Thoughts please
View Full Version : Thoughts please
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$$o**l.c**$*$om$$
dirtylitterboxofferingstospammers wrote:
> 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.
wafflycathcs@aol.comcomcom (dirtylitterboxofferingstospammers)typed
> 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
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.
--
Helen D. Vecht: helenvecht@zetnet.co.uk Edgware.
dirtylitterboxofferingstospammers wrote:
>
> The theme for next year is "light" so I've been putting my thinking cap on.
Why not a demonstration of the magic whereby a cyclist becomes wholly invisible the moment they put
on bright yellow flourescent clothing.
James
"dirtylitterboxofferingstospammers" <wafflycathcs@aol.comcomcom> wrote
> 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???
I'm sure the kiddies would be more impressed if you just burnt shedloads of magnesium and said "Et
voila, some light" as they screwed up their eyes.
dirtylitterboxofferingstospammers wrote:
> 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... ;-)
> 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 p.j.clinch@dundee.ac.uk
http://www.dundee.ac.uk/~pjclinch/
dirtylitterboxofferingstospammers wrote:
> 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.
wafflycathcs@aol.comcomcom (dirtylitterboxofferingstospammers)typed
> 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
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.
--
Helen D. Vecht: helenvecht@zetnet.co.uk Edgware.
dirtylitterboxofferingstospammers wrote:
>
> The theme for next year is "light" so I've been putting my thinking cap on.
Why not a demonstration of the magic whereby a cyclist becomes wholly invisible the moment they put
on bright yellow flourescent clothing.
James
"dirtylitterboxofferingstospammers" <wafflycathcs@aol.comcomcom> wrote
> 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???
I'm sure the kiddies would be more impressed if you just burnt shedloads of magnesium and said "Et
voila, some light" as they screwed up their eyes.
wafflycathcs@aol.comcomcom (dirtylitterboxofferingstospammers) writes:
>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: http://www.opitec.nl/cgi/ITA-
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.
Roos
dirtylitterboxofferingstospammers wrote:
> 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... ;-)
> 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 p.j.clinch@dundee.ac.uk
http://www.dundee.ac.uk/~pjclinch/
dirtylitterboxofferingstospammers <wafflycathcs@aol.comcomcom> wrote:
> 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 http://www.jaceeprint.demon.co.uk (http://www.jaceeprint.demon.co.uk/) Stickers, banners & clothing, for clubs,teams, magazines
and dealers.
Very little to do with the subj. but HP Velotechnik do a nice glow-in-the-dark T-shaped shirt -
http://www.hpvelotechnik.com/produkte/tshirts_e.html
--
Dave Larrington - http://www.legslarry.beerdrinkers.co.uk/
===========================================================
Editor - British Human Power Club Newsletter
http://www.bhpc.org.uk/
===========================================================
"dirtylitterboxofferingstospammers" <wafflycathcs@aol.comcomcom> wrote in message
news:20031202154723.15459.00000055@mb-m03.aol.com... [snip]
> 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, (http://www.maplin.co.uk (http://www.maplin.co.uk/) ), RS components (http://rswww.com (http://rswww.com/) !) and
many other sources.
Ben
wafflycathcs@aol.comcomcom (dirtylitterboxofferingstospammers) writes:
>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: http://www.opitec.nl/cgi/ITA-
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.
Roos
dirtylitterboxofferingstospammers <wafflycathcs@aol.comcomcom> wrote:
> 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 http://www.jaceeprint.demon.co.uk (http://www.jaceeprint.demon.co.uk/) Stickers, banners & clothing, for clubs,teams, magazines
and dealers.
Very little to do with the subj. but HP Velotechnik do a nice glow-in-the-dark T-shaped shirt -
http://www.hpvelotechnik.com/produkte/tshirts_e.html
--
Dave Larrington - http://www.legslarry.beerdrinkers.co.uk/
===========================================================
Editor - British Human Power Club Newsletter
http://www.bhpc.org.uk/
===========================================================
"dirtylitterboxofferingstospammers" <wafflycathcs@aol.comcomcom> wrote in message
news:20031202154723.15459.00000055@mb-m03.aol.com... [snip]
> 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, (http://www.maplin.co.uk (http://www.maplin.co.uk/) ), RS components (http://rswww.com (http://rswww.com/) !) and
many other sources.
Ben
"Zog The Undeniable" <ggg@hhh.net> wrote in message news:bqj0k9$vrp$1@news6.svr.pol.co.uk...
> dirtylitterboxofferingstospammers wrote:
>
> > For the last couple of years I've been involved in running a science
based
> > "stall" at the Spring Fling which is an annual event held at the Norfolk Showground. Each year
> > the Fling has a theme. Last year's was "water" so
I had a
> > spectacularly messy stall with seeming zillions of kids dunking
biscuits... but
> > that's another long story.
> >
> > The theme for next year is "light" so I've been putting my thinking cap
on. My
> > vague idea at the minute is to run *something* to show how during
daylight,
> > fluorescent colours are highly visible and how at night, reflectives are better. possibly I'll
> > have some sort of set up where I have a dark box,
with a
> > light at one end & something reflective at the other. and am getting my
head
> > around the fluorescent bit...
> >
> > So - collective picking of brains, please - any ideas???
> >
> > Cheers, helen s
> >
> > --This is an invalid email address to avoid spam-- to get correct one remove dependency on fame
> > & fortune h*$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.
>
=============
Possibly an ultraviolet heat lamp from Boots? We used to call them 'sunlamps'.
Cic.
vBulletin, Copyright ©2000-2009, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by
vBSEO 3.3.0
