better. possibly I'll have some sort of set up where I have a dark box, with a light at one end & something reflective at the other. and am getting my head around the fluorescent bit...
Quoted message said:
So - collective picking of brains, please - any ideas???
Quoted message said:
Cheers, helen s
A head torch is good for demonstrating how reflective stuff works; you might not even need a dark box.
If you can get your hands on a UV torch or light source, it will reveal fluorescent properties well. So will daylight. Pointing out how poorly fluorescent stuff performs in other artificial light just needs a room lit by an ordinary bulb.
Giving out small samples of various materials would mean participants can try the stuff out at home and might not cost much cos you only need small samples.
The theme for next year is "light" so I've been putting my thinking cap on.
Put a recumbent in the room and see how it swallows up the weak Jedi light... ;-)
Quoted message said:
vague idea at the minute is to run *something* to show how during daylight, fluorescent colours are highly visible and how at night, reflectives are better. possibly I'll have some sort of set up where I have a dark box, with a light at one end & something reflective at the other. and am getting my head around the fluorescent bit...
No practicals to add from the other posts, but I'd think if you can use cycle clothing and have an obvious *wow!* then that might have a useful and positive extra message without ramming it down people's throats.
Pete. -- Peter Clinch University of Dundee Tel 44 1382 660111 ext. 33637 Medical Physics, Ninewells Hospital Fax 44 1382 640177 Dundee DD1 9SY Scotland UK net [email hidden] dundee.ac.uk~pjclinchOpen ↗
For the last couple of years I've been involved in running a science based "stall" at the Spring Fling which is an annual event held at the Norfolk Showground. Each year the Fling has a theme. Last year's was "water" so I had a spectacularly messy stall with seeming zillions of kids dunking biscuits... but that's another long story.
The theme for next year is "light" so I've been putting my thinking cap on. My vague idea at the minute is to run *something* to show how during daylight, fluorescent colours are highly visible and how at night, reflectives are better. possibly I'll have some sort of set up where I have a dark box, with a light at one end & something reflective at the other. and am getting my head around the fluorescent bit...
So - collective picking of brains, please - any ideas???
Cheers, helen s
--This is an invalid email address to avoid spam-- to get correct one remove dependency on fame & fortune h*$el*$$e**nd***$o$ts***i*$*$m**m$$o*n**s@$*$a$$o**l.c**$*$om$$
The trouble with fluorescent materials is you need real daylight, or at least a light source with lots of UV in it.
For the last couple of years I've been involved in running a science based "stall" at the Spring Fling which is an annual event held at the Norfolk Showground. Each year the Fling has a theme. Last year's was "water" so I had a spectacularly messy stall with seeming zillions of kids dunking biscuits... but that's another long story.
Quoted message said:
The theme for next year is "light" so I've been putting my thinking cap on. My vague idea at the minute is to run *something* to show how during daylight, fluorescent colours are highly visible and how at night, reflectives are better. possibly I'll have some sort of set up where I have a dark box, with a light at one end & something reflective at the other. and am getting my head around the fluorescent bit...
Quoted message said:
So - collective picking of brains, please - any ideas???
Quoted message said:
Cheers, helen s
A head torch is good for demonstrating how reflective stuff works; you might not even need a dark box.
If you can get your hands on a UV torch or light source, it will reveal fluorescent properties well. So will daylight. Pointing out how poorly fluorescent stuff performs in other artificial light just needs a room lit by an ordinary bulb.
Giving out small samples of various materials would mean participants can try the stuff out at home and might not cost much cos you only need small samples.
The theme for next year is "light" so I've been putting my thinking cap on. My vague idea at the minute is to run *something* to show how during daylight, fluorescent colours are highly visible and how at night, reflectives are better. possibly I'll have some sort of set up where I have a dark box, with a light at one end & something reflective at the other. and am getting my head around the fluorescent bit...
As a leftover from teaching techie stuff to 10 yo girls I have a couple of setups with a fragment of solar panel, and a small electromotor. Rotation speed varies with the type of lamp you shine on it. Email me if you'd like to borrow it.
Just saw there is something similar with a cyclist for just 7.93 euro: opitec.nlITAOpen ↗ RTD?&P_L=N&P_S=N&P_V=4072859-&P_1=124144&P_6=&P_7=solar&P_8=&P_PGM=ITSUCH
Not particularly true to life though... 😉
Not light related but a good demo: use a wheel with rubber bands instead of spokes, mount it vertically, and aim a hairdryer at the rubber bands on one side, and the wheel will turn. Maybe next year if the theme is 'heat'?
Other topics related to light are lenses and mirrors, lots of fun games/gadgets there as well.
The theme for next year is "light" so I've been putting my thinking cap on.
Put a recumbent in the room and see how it swallows up the weak Jedi light... ;-)
Quoted message said:
vague idea at the minute is to run *something* to show how during daylight, fluorescent colours are highly visible and how at night, reflectives are better. possibly I'll have some sort of set up where I have a dark box, with a light at one end & something reflective at the other. and am getting my head around the fluorescent bit...
No practicals to add from the other posts, but I'd think if you can use cycle clothing and have an obvious *wow!* then that might have a useful and positive extra message without ramming it down people's throats.
Pete. -- Peter Clinch University of Dundee Tel 44 1382 660111 ext. 33637 Medical Physics, Ninewells Hospital Fax 44 1382 640177 Dundee DD1 9SY Scotland UK net [email hidden] dundee.ac.uk~pjclinchOpen ↗
The theme for next year is "light" so I've been putting my thinking cap on. My vague idea at the minute is to run *something* to show how during daylight, fluorescent colours are highly visible and how at night, reflectives are better. possibly I'll have some sort of set up where I have a dark box, with a light at one end & something reflective at the other. and am getting my head around the fluorescent bit...
So - collective picking of brains, please - any ideas???
You need a UV light to show the flourescnet to it's best advantage.
How about a slot viwer to show how retroreflecitve materials work over a quite narrow angle?
The use of shape in recognition?
-- Marc. Please note the above address is a spam trap, use marcc to reply Printing for clubs of all types jaceeprint.demon.co.ukjaceeprint.demon.co.ukOpen ↗ Stickers, banners & clothing, for clubs,teams, magazines and dealers.
"dirtylitterboxofferingstospammers" <[email hidden]> wrote in message "]news:[email hidden]... [snip]
Quoted message said:
and am getting my head around the fluorescent bit...
So - collective picking of brains, please - any ideas???
For a cheap UV light source, consider a "UV scanner"as sold for viewing security markings, bank notes etc. Available from Maplin, (maplin.co.ukmaplin.co.ukOpen ↗ ), RS components (rswww.comrswww.comOpen ↗ !) and many other sources.
The theme for next year is "light" so I've been putting my thinking cap on. My vague idea at the minute is to run *something* to show how during daylight, fluorescent colours are highly visible and how at night, reflectives are better. possibly I'll have some sort of set up where I have a dark box, with a light at one end & something reflective at the other. and am getting my head around the fluorescent bit...
As a leftover from teaching techie stuff to 10 yo girls I have a couple of setups with a fragment of solar panel, and a small electromotor. Rotation speed varies with the type of lamp you shine on it. Email me if you'd like to borrow it.
Just saw there is something similar with a cyclist for just 7.93 euro: opitec.nlITAOpen ↗ RTD?&P_L=N&P_S=N&P_V=4072859-&P_1=124144&P_6=&P_7=solar&P_8=&P_PGM=ITSUCH
Not particularly true to life though... 😉
Not light related but a good demo: use a wheel with rubber bands instead of spokes, mount it vertically, and aim a hairdryer at the rubber bands on one side, and the wheel will turn. Maybe next year if the theme is 'heat'?
Other topics related to light are lenses and mirrors, lots of fun games/gadgets there as well.
The theme for next year is "light" so I've been putting my thinking cap on. My vague idea at the minute is to run *something* to show how during daylight, fluorescent colours are highly visible and how at night, reflectives are better. possibly I'll have some sort of set up where I have a dark box, with a light at one end & something reflective at the other. and am getting my head around the fluorescent bit...
So - collective picking of brains, please - any ideas???
You need a UV light to show the flourescnet to it's best advantage.
How about a slot viwer to show how retroreflecitve materials work over a quite narrow angle?
The use of shape in recognition?
-- Marc. Please note the above address is a spam trap, use marcc to reply Printing for clubs of all types jaceeprint.demon.co.ukjaceeprint.demon.co.ukOpen ↗ Stickers, banners & clothing, for clubs,teams, magazines and dealers.
"dirtylitterboxofferingstospammers" <[email hidden]> wrote in message "]news:[email hidden]... [snip]
Quoted message said:
and am getting my head around the fluorescent bit...
So - collective picking of brains, please - any ideas???
For a cheap UV light source, consider a "UV scanner"as sold for viewing security markings, bank notes etc. Available from Maplin, (maplin.co.ukmaplin.co.ukOpen ↗ ), RS components (rswww.comrswww.comOpen ↗ !) and many other sources.
"Zog The Undeniable" <[email hidden]> wrote in message "]news:[email hidden]...
Quoted message said:
dirtylitterboxofferingstospammers said:
For the last couple of years I've been involved in running a science
based
Quoted message said:
Quoted message said:
"stall" at the Spring Fling which is an annual event held at the Norfolk Showground. Each year the Fling has a theme. Last year's was "water" so
I had a
Quoted message said:
Quoted message said:
spectacularly messy stall with seeming zillions of kids dunking
biscuits... but
Quoted message said:
Quoted message said:
that's another long story.
The theme for next year is "light" so I've been putting my thinking cap
on. My
Quoted message said:
Quoted message said:
vague idea at the minute is to run *something* to show how during
daylight,
Quoted message said:
Quoted message said:
fluorescent colours are highly visible and how at night, reflectives are better. possibly I'll have some sort of set up where I have a dark box,
with a
Quoted message said:
Quoted message said:
light at one end & something reflective at the other. and am getting my
head
Quoted message said:
Quoted message said:
around the fluorescent bit...
So - collective picking of brains, please - any ideas???
Cheers, helen s
--This is an invalid email address to avoid spam-- to get correct one remove dependency on fame & fortune h*$el*$$e**nd***$o$ts***i*$*$m**m$$o*n**s@$*$a$$o**l.c**$*$om$$
The trouble with fluorescent materials is you need real daylight, or at least a light source with lots of UV in it.
============= Possibly an ultraviolet heat lamp from Boots? We used to call them 'sunlamps'.
